Contest Name: 39081 - Thebes Academy Sheet (Contest is over)

Standings - Submissions - Problems - Registrants


Problem Name Online Judge Year Contest
1 P1 - Watermelon Codeforces Codeforces Beta Round #4 (Div. 2 Only)
2 P2 - Theatre Square Codeforces Codeforces Beta Round #1
3 P3 - Bit++ Codeforces Codeforces Round #173 (Div. 2)
4 P4 - George and Accommodation Codeforces Codeforces Round #267 (Div. 2)
5 P5 - Young Physicist Codeforces Codeforces Beta Round #63 (Div. 2)
6 P6 - Beautiful Year Codeforces Codeforces Round #166 (Div. 2)
7 P7 - Hulk Codeforces Codeforces Round #366 (Div. 2)
8 P8 - Taxi Codeforces VK Cup 2012 Qualification Round 1
9 P9 - Reconnaissance 2 Codeforces Codeforces Beta Round #34 (Div. 2)
10 P10 - Army Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules)
11 P11 - Bulbs Codeforces Codeforces Round #338 (Div. 2)
12 P12 - Where is the Marble? UVA
13 P13 - Sales UVA
14 P14 - Closest Sums UVA
15 P15 - Next Round Codeforces VK Cup 2012 Qualification Round 1
16 P16 - Way Too Long Words Codeforces Codeforces Beta Round #65 (Div. 2)
17 P17 - String Task Codeforces Codeforces Beta Round #89 (Div. 2)
18 P18 - Petya and Strings Codeforces Codeforces Beta Round #85 (Div. 2 Only)
19 P19 - Word Capitalization Codeforces Codeforces Round #172 (Div. 2)
20 P20 - cAPS lOCK Codeforces Codeforces Beta Round #95 (Div. 2)
21 P21 - Beautiful Matrix Codeforces Codeforces Round #161 (Div. 2)
22 P22 - Translation Codeforces Codeforces Beta Round #40 (Div. 2)
23 P23 - Have Fun with Matrices UVA
24 P24 - Symmetric Matrix UVA
25 P25 - Square Sums UVA
26 P26 - Drinks Codeforces Codeforces Round #126 (Div. 2)
27 P27 - Arrival of the General Codeforces Codeforces Round #103 (Div. 2)
28 P28 - Queue at the School Codeforces Codeforces Round #163 (Div. 2)
29 P29 - Soft Drinking Codeforces Codeforces Round #107 (Div. 2)
30 P30 - Boy or Girl Codeforces Codeforces Round #146 (Div. 2)
31 P31 - Soldier and Bananas Codeforces Codeforces Round #304 (Div. 2)
32 P32 - Even Odds Codeforces Codeforces Round #188 (Div. 2)
33 P33 - Die Roll Codeforces Codeforces Beta Round #9 (Div. 2 Only)
34 P34 - Vanya and Cards Codeforces Codeforces Round #235 (Div. 2)
35 P35 - Expression Codeforces Codeforces Round #274 (Div. 2)
36 P36 - Buttons Codeforces Codeforces Round #164 (Div. 2)
37 P37 - Vanya and Fence Codeforces Codeforces Round #355 (Div. 2)
38 P38 - Gravity Flip Codeforces Codeforces Round #238 (Div. 2)
39 P39 - Points on Line Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2)
40 P40 - Powers of Two Codeforces Educational Codeforces Round 15
41 P41 - Interesting drink Codeforces Codeforces Round #367 (Div. 2)
42 P42 - Sort! Sort!! and Sort!!! UVA
43 P43 - The Playboy Chimp UVA
44 P44 - Mahmoud and a Triangle Codeforces Codeforces Round #396 (Div. 2)
45 P45 - 4 values whose sum is 0 SPOJ
46 P46 - Queries about less or equal elements Codeforces Educational Codeforces Round 2
47 P47 - Devu, the Singer and Churu, the Joker Codeforces Codeforces Round #251 (Div. 2)
48 P48 - Queue Codeforces Codeforces Round #303 (Div. 2)
49 P49 - Helpful Maths Codeforces Codeforces Round #197 (Div. 2)
50 P50 - History Grading UVA
51 P51 - Testing the CATCHER UVA
52 P52 - Longest Common Subsequence UVA
53 P53 - Bytelandian gold coins SPOJ
54 P54 - Dividing coins UVA
55 P55 - Adjacent Bit Counts SPOJ
56 P56 - Easy Longest Increasing Subsequence SPOJ
57 P57 - ACM (ACronymMaker) SPOJ
58 P58 - Alphacode SPOJ
59 P59 - Assignments SPOJ
60 P60 - Balancing the Stone SPOJ
61 P61 - Batman UVA
62 P62 - Big Maximum Sum Codeforces Codeforces Beta Round #67 (Div. 2)
63 P63 - BLAST SPOJ
64 P64 - Boy Scouts SPOJ
65 P65 - Bytelandian gold coins SPOJ
66 P66 - Candy I SPOJ
67 P67 - Card Sorting SPOJ
68 P68 - Chocolate SPOJ
69 P69 - Chop Ahoy! Revisited! SPOJ
70 P70 - Cinema Cashier Codeforces Codeforces Beta Round #10
71 P71 - Coins Game SPOJ
72 P72 - Counting The Way of Bracket Replacement SPOJ
73 P73 - Decoding Morse Sequences SPOJ
