Problem Posts
Choose a problem tutorial from one of the following online judging systemsOnline Judges:
CodeForces
45 solutions
| Owner | Problem | Title | Solutions | Tags | Description |
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| CodeForces | 1A | Theatre Square |
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| CodeForces | 4A | Watermelon |
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| CodeForces | 25A | IQ test |
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| CodeForces | 50A | Domino piling |
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| CodeForces | 58A | Chat room |
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| CodeForces | 59A | Word |
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| CodeForces | 69A | Young Physicist |
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| CodeForces | 71A | Way Too Long Words |
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| CodeForces | 96A | Football |
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| CodeForces | 112A | Petya and Strings |
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| CodeForces | 118A | String Task |
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| CodeForces | 131A | cAPS lOCK |
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| CodeForces | 158A | Next Round |
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| CodeForces | 189A | Cut Ribbon |
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| CodeForces | 230B | T-primes |
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| CodeForces | 231A | Team |
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| CodeForces | 263A | Beautiful Matrix |
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| CodeForces | 281A | Word Capitalization |
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| CodeForces | 282A | Bit++ |
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| CodeForces | 318A | Even Odds |
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| CodeForces | 339A | Helpful Maths |
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| CodeForces | 339B | Xenia and Ringroad |
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| CodeForces | 455A | Boredom |
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| CodeForces | 459B | Pashmak and Flowers |
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| CodeForces | 474B | Worms |
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| CodeForces | 479A | Expression |
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| CodeForces | 486A | Calculating Function |
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| CodeForces | 489B | BerSU Ball |
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| CodeForces | 489C | Given Length and Sum of Digits... |
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| CodeForces | 492B | Vanya and Lanterns |
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| CodeForces | 500A | New Year Transportation |
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| CodeForces | 507B | Amr and Pins |
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| CodeForces | 513A | Game |
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| CodeForces | 520B | Two Buttons |
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| CodeForces | 550A | Two Substrings |
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| CodeForces | 580A | Kefa and First Steps |
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| CodeForces | 742A | Arpa's hard exam and Mehrdad's naive cheat |
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| CodeForces | 766B | Mahmoud and a Triangle |
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| CodeForces | 935A | Fafa and his Company |
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| CodeForces | 977B | Two-gram |
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| CodeForces | 977D | Divide by three, multiply by two |
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| CodeForces | 996A | Hit the Lottery |
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| CodeForces | 1097A | Gennady and a Card Game |
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| CodeForces | 1108A | Two distinct points |
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| CodeForces | 1154A | Restoring Three Numbers |
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UVa Online Judge
9 solutions
| Owner | Problem ID | Title | Solutions | Tags | Description |
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| UVa | 230 | Borrowers |
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| UVa | 543 | Goldbach's Conjecture |
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| UVa | 900 | Brick Wall Patterns |
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| UVa | 10047 | The Monocycle |
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| UVa | 10140 | Prime Distance |
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| UVa | 10165 | Stone Game |
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| UVa | 10338 | Mischievous Children |
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| UVa | 10394 | Twin Primes |
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| UVa | 10892 | LCM Cardinality |
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