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