74 P74 - Distinct Subsequences SPOJ
75 P75 - DNA Laboratory SPOJ
76 P76 - DNA Sequences SPOJ
77 P77 - Feynman SPOJ
78 P78 - Help the soldier SPOJ
79 P79 - I-Keyboard SPOJ
80 P80 - Interesting number SPOJ
81 P81 - Longest Regular Bracket Sequence Codeforces Codeforces Beta Round #5
82 P82 - Looking for Order Codeforces Codeforces Beta Round #8
83 P83 - Message Live Archive 2008 Asia - Taipei
84 P84 - Message Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2)
85 P85 - Mysterious Present Codeforces Codeforces Beta Round #4 (Div. 2 Only)
86 P86 - No Change Live Archive 2001 Europe - Southwestern
87 P87 - Numbers Codeforces Codeforces Beta Round #13
88 P88 - Particular Palindromes Live Archive 2003 North America - Pacific Northwest
89 P89 - Partitions Live Archive 2002 World Finals - Honolulu
90 P90 - Party Schedule SPOJ
91 P91 - Permutations SPOJ
92 P92 - Petr# Codeforces Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only)
93 P93 - Philosophers Stone SPOJ
94 P94 - Piggy-Bank SPOJ
95 P95 - Pilots SPOJ
96 P96 - Point Connection Game in a Circle SPOJ
97 P97 - Rectangles Perimeter SPOJ
98 P98 - Rent your airplane and make money SPOJ
99 P99 - Roads SPOJ
100 P100 - Scuba diver SPOJ
101 P101 - Slikar SPOJ
102 P102 - Street SPOJ
103 P103 - String problem SPOJ
104 P104 - String Shuffle SPOJ
105 P105 - Summing to a Square Prime SPOJ
106 P106 - Sums in a Triangle SPOJ
107 P107 - The Double HeLiX SPOJ
108 P108 - Three-coloring of binary trees SPOJ
109 P109 - Tiling a Grid With Dominoes SPOJ
110 P110 - Tower of Babylon SPOJ
111 P111 - Treats for the Cows SPOJ
112 P112 - Tri graphs SPOJ
113 P113 - Trip SPOJ
114 P114 - Two Ends SPOJ
115 P115 - Up Subsequence SPOJ
116 P116 - Vertex Cover SPOJ
117 P117 - The jackpot UVA
118 P118 - Maximum Sub-sequence Product UVA
119 P119 - Two Ends SPOJ
120 P120 - Alphacode SPOJ
121 P121 - Broken Keyboard SPOJ
122 P122 - The Double HeLiX Live Archive 2005 Africa/Middle East - Arab and North Africa
123 P123 - Maximum Sum UVA
124 P124 - Take the Land UVA
125 P125 - Aibohphobia SPOJ
126 P126 - History Grading UVA
127 P127 - What Goes Up UVA
128 P128 - The Tower of Babylon UVA
129 P129 - The Knapsack Problem SPOJ
130 P130 - Scuba diver SPOJ
131 P131 - Feast Coins A2 Online Judge
132 P132 - Edit distance SPOJ
133 P133 - BerSU Ball Codeforces Codeforces Round #277.5 (Div. 2)
134 P134 - ABCDEF SPOJ
135 P135 - The Double HeLiX SPOJ
136 P136 - CWC-2015 SPOJ
137 P137 - Chocolate SPOJ
138 P138 - Count The Indexes SPOJ
139 P139 - The Egyptian Parliament SPOJ
140 P140 - Can You Make It Empty 2 SPOJ
141 P141 - Can You Make It Empty 3 SPOJ
142 P142 - Aritho-geometric Series (AGS) SPOJ
143 P143 - Cube Free Numbers SPOJ
144 P144 - Countdown SPOJ
145 P145 - New Year Candles Codeforces Good Bye 2013
146 P146 - Calculating Function Codeforces Codeforces Round #277 (Div. 2)
147 P147 - Case of the Zeros and Ones Codeforces Codeforces Round #310 (Div. 2)
148 P148 - Vanya and Lanterns Codeforces Codeforces Round #280 (Div. 2)
149 P149 - Worms Codeforces Codeforces Round #271 (Div. 2)
150 P150 - Vanya and Books Codeforces Codeforces Round #308 (Div. 2)
151 P151 - Random Teams Codeforces Codeforces Round #273 (Div. 2)
152 P152 - Largest Submatrix UVA
153 P153 - Murcia's Skyline UVA
154 P154 - Diving for Gold UVA
155 P155 - Sum of Different Primes UVA
156 P156 - SuperSale UVA
157 P157 - Luggage UVA
158 P158 - Trouble of 13-Dots UVA
159 P159 - Let Me Count The Ways UVA
160 P160 - Dollars UVA
161 P161 - Ingenuous Cubrency UVA
162 P162 - Collecting Beepers UVA
163 P163 - Unidirectional TSP UVA
164 P164 - Flight Planner UVA
165 P165 - How do you add? UVA
166 P166 - Longest Match UVA
167 P167 - Prince and Princess UVA
168 P168 - String to Palindrome UVA
169 P169 - Make Palindrome UVA
170 P170 - Longest Palindrome UVA
171 P171 - Safe Salutations UVA
172 P172 - Compromise UVA
173 P173 - Game of Sum UVA
174 P174 - Cutting Sticks UVA
175 P175 - Account Book UVA
176 P176 - Optimal Binary Search Tree UVA
