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Network Flow problems
Problem Name Online Judge Year Contest Difficulty Level
1 Ultra-Fast Mathematician Categories Codeforces Codeforces Beta Round #57 (Div. 2) 1
2 Fast Maximum Flow Categories SPOJ 1
3 Alphacode Categories SPOJ 1
4 Dungeon of Death Categories SPOJ 1
5 Remember the A La Mode! Categories Live Archive 2006 World Finals - San Antonio 1
6 Potholers Categories SPOJ 1
7 Drainage Ditches Categories PKU 1
8 Dangerous Tunnels Categories Live Archive 2008 Asia - Taipei 1
9 Power Transmission Categories UVA 1
10 Total Flow Categories SPOJ 1
11 Fast Maximum Matching Categories SPOJ 1
12 Taxi Categories SPOJ 1
13 Internet Bandwidth Categories UVA 1
14 Data Flow Categories UVA 2
15 Crimewave Categories UVA 2
16 Nuts and Bolts Categories UVA 2
17 It Can Be Arranged Categories Live Archive 2013 Europe - Southwestern 2
18 The dog task Categories UVA 2
19 "Shortest" pair of paths Categories Live Archive 2006 Europe - Southeastern 2
20 Smart Network Administrator Categories SPOJ 2
21 A Plug for UNIX Categories UVA 2
22 Software Allocation Categories UVA 2
23 The Problem with the Problem Setter Categories UVA 2
24 Coconuts Categories SPOJ 2
25 Going Home Categories TJU 2
26 Sabotage Categories UVA 2
27 Factors and Multiples Categories UVA 2
28 Entrapment Categories SPOJ 2
29 Internet Bandwidth Categories Live Archive 2000 World Finals - Orlando 2
30 Cable TV Network Categories Live Archive 2004 Europe - Southeastern 2
31 Muddy Fields Categories PKU 2
32 Cable TV Network Categories SPOJ 2
33 Intergalactic Map Categories SPOJ 2
34 Optimal Marks Categories SPOJ 2
35 Handball Categories UVA 2
36 Course Categories TJU 2
37 Muddy Fields Categories SPOJ 2
38 Dijkstra, Dijkstra. Categories UVA 2
39 Gopher II Categories UVA 2
40 Baby Categories SPOJ 2
41 Train TimeTable Categories SPOJ 2
42 Destroying the bus stations Categories Live Archive 2008 Asia - Beijing 2
43 Greedy island Categories SPOJ 2
44 My T-shirt suits me Categories UVA 2
45 Route Redundancy Categories Live Archive 2011 North America - Greater NY 2
46 The Grand Dinner Categories UVA 2
47 Angels and Devils Categories SPOJ 2
48 Angry Programmer Categories UVA 2
49 Selfish Cities Categories SPOJ 2
50 Safety Grade Categories Live Archive 2011 Europe - Southeastern 3
51 Disjoint Paths Categories SPOJ 3
52 Weird Fence Categories UVA 3
53 Down Went The Titanic Categories UVA 3
54 Councilling Categories UVA 3
55 Gopher Strategy Categories UVA 3
56 Monkeys in the Emei Mountain Categories UVA 3
57 Machine Schedule Categories UVA 3
58 "Shortest" pair of paths Categories SPOJ 3
59 Travelling tours Categories SPOJ 3
60 Euler Circuit Categories UVA 3
61 SAM I AM Categories UVA 3
62 Matrix Decompressing Categories UVA 3
63 Antenna Placement Categories UVA 3
64 Steady Cow Assignment Categories SPOJ 3
65 Pahom on Water Categories Live Archive 2011 South Pacific 3
66 Maximum Profit Categories SPOJ 3
67 Crime Wave - The Sequel Categories UVA 3
68 Clever Naming Patterns Categories UVA 3
69 Kill the Werewolf Categories Live Archive 2016 Latin America 3
70 March of the Penguins Categories UVA 3
71 Guardian of Decency Categories UVA 3
72 MobiZone vs VinaGone Categories SPOJ 3
73 Collectors Problem Categories UVA 3
74 Divisibility Relation Categories SPOJ 3
75 A Plug for UNIX Categories TJU 3
76 Sorting Slides Categories UVA 3
77 Buy one, get the rest free Categories UVA 3
78 Bob Laptop Woolmer and Eddie Desktop Barlow Categories UVA 4
79 The Black Riders Categories SPOJ 4
80 Warehouse Categories UVA 4
81 Great Wall of China Categories UVA 4
82 Gavin's Promise Categories TJU 4
83 Gas Wars Categories SPOJ 4
84 Rooks Categories UVA 4
85 Taxi Cab Scheme Categories UVA 4
86 Golden Tiger Claw Categories UVA 4
87 Bomb, Divide and Conquer Categories UVA 4
88 Cat vs. Dog Categories UVA 4
89 Air Raid Categories UVA 4
90 Necklace Categories UVA 5
91 Leapin' Lizards Categories TJU 5
92 Array and Operations Categories Codeforces Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) 5
