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Problem list problems
Problem Name Online Judge Contest Difficulty Level
1 Hajj-e-Akbar Categories UVA 1
2 A Special "Happy Birthday" Song!!! Categories UVA 1
3 Pizza Cutting Categories UVA 1
4 Puzzles Categories Codeforces Codeforces Round #196 (Div. 2) 1
5 Factorial Frequencies Categories UVA 1
6 Minesweeper Categories UVA 1
7 Humble Numbers Categories UVA 1
8 Mother bear Categories UVA 1
9 Combination Lock Categories UVA 1
10 Ray Through Glasses Categories UVA 1
11 To Carry or not to Carry Categories UVA 1
12 Parenthesis Balance I Categories URI 1
13 Bender B. Rodríguez Problem Categories UVA 1
14 Prime Distance Categories UVA 1
15 T-primes Categories Codeforces Codeforces Round #142 (Div. 2) 1
16 Theatre Square Categories Codeforces Codeforces Beta Round #1 1
17 Prime Frequency Categories UVA 1
18 Cows and Cars Categories UVA 1
19 Oil Deposits Categories UVA 1
20 WERTYU Categories UVA 1
21 Google is Feeling Lucky Categories UVA 1
22 Buy a Shovel Categories Codeforces Codeforces Round #377 (Div. 2) 1
23 Maximum GCD Categories UVA 1
24 Big Mod Categories UVA 1
25 Leap Year or Not Leap Year and ... Categories UVA 1
26 Palindromes Categories UVA 1
27 Ant on a Chessboard Categories UVA 1
28 Division of Nlogonia Categories UVA 1
29 How Many Fibs? Categories UVA 1
30 Back to High School Physics Categories UVA 1
31 Zeros and Ones Categories UVA 1
32 Goldbach's Conjecture Categories UVA 1
33 Steps Categories UVA 1
34 Soldier and Badges Categories Codeforces Codeforces Round #304 (Div. 2) 1
35 Big Number of Teams will Solve This Categories UVA 1
36 I Can Guess the Data Structure! Categories UVA 1
37 Perfection Categories UVA 1
38 Horror Dash Categories UVA 1
39 Triangle Counting Categories UVA 1
40 Count the factors Categories UVA 1
41 Hardest Problem Ever (Easy) Categories UVA 1
42 Fake NP Categories Codeforces Codeforces Round #411 (Div. 2) 1
43 Throwing cards away II Categories UVA 1
44 Common Permutation Categories UVA 1
45 Cost Cutting Categories UVA 1
46 Credit Check Categories UVA 1
47 The Snail Categories UVA 1
48 How Many Points of Intersection? Categories UVA 1
49 A and B and Team Training Categories Codeforces Codeforces Round #294 (Div. 2) 1
50 Watermelon Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
51 Triangle Wave Categories UVA 1
52 Helpful Maths Categories Codeforces Codeforces Round #197 (Div. 2) 1
53 ID Codes Categories UVA 1
54 The 3n + 1 problem Categories UVA 1
55 Jumping Mario Categories UVA 1
56 Combinations Categories UVA 1
57 Hamster flight Categories SPOJ 1
58 Fermat vs. Pythagoras Categories UVA 1
59 Worms Categories Codeforces Codeforces Round #271 (Div. 2) 1
60 The number of positions Categories Codeforces Codeforces Beta Round #92 (Div. 2 Only) 1
61 Polygon Inside A Circle Categories UVA 1
62 Guessing Game Categories UVA 1
63 Save Setu Categories UVA 1
64 Two Buttons Categories Codeforces Codeforces Round #295 (Div. 2) 1
65 Greedy Gift Givers Categories UVA 1
66 CD Categories UVA 1
67 Digit Counting Categories UVA 1
68 500! Categories UVA 1
69 Light, more light Categories UVA 1
70 Hello World! Categories UVA 1
71 Hardwood Species Categories UVA 1
72 Back to Intermediate Math Categories UVA 1
73 Secret Research Categories UVA 1
74 Parentheses Balance Categories UVA 1
75 Divisors Categories UVA 1
76 Twin Primes Categories UVA 1
77 Bit++ Categories Codeforces Codeforces Round #173 (Div. 2) 1
78 A Node Too Far Categories UVA 1
79 Periodic Strings Categories UVA 1
80 Airplane Categories UVA 2
81 18,000 Seconds Remaining Categories UVA 2
82 The Last Non-zero Digit. Categories UVA 2
83 Longest Word Categories UVA 2
84 Divide by three, multiply by two Categories Codeforces Codeforces Round #479 (Div. 3) 2
85 Spanning Subtree Categories UVA 2
86 Factoring Large Numbers Categories UVA 2
87 Vasya and Multisets Categories Codeforces Educational Codeforces Round 51 (Rated for Div. 2) 2
88 Rock, Scissors, Paper Categories UVA 2
89 Coconuts, Revisited Categories UVA 2
90 Anagrams Categories UVA 2
91 Digits Categories UVA 2
92 Bubble Sort Categories UVA 2
93 Bachelor Arithmetic Categories UVA 2
94 Snakes and Ladders Categories UVA 2
95 Magic square palindromes. Categories UVA 2
96 Laser Sculpture Categories UVA 2
97 Determine the Shape Categories UVA 3
98 Knights of a Polygonal Table Categories Codeforces Codeforces Round #488 by NEAR (Div. 2) 3
99 Scrolling Sign Categories UVA 3
100 Chessboard Categories UVA 3