177 P177 - Maximum sum on a torus UVA
178 P178 - Dynamic Frog UVA
179 P179 - Pebble Solitaire UVA
180 P180 - Crime Wave - The Sequel UVA
181 P181 - Beautiful Numbers UVA
182 P182 - Forming Quiz Teams UVA
183 P183 - Getting in Line UVA
184 P184 - Headmaster's Headache UVA
185 P185 - Mines For Diamonds UVA
186 P186 - Segments UVA
187 P187 - Pay the Price UVA
188 P188 - k-Tree Codeforces Codeforces Round #247 (Div. 2)
189 P189 - Caesar's Legions Codeforces Codeforces Beta Round #89 (Div. 2)
190 P190 - Xenia and Weights Codeforces Codeforces Round #197 (Div. 2)
191 P191 - Working out Codeforces Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2)
192 P192 - Greenhouse Effect Codeforces Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2)
193 P193 - LATGACH3 SPOJ
194 P194 - Bracket Sequence SPOJ
195 P195 - Sorting is not easy SPOJ
196 P196 - Bee Walk SPOJ
197 P197 - Minus Operation SPOJ
198 P198 - Tiling a WxH Grid With Dominoes SPOJ
199 P199 - Musketeers SPOJ
200 P200 - Sweet and Sour Rock SPOJ
201 P201 - Square Brackets SPOJ
202 P202 - Making A Budget SPOJ
203 P203 - Cross-country SPOJ
204 P204 - Feline Olympics - Mouseball SPOJ
205 P205 - Many polygons SPOJ
206 P206 - Investment Money SPOJ
207 P207 - Let go to the movies SPOJ
208 P208 - Any fool can do it SPOJ
209 P209 - The Courier SPOJ
210 P210 - Deliver pizza SPOJ
211 P211 - Counting K-Rectangle SPOJ
212 P212 - Packing Rectangles SPOJ
213 P213 - Pocket Money SPOJ
214 P214 - Najkraci SPOJ
215 P215 - Phidias SPOJ
216 P216 - Con-Junctions SPOJ
217 P217 - Tourist SPOJ
218 P218 - Menu SPOJ
219 P219 - Dab of Backpack SPOJ
220 P220 - Martian Mining SPOJ
221 P221 - The Secret of an Aerolite SPOJ
222 P222 - Oil Company SPOJ
223 P223 - Complete the Sequence! SPOJ
224 P224 - Recursive Sequence (Version II) SPOJ
225 P225 - Recursive Sequence (Version X) SPOJ
226 P226 - Maximum Triangle Area SPOJ
227 P227 - Convex Polygons SPOJ
228 P228 - Polygon SPOJ
229 P229 - Fractionated morse cipher SPOJ
230 P230 - Histogram SPOJ
231 P231 - Traveling by Stagecoach SPOJ
232 P232 - Distinct Increasing Subsequences SPOJ
233 P233 - Increasing Subsequences SPOJ
234 P234 - A short vacation in Disneyland SPOJ
235 P235 - Wooden Sticks SPOJ
236 P236 - Nested Dolls SPOJ
237 P237 - System of Equations Codeforces Codeforces Round #131 (Div. 2)
238 P238 - Back to High School Physics UVA
239 P239 - Vasya and Socks Codeforces Codeforces Round #262 (Div. 2)
240 P240 - Automatic Answer UVA
241 P241 - The number of positions Codeforces Codeforces Beta Round #92 (Div. 2 Only)
242 P242 - Dasha and Stairs Codeforces Codeforces Round #394 (Div. 2)
243 P243 - King Moves Codeforces Educational Codeforces Round 16
244 P244 - Meeting of Old Friends Codeforces Codeforces Round #371 (Div. 2)
245 P245 - The number of positions Codeforces Codeforces Beta Round #92 (Div. 2 Only)
246 P246 - Dasha and Stairs Codeforces Codeforces Round #394 (Div. 2)
247 P247 - King Moves Codeforces Educational Codeforces Round 16
248 P248 - Meeting of Old Friends Codeforces Codeforces Round #371 (Div. 2)
249 P249 - inc ARG Codeforces Codeforces Round #265 (Div. 2)
250 P250 - Parallelepiped Codeforces Codeforces Round #138 (Div. 2)
251 P251 - Initial Bet Codeforces Codeforces Round #273 (Div. 2)
252 P252 - Wizards and Demonstration Codeforces Codeforces Round #114 (Div. 2)
253 P253 - Buggy Sorting Codeforces Codeforces Round #151 (Div. 2)
254 P254 - Dima and Friends Codeforces Codeforces Round #167 (Div. 2)
255 P255 - Ilya and Bank Account Codeforces Codeforces Round #186 (Div. 2)
256 P256 - Team Codeforces Codeforces Round #143 (Div. 2)
257 P257 - Ciel and Dancing Codeforces Codeforces Round #190 (Div. 2)
258 P258 - Toy Army Codeforces Codeforces Beta Round #72 (Div. 2 Only)
259 P259 - Duff and Meat Codeforces Codeforces Round #326 (Div. 2)
260 P260 - Roma and Lucky Numbers Codeforces Codeforces Round #160 (Div. 2)
261 P261 - Pashmak and Garden Codeforces Codeforces Round #261 (Div. 2)