93 Gourmet and Banquet Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 5
94 All Pairs Maximum Flow Categories UVA 5
95 Treasure Hunting Categories TJU 5
96 Gridland Airports Categories UVA 5
97 Elegant Strings Categories UVA 5
98 Mysterious Mountain Categories UVA 5
99 Cable TV Network Categories TJU 5
100 Maximizing the ICPC Categories UVA 5
101 Suiting Weavers Categories SPOJ 5
102 Ciel and Duel Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 5
103 Component Placement Categories UVA 5
104 Wukong and Tang Monk Categories TJU 5
105 Barber of the Army of Mages Categories Timus 5
106 Soldier and Traveling Categories Codeforces Codeforces Round #304 (Div. 2) 5
107 Winger Trial Categories UVA 5
108 Acme Corporation Categories UVA 5
109 Faster Processing Feasibility Categories UVA 6
110 Fox And Dinner Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 6
111 Thieves Categories TJU 6
112 Shogi Tournament Categories UVA 6
113 Flawed Flow Categories Codeforces Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) 6
114 Mining Station on the Sea Categories Live Archive 2008 Asia - Harbin 6
115 Delivery Bears Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 6
116 Its all about the Bandwidth Categories UVA 6
117 Military patrol Categories SPOJ 6
118 Non-Secret Cypher Categories Codeforces Codeforces Round #120 (Div. 2) 6
119 It Can Be Arranged Categories UVA 7
120 Task Schedule Categories TJU 7
121 Budget Categories TJU 7
122 Delivering Goods Categories Live Archive 2016 North America - North Central NA & North America - Rocky Mountain 7
123 Binary Tree on Plane Categories Codeforces Codeforces Round #170 (Div. 1) 7
124 Recruiter's Problem Categories UVA 7
125 Build String Categories Codeforces Codeforces Round #147 (Div. 2) 7
126 Machine Programming Categories Codeforces VK Cup 2012 Round 3 8
127 Gosha is hunting Categories Codeforces Codeforces Round #381 (Div. 1) 8
128 Petya and Pipes Categories Codeforces Codeforces Round #212 (Div. 2) 8
129 Tidying Up Categories Codeforces ABBYY Cup 3.0 8
130 Tidying Up Categories Codeforces ABBYY Cup 3.0 8
131 A New Graph Game Categories TJU 8
132 k-Maximum Subsequence Sum Categories Codeforces Codeforces Round #172 (Div. 1) 8
133 HS BDC Categories TJU 8
134 Subway Timing Categories UVA 8
135 Biologist Categories Codeforces Codeforces Round #185 (Div. 1) 9
136 Evacuation Categories Codeforces Codeforces Beta Round #70 (Div. 2) 9
137 Seikimatsu Occult Tonneru Categories TJU 9
138 Judgment Day Categories UVA 9
139 Bangladesh Premier League Categories UVA 9
140 Nanami's Power Plant Categories Codeforces Codeforces Round #248 (Div. 1) 9
141 Bear and Fair Set Categories Codeforces Educational Codeforces Round 8 9
142 Buying Sets Categories Codeforces Codeforces Beta Round #80 (Div. 1 Only) 9
143 Scaygerboss Categories Codeforces Rockethon 2015 9
144 Scaygerboss Categories Codeforces Rockethon 2015 9
145 Deciphering Categories Codeforces Testing Round #11 9
146 Bits of merry old England Categories Codeforces Codeforces Beta Round #96 (Div. 1) 9
147 Pumping Stations Categories Codeforces Codeforces Round #200 (Div. 1) 9
148 New Year and Forgotten Tree Categories Codeforces Good Bye 2015 10
149 Planar Graph Categories Codeforces Codeforces Round #138 (Div. 1) 10
150 Privatization Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 10
151 ALT Categories Codeforces Codeforces Round #406 (Div. 1) 10
152 Max Flow Minimum Cost Categories SPOJ 10
153 Shake It! Categories Codeforces Codeforces Round #431 (Div. 1) 10
154 Flow Optimality Categories Codeforces MemSQL Start[c]UP 2.0 - Round 2 10
155 Pills Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) 10
156 Chess Championship Categories Codeforces Codeforces Round #382 (Div. 1) 10
157 Critical Network Lines Categories A2 Online Judge 10
158 Captain America Categories Codeforces Codeforces Round #366 (Div. 1) 10
159 World Evil Categories Codeforces Codeforces Beta Round #58 10