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- Unstable String Sort2100Codeforcesdata structuresdfs and similardsugraphs
- Unusual Queries2520CodeChef
- Unusual Queries2561CodeChef
- Upside Down Dijkstra2200Codeforcesdfs and similar
- Vaibhav and Ministers2585CodeChef
- Valentine Vex2429CodeChef
- Valera and Fools2200Codeforcesdfs and similardpgraphsshortest paths
- Valera and Queries2200Codeforcesbinary searchdata structures
- Valera and Swaps2100Codeforcesconstructive algorithmsdsugraphsimplementation
- Valid Bitonic Permutations2200Codeforcescombinatoricsdpimplementationmath
- Valid Sets2100Codeforcesdfs and similardpmathtrees
- Valley Avoidance2451CodeChef
- Vanya and Balloons2300Codeforcesbinary searchbrute forcedpimplementation
- Vanya and Brackets2100Codeforcesbrute forcedpexpression parsinggreedy
- Vanya and Treasure2300Codeforcesdata structuresdpgraphsshortest paths
- Vasily the Bear and Beautiful Strings2100Codeforcescombinatoricsmathnumber theory
- Vasya and Beautiful Arrays2100Codeforcesbrute forcedpnumber theory
- Vasya and Magic Matrix2300Codeforcesdpmathprobabilities
- Vasya and Templates2300Codeforcesgreedyimplementationstrings
- Vasya's Function2100Codeforcesbinary searchimplementationmath
- Vika and Bonuses2200Codeforcesbinary searchbrute forcemathternary search
- Vika and Segments2300Codeforcesconstructive algorithmsdata structuresgeometrytwo pointers
- Village (Minimum)2100Codeforces*specialdpgreedytrees
- Vitaly and Advanced Useless Algorithms2200Codeforcesdpgreedyimplementation
- Vittorio Plays with LEGO Bricks2200Codeforcesdpgeometry
- Vlad and Avoiding X2200Codeforcesbitmasksbrute forcedfs and similardp
- Vlad and the Nice Paths (easy version)2100Codeforcescombinatoricsdpmath
- Vlad and the Nice Paths (hard version)2200Codeforcesbinary searchcombinatoricsdata structuresdp
- Vlad, Misha and Two Arrays2100Codeforcesbrute forcecombinatoricsdfs and similardivide and conquer
- Vladik and Favorite Game2100Codeforcesconstructive algorithmsdfs and similargraphsinteractive
- Vladik and cards2200Codeforcesbinary searchbitmasksbrute forcedp
- Vladik and chat2200Codeforcesbrute forceconstructive algorithmsdpimplementation
- Voting (Easy Version)2300Codeforcesdata structuresdpgreedy
- Vulnerable Kerbals2300Codeforcesconstructive algorithmsdpgraphsmath
- Wall2401CodeChef
- Wall Bars2300Codeforcesdp
- Wanderer2526CodeChef
- Warrior and Archer2300Codeforcesgames
- Watching Fireworks is Fun2100Codeforcesdata structuresdpmath
- Water Balance2100Codeforcesdata structuresgeometrygreedy
- Water Level2200Codeforcesbrute forcegraphsgreedyimplementation
- Water Tree2100Codeforcesdata structuresdfs and similargraphstrees
- Ways to Work2526CodeChef
- We Need More Bosses2100Codeforcesdfs and similargraphstrees
- Weak in the Middle2476CodeChef
- Weasel does Xor on Tree2508CodeChef
- Weights Distributing2100Codeforcesbrute forcegraphsgreedyshortest paths
- Weights Division (hard version)2200Codeforcesbinary searchdfs and similargreedysortings
- Weird journey2100Codeforcescombinatoricsconstructive algorithmsdfs and similardsu
- Well played!2100Codeforcesgreedysortings
- What Is This, a Crossover Episode2486CodeChef
- Where the Wild Things Are2592CodeChef
- White, Black and White Again2100Codeforcescombinatoricsnumber theory
- Wi-Fi2100Codeforcesdata structuresdpgreedy
- Widget Library2300Codeforcesdpexpression parsinggraphsimplementation
- Wilbur and Trees2300Codeforcesdpmathprobabilitiessortings
- Wine Factory (Easy Version)2300Codeforcesdata structuresgreedy
- Wingardium Leviosa2569CodeChef
- Winter is here2200Codeforcescombinatoricsdpmathnumber theory
- Wizard's Tour2300Codeforcesconstructive algorithmsdfs and similargraphs