262 P262 - The number of positions Codeforces Codeforces Beta Round #92 (Div. 2 Only)
263 P263 - Dasha and Stairs Codeforces Codeforces Round #394 (Div. 2)
264 P264 - King Moves Codeforces Educational Codeforces Round 16
265 P265 - Meeting of Old Friends Codeforces Codeforces Round #371 (Div. 2)
266 P266 - Magnets Codeforces Codeforces Round #200 (Div. 2)
267 P267 - Anton and Danik Codeforces Codeforces Round #379 (Div. 2)
268 P268 - Bear and Big Brother Codeforces Codeforces Round #405 (rated, Div. 2, based on VK Cup 2017 Round 1)
269 P269 - Xenia and Divisors Codeforces Codeforces Round #199 (Div. 2)
270 P270 - Sereja and Coat Rack Codeforces Codeforces Round #215 (Div. 2)
271 P271 - Yaroslav and Permutations Codeforces Codeforces Round #179 (Div. 2)
272 P272 - Anton and Danik Codeforces Codeforces Round #379 (Div. 2)
273 P273 - Bear and Big Brother Codeforces Codeforces Round #405 (rated, Div. 2, based on VK Cup 2017 Round 1)
274 P274 - Xenia and Divisors Codeforces Codeforces Round #199 (Div. 2)
275 P275 - Sereja and Coat Rack Codeforces Codeforces Round #215 (Div. 2)
276 P276 - Yaroslav and Permutations Codeforces Codeforces Round #179 (Div. 2)
277 P277 - Domino Codeforces Codeforces Round #205 (Div. 2)
278 P278 - Playing with Dice Codeforces Codeforces Round #222 (Div. 2)
279 P279 - I_love_\%username\% Codeforces Codeforces Round #109 (Div. 2)
280 P280 - Lunch Rush Codeforces Codeforces Round #169 (Div. 2)
281 P281 - Raising Bacteria Codeforces Codeforces Round #320 (Div. 2) [Bayan Thanks-Round]
282 P282 - Game With Sticks Codeforces Codeforces Round #258 (Div. 2)
283 P283 - Cheap Travel Codeforces Codeforces Round #266 (Div. 2)
284 P284 - Choosing Teams Codeforces Codeforces Round #246 (Div. 2)
285 P285 - Amusing Joke Codeforces Codeforces Round #101 (Div. 2)
286 P286 - Pangram Codeforces Codeforces Round #295 (Div. 2)
287 P287 - Presents Codeforces Codeforces Beta Round #97 (Div. 2)
288 P288 - Lights Out Codeforces Codeforces Round #168 (Div. 2)
289 P289 - Chat room Codeforces Codeforces Beta Round #54 (Div. 2)
290 P290 - Dubstep Codeforces Codeforces Round #130 (Div. 2)
291 P291 - Snacktower Codeforces Codeforces Round #398 (Div. 2)
292 P292 - The 3n + 1 problem UVA
293 P293 - Exact Sum UVA
294 P294 - The Great Ball SPOJ
295 P295 - Don't Get Rooked UVA
296 P296 - Word Codeforces Codeforces Beta Round #55 (Div. 2)
297 P297 - Yet Another Permutations Problem SPOJ
298 P298 - What is your Logo SPOJ
299 P299 - Anton and Letters Codeforces Codeforces Round #253 (Div. 2)
300 P300 - Juicer Codeforces AIM Tech Round 3 (Div. 2)
301 P301 - Panoramix's Prediction Codeforces Codeforces Beta Round #69 (Div. 2 Only)
302 P302 - Jolly Jumpers UVA
303 P303 - Digital Fortress UVA
304 P304 - Group Reverse UVA
305 P305 - Free spots UVA
306 P306 - Substitution Cypher UVA
307 P307 - Collecting Beats is Fun Codeforces Codeforces Round #219 (Div. 2)
308 P308 - Chessboard in FEN UVA
309 P309 - HQ9+ Codeforces Codeforces Beta Round #96 (Div. 2)
310 P310 - The 3n + 1 problem UVA
311 P311 - Cinema Line Codeforces Codeforces Round #202 (Div. 2)
312 P312 - Anton and Digits Codeforces Codeforces Round #379 (Div. 2)
313 P313 - Sort the Array Codeforces Codeforces Round #258 (Div. 2)
314 P314 - Wilbur and Array Codeforces Codeforces Round #331 (Div. 2)
315 P315 - Square Numbers UVA
316 P316 - Three-square UVA
317 P317 - Burger Time? UVA
318 P318 - Zeros and Ones UVA
319 P319 - Rat Attack UVA
320 P320 - k-String Codeforces Codeforces Round #135 (Div. 2)
321 P321 - Cut Ribbon Codeforces Codeforces Round #119 (Div. 2)
322 P322 - Two Bags of Potatoes Codeforces Codeforces Round #148 (Div. 2)
323 P323 - Vitya in the Countryside Codeforces Codeforces Round #373 (Div. 2)
324 P324 - Mike and palindrome Codeforces Codeforces Round #410 (Div. 2)
325 P325 - Cookies Codeforces Codeforces Beta Round #94 (Div. 2 Only)
326 P326 - Life Without Zeros Codeforces Codeforces Beta Round #67 (Div. 2)
