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