327 P327 - Nearly Lucky Number Codeforces Codeforces Beta Round #84 (Div. 2 Only)
328 P328 - Generating Fast UVA
329 P329 - Parentheses Balance UVA
330 P330 - Throwing cards away I UVA
331 P331 - Mother bear UVA
332 P332 - One-Two-Three UVA
333 P333 - Word Scramble UVA
334 P334 - All in All UVA
335 P335 - Decoding the message. UVA
336 P336 - Extra Spaces UVA
337 P337 - Periodic Strings UVA
338 P338 - 2D-SORT SPOJ
339 P339 - Vessels Codeforces Codeforces Round #218 (Div. 2)
340 P340 - Printer Queue UVA
341 P341 - ID Codes UVA
342 P342 - Team Queue UVA
343 P343 - Birthdates UVA
344 P344 - Letter Frequency UVA
345 P345 - Vitaly and Strings Codeforces Codeforces Round #293 (Div. 2)
346 P346 - Sinking Ship Codeforces Codeforces Beta Round #59 (Div. 2)
347 P347 - Pesky Palindromes UVA
348 P348 - Almost Prime Codeforces Codeforces Beta Round #26 (Codeforces format)
349 P349 - Easy Number Challenge Codeforces Codeforces Round #146 (Div. 2)
350 P350 - Prime Words UVA
351 P351 - Prime Cuts UVA
352 P352 - Almost Prime Numbers UVA
353 P353 - T-primes Codeforces Codeforces Round #142 (Div. 2)
354 P354 - Noldbach problem Codeforces Codeforces Beta Round #17
355 P355 - Again Twenty Five! Codeforces Experimental Educational Round: VolBIT Formulas Blitz
356 P356 - Prime Matrix Codeforces Codeforces Round #166 (Div. 2)
357 P357 - Primal Fear SPOJ
358 P358 - k-th divisor Codeforces Educational Codeforces Round 17
359 P359 - Modified GCD Codeforces Codeforces Beta Round #67 (Div. 2)
360 P360 - The New Rule in Euphomia UVA
361 P361 - Maximum GCD UVA
362 P362 - GCD LCM UVA
363 P363 - Ocean Deep! - Make it shallow!! UVA
364 P364 - Ones UVA
365 P365 - Multipliers Codeforces Codeforces Round #338 (Div. 2)
366 P366 - Truckloads SPOJ
367 P367 - Reverse SPOJ
368 P368 - Mother bear UVA
369 P369 - Hello Recursion SPOJ
370 P370 - I'm bored with life Codeforces Codeforces Round #422 (Div. 2)
371 P371 - Passwords UVA
372 P372 - Word Index UVA
373 P373 - Sum It Up UVA
374 P374 - Prime Ring Problem UVA
375 P375 - A-Sequence UVA
376 P376 - Division UVA
377 P377 - Back to the 8-Queens UVA
378 P378 - Squares Live Archive 2004 South Pacific
379 P379 - Cumulative Sum Query SPOJ
380 P380 - Pasha and String Codeforces Codeforces Round #297 (Div. 2)
381 P381 - Kuriyama Mirai's Stones Codeforces Codeforces Round #248 (Div. 2)
382 P382 - Tell me the frequencies! UVA
383 P383 - Maximum Absurdity Codeforces Codeforces Round #193 (Div. 2)
384 P384 - Ilya and Queries Codeforces Codeforces Round #186 (Div. 2)
385 P385 - Vasya and Robot Codeforces Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2)
386 P386 - Repair road SPOJ
387 P387 - Bits Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2)
388 P388 - CD UVA
389 P389 - Little Girl and Maximum XOR Codeforces Codeforces Round #169 (Div. 2)
390 P390 - Tavas and SaDDas Codeforces Codeforces Round #299 (Div. 2)
391 P391 - Lucky Numbers (easy) Codeforces Codeforces Beta Round #77 (Div. 2 Only)
392 P392 - Fedor and New Game Codeforces Codeforces Round #267 (Div. 2)
393 P393 - Bars UVA
394 P394 - Preparing Olympiad Codeforces Codeforces Round #306 (Div. 2)
395 P395 - The Child and Set Codeforces Codeforces Round #250 (Div. 2)
396 P396 - Aggressive cows SPOJ
397 P397 - Hamburgers Codeforces Codeforces Round #218 (Div. 2)
398 P398 - Gotta Catch 'Em All A2 Online Judge
399 P399 - Road to Cinema Codeforces Technocup 2017 - Elimination Round 2
400 P400 - Mr. Bender and Square Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1)
401 P401 - Multiplication Table Codeforces Codeforces Round #256 (Div. 2)
402 P402 - Hard Process Codeforces Educational Codeforces Round 11
403 P403 - Audition SPOJ
404 P404 - Crossed Ladders UVA
405 P405 - Magic Powder - 2 Codeforces Codeforces Round #350 (Div. 2)
406 P406 - Solve It UVA
407 P407 - Exposition Codeforces Codeforces Beta Round #6 (Div. 2 Only)
408 P408 - Longest k-Good Segment Codeforces Educational Codeforces Round 5
409 P409 - Maximum Value Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2)
410 P410 - Anton and Making Potions Codeforces Codeforces Round #379 (Div. 2)
411 P411 - USB vs. PS/2 Codeforces Educational Codeforces Round 17
412 P412 - Guess a number! Codeforces Codeforces Round #241 (Div. 2)
413 P413 - Counting Kangaroos is Fun Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2)
414 P414 - Hotels Along the Croatian Coast SPOJ
415 P415 - Books Codeforces Codeforces Round #171 (Div. 2)
416 P416 - Three Base Stations Codeforces Codeforces Beta Round #48
417 P417 - Trip For Meal Codeforces Codeforces Round #441 (Div. 2, by Moscow Team Olympiad)
418 P418 - Chores Codeforces Educational Codeforces Round 30
419 P419 - Street Parade SPOJ
420 P420 - Ada and Queue SPOJ
421 P421 - I Can Guess the Data Structure! UVA
422 P422 - Ferry Loading IV UVA
423 P423 - Abstract Names UVA
424 P424 - Little Elephant and Chess Codeforces Codeforces Round #157 (Div. 2)
425 P425 - Decoding UVA
426 P426 - Football Codeforces Codeforces Beta Round #77 (Div. 2 Only)
427 P427 - Two Substrings Codeforces Codeforces Round #306 (Div. 2)
428 P428 - I Can Guess the Data Structure! UVA
429 P429 - Cosmic Tables Codeforces Codeforces Round #137 (Div. 2)
430 P430 - Letter Codeforces Codeforces Beta Round #42 (Div. 2)
431 P431 - Phone Numbers Codeforces Codeforces Round #107 (Div. 2)
432 P432 - No to Palindromes! Codeforces Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2)
433 P433 - The Department of Redundancy Department UVA
434 P434 - President's Office Codeforces Codeforces Beta Round #6 (Div. 2 Only)
435 P435 - Sereja and Dima Codeforces Codeforces Round #223 (Div. 2)
436 P436 - Stones on the Table Codeforces Codeforces Round #163 (Div. 2)
437 P437 - Police Recruits Codeforces Codeforces Round #244 (Div. 2)
438 P438 - Night at the Museum Codeforces Codeforces Round #376 (Div. 2)
439 P439 - Games Codeforces Codeforces Round #164 (Div. 2)
440 P440 - Buy a Shovel Codeforces Codeforces Round #377 (Div. 2)
441 P441 - Is your horseshoe on the other hoof? Codeforces Codeforces Round #141 (Div. 2)
442 P442 - Colorful Stones (Simplified Edition) Codeforces Codeforces Round #162 (Div. 2)
443 P443 - Shaass and Oskols Codeforces Codeforces Round #178 (Div. 2)
444 P444 - Carrot Cakes Codeforces Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2)
445 P445 - Free Ice Cream Codeforces Codeforces Round #359 (Div. 2)
446 P446 - Team Olympiad Codeforces Codeforces Round #279 (Div. 2)
447 P447 - New Password Codeforces VK Cup 2017 - Qualification 2
448 P448 - Lineland Mail Codeforces Codeforces Round #Pi (Div. 2)
449 P449 - Mahmoud and Longest Uncommon Subsequence Codeforces Codeforces Round #396 (Div. 2)
450 P450 - Oath of the Night's Watch Codeforces Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined)
451 P451 - Twins Codeforces Codeforces Round #111 (Div. 2)
452 P452 - Keyboard Codeforces Codeforces Round #271 (Div. 2)
453 P453 - The Seasonal War UVA
454 P454 - Marcus UVA
455 P455 - Battleships UVA
456 P456 - Forming Teams Codeforces Codeforces Round #133 (Div. 2)
457 P457 - Hierarchy SPOJ
458 P458 - Ordering Tasks UVA
459 P459 - Good Number Codeforces Codeforces Round #213 (Div. 2)
460 P460 - Dice Tower Codeforces Codeforces Round #139 (Div. 2)
461 P461 - Alyona and Numbers Codeforces Codeforces Round #358 (Div. 2)
462 P462 - Mountain Scenery Codeforces Codeforces Round #134 (Div. 2)
463 P463 - Help Vasilisa the Wise 2 Codeforces Codeforces Round #102 (Div. 2)
464 P464 - Chewba?ca and Number Codeforces Codeforces Round #291 (Div. 2)
465 P465 - Ksenia and Pan Scales Codeforces Codeforces Round #224 (Div. 2)
466 P466 - Launch of Collider Codeforces Codeforces Round #363 (Div. 2)
467 P467 - Polo the Penguin and Segments Codeforces Codeforces Round #177 (Div. 2)
468 P468 - IQ Test Codeforces Codeforces Round #176 (Div. 2)
469 P469 - Snow Footprints Codeforces Codeforces Round #180 (Div. 2)
470 P470 - Pipeline Codeforces Codeforces Round #176 (Div. 2)
471 P471 - Decoding Codeforces Codeforces Round #386 (Div. 2)
472 P472 - Petya and Countryside Codeforces Codeforces Beta Round #61 (Div. 2)
473 P473 - Bear and Finding Criminals Codeforces Codeforces Round #356 (Div. 2)
474 P474 - Burglar and Matches Codeforces Codeforces Beta Round #16 (Div. 2 Only)
475 P475 - Sum of Digits Codeforces Codeforces Beta Round #79 (Div. 2 Only)
476 P476 - Coins Codeforces Codeforces Beta Round #44 (Div. 2)
477 P477 - Effective Approach Codeforces Codeforces Round #140 (Div. 2)
478 P478 - Easter Eggs Codeforces Codeforces Beta Round #70 (Div. 2)
479 P479 - Localized Summing for Blurring UVA
480 P480 - Fence Codeforces Codeforces Round #211 (Div. 2)
481 P481 - Lovely Palindromes Codeforces Codeforces Round #360 (Div. 2)
482 P482 - Devu, the Dumb Guy Codeforces Codeforces Round #251 (Div. 2)
483 P483 - Summer sell-off Codeforces Codeforces Round #415 (Div. 2)
484 P484 - Colorful Field Codeforces Codeforces Beta Round #71
485 P485 - Keyboard Codeforces Codeforces Beta Round #73 (Div. 2 Only)
486 P486 - Find The Bone Codeforces Codeforces Round #408 (Div. 2)
487 P487 - Tic-Tac-Toe ( I ) SPOJ
488 P488 - Tic-Tac-Toe ( II ) SPOJ
489 P489 - Knight Moves UVA
490 P490 - King's Path Codeforces Codeforces Round #149 (Div. 2)
491 P491 - Students and Shoelaces Codeforces Codeforces Beta Round #94 (Div. 2 Only)
492 P492 - Dreamoon and WiFi Codeforces Codeforces Round #272 (Div. 2)
493 P493 - Chat Online Codeforces Codeforces Round #268 (Div. 2)
494 P494 - Olympic Medal Codeforces Codeforces Round #132 (Div. 2)
495 P495 - Filya and Homework Codeforces Codeforces Round #371 (Div. 2)
496 P496 - Inna and New Matrix of Candies Codeforces Codeforces Round #234 (Div. 2)
497 P497 - Steps Codeforces Codeforces Round #108 (Div. 2)
498 P498 - Growing Mushrooms Codeforces Codeforces Round #118 (Div. 2)
499 P499 - Continents UVA
500 P500 - Hanoi Tower Timus
501 P501 - Rankings UVA
502 P502 - Roma and Changing Signs Codeforces Codeforces Round #160 (Div. 2)
503 P503 - Bear and Strings Codeforces Codeforces Round #226 (Div. 2)
504 P504 - I.O.U. Codeforces Codeforces Round #221 (Div. 2)
505 P505 - Jeff and Periods Codeforces Codeforces Round #204 (Div. 2)
506 P506 - Meeting Codeforces Codeforces Round #103 (Div. 2)
507 P507 - Physics Practical Codeforces Codeforces Round #154 (Div. 2)
508 P508 - Kolya and Tanya Codeforces Codeforces Round #324 (Div. 2)
509 P509 - Suffix Structures Codeforces Codeforces Round #256 (Div. 2)
510 P510 - Complete the Word Codeforces Codeforces Round #372 (Div. 2)
511 P511 - Mashmokh and Tokens Codeforces Codeforces Round #240 (Div. 2)
512 P512 - Fox And Two Dots Codeforces Codeforces Round #290 (Div. 2)
513 P513 - Routine Problem Codeforces Codeforces Round #196 (Div. 2)
514 P514 - Vasya and Wrestling Codeforces Codeforces Round #281 (Div. 2)
515 P515 - Hamming Distance Sum Codeforces Codeforces Round #336 (Div. 2)
516 P516 - Wet Shark and Bishops Codeforces Codeforces Round #341 (Div. 2)
517 P517 - Kefa and Company Codeforces Codeforces Round #321 (Div. 2)
518 P518 - Treasure Hunt Codeforces Codeforces Round #482 (Div. 2)
519 P519 - Painting Eggs Codeforces Codeforces Round #173 (Div. 2)
520 P520 - Pasha Maximizes Codeforces Codeforces Round #249 (Div. 2)
521 P521 - Little Girl and Game Codeforces Codeforces Round #169 (Div. 2)
522 P522 - Art Union Codeforces Codeforces Round #241 (Div. 2)
523 P523 - Booking System Codeforces Codeforces Round #241 (Div. 2)
524 P524 - Vanya and Exams Codeforces Codeforces Round #280 (Div. 2)
525 P525 - Lumberjack Sequencing UVA
526 P526 - Coin Change UVA
527 P527 - Product UVA
528 P528 - Light, more light UVA
529 P529 - Wedding shopping UVA
530 P530 - Jumping Mario UVA
531 P531 - Is it a tree SPOJ
532 P532 - All Roads Lead Where? UVA
533 P533 - Longest path in a tree SPOJ
534 P534 - The Benefactor SPOJ
535 P535 - Prime Path SPOJ
536 P536 - A Bug’s Life SPOJ
537 P537 - Ones and zeros SPOJ
538 P538 - Tobo or not Tobo SPOJ
539 P539 - Two Buttons Codeforces Codeforces Round #295 (Div. 2)
540 P540 - Topological Sorting SPOJ
541 P541 - Pick up sticks UVA
542 P542 - Bicoloring UVA
543 P543 - Ubiquitous Religions UVA
544 P544 - Friends UVA
545 P545 - Money Matters UVA
546 P546 - DZY Loves Chemistry Codeforces Codeforces Round #254 (Div. 2)
547 P547 - Following Orders UVA
548 P548 - FOODIE SPOJ
549 P549 - Wachovia Bank SPOJ
550 P550 - Princess Farida SPOJ
551 P551 - Boxes UVA
552 P552 - XYZZY UVA
553 P553 - Page Hopping UVA
554 P554 - Cheapest way UVA
555 P555 - Number Maze UVA
556 P556 - Exchange Rates UVA
557 P557 - Highways SPOJ
558 P558 - A Node Too Far UVA
559 P559 - Wormholes UVA
560 P560 - Bus Problem Live Archive 2014 Asia - Taichung
561 P561 - Island Hopping Live Archive 2002 World Finals - Honolulu
562 P562 - Bytelandian Blingors Network SPOJ
563 P563 - Minimum Spanning Tree SPOJ
564 P564 - Play on Words SPOJ
565 P565 - John's trip UVA
566 P566 - Catenyms UVA
567 P567 - Domino piling Codeforces Codeforces Beta Round #47
568 P568 - Tram Codeforces Codeforces Beta Round #87 (Div. 2 Only)
569 P569 - Fox And Snake Codeforces Codeforces Round #290 (Div. 2)
570 P570 - Olesya and Rodion Codeforces Codeforces Round #324 (Div. 2)
571 P571 - Vasya the Hipster Codeforces Codeforces Round #322 (Div. 2)
572 P572 - Dreamoon and Stairs Codeforces Codeforces Round #272 (Div. 2)
573 P573 - MUH and Sticks Codeforces Codeforces Round #269 (Div. 2)
574 P574 - Playing with Paper Codeforces Codeforces Round #296 (Div. 2)
575 P575 - Little Pony and Crystal Mine Codeforces Codeforces Round #259 (Div. 2)
576 P576 - Professor GukiZ's Robot Codeforces Educational Codeforces Round 6
577 P577 - George and Sleep Codeforces Codeforces Round #227 (Div. 2)
578 P578 - Equidistant String Codeforces Codeforces Round #303 (Div. 2)
579 P579 - Inbox (100500) Codeforces Codeforces Round #265 (Div. 2)
580 P580 - Case of Matryoshkas Codeforces Codeforces Round #310 (Div. 1) & Codeforces Round #310 (Div. 2)
581 P581 - Eevee Codeforces MemSQL Start[c]UP 2.0 - Round 1
582 P582 - Mashmokh and Lights Codeforces Codeforces Round #240 (Div. 2)
583 P583 - OR in Matrix Codeforces Codeforces Round #277 (Div. 2)
584 P584 - Slightly Decreasing Permutations Codeforces Codeforces Round #175 (Div. 2)
585 P585 - 2Char Codeforces Codeforces Round #329 (Div. 2)
586 P586 - Elections Codeforces Codeforces Round #316 (Div. 2)
587 P587 - A and B and Compilation Errors Codeforces Codeforces Round #294 (Div. 2)
588 P588 - Mike and Fun Codeforces Codeforces Round #305 (Div. 2)
589 P589 - Tavas and Nafas Codeforces Codeforces Round #299 (Div. 2)
590 P590 - Comparing Strings Codeforces Codeforces Round #118 (Div. 2)
591 P591 - Strings of Power Codeforces Codeforces Round #188 (Div. 2)
592 P592 - ZgukistringZ Codeforces Codeforces Round #307 (Div. 2)
593 P593 - Football Codeforces Codeforces Beta Round #42 (Div. 2)
594 P594 - DNA Alignment Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1)
595 P595 - Palindromic Times Codeforces Codeforces Beta Round #83 (Div. 2 Only)
596 P596 - Lecture Codeforces Codeforces Round #284 (Div. 2)
597 P597 - Tanya and Postcard Codeforces Codeforces Round #293 (Div. 2)
598 P598 - Internet Address Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC)
599 P599 - Queries on a String Codeforces Educational Codeforces Round 1
600 P600 - Quasi Binary Codeforces Codeforces Round #300
601 P601 - Phone numbers Codeforces Codeforces Beta Round #25 (Div. 2 Only)
602 P602 - Set of Strings Codeforces Codeforces Round #302 (Div. 2)
603 P603 - The Text Splitting Codeforces Educational Codeforces Round 4
604 P604 - Laurenty and Shop Codeforces Codeforces Round #325 (Div. 2)
605 P605 - Watchmen Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2)
606 P606 - Amr and The Large Array Codeforces Codeforces Round #312 (Div. 2)
607 P607 - Equivalent Strings Codeforces Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2)