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525DArthur and Walls2400constructive algorithms, data structures, graphs525EAnya and Cubes2100binary search, bitmasks, brute force534AExam1100constructive algorithms, implementation, math534BCovered Path1400dp, greedy, math534CPolycarpus' Dice1600math534DHandshakes1900binary search, constructive algorithms, data structures534EBerland Local Positioning System2400constructive algorithms, greedy, hashing534FSimplified Nonogram2400bitmasks, dp, hashing543AWriting Code1800dp543BDestroying Roads2100constructive algorithms, graphs, shortest paths543DRoad Improvement2300dp, trees546BSoldier and Badges1200brute force, greedy, implementation546DSoldier and Number Game1700constructive algorithms, dp, math546ESoldier and Traveling2100flows, graphs, math547AMike and Frog2200brute force, greedy, implementation547BMike and Feet1900binary search, data structures, dp547CMike and Foam2300bitmasks, combinatorics, dp54CFirst Digit Law2000dp, math, probabilities54DWriting a Song2100brute force, dp, strings552AVanya and Table1000implementation, math552BVanya and Books1200implementation, math552CVanya and Scales1900brute force, dp, greedy552DVanya and Triangles1900brute force, combinatorics, data structures552EVanya and Brackets2100brute force, dp, expression parsing567CGeometric Progression1700binary search, data structures, dp567DOne-Dimensional Battle Ships1700binary search, data structures, greedy567EPresident and Roads2200dfs and similar, graphs, hashing567FMausoleum2400dp572BOrder Book1300data structures, greedy, implementation573ABear and Poker1300implementation, math, number theory573BBear and Blocks1600binary search, data structures, dp573CBear and Drawing2300constructive algorithms, dfs and similar, trees576AVasya and Petya's Game1500math, number theory576BInvariance of Tree2100constructive algorithms, dfs and similar, greedy576CPoints on Plane2100constructive algorithms, divide and conquer, geometry577BModulo Sum1900combinatorics, data structures, dp582AGCD Table1700constructive algorithms, greedy, number theory582BOnce Again...1900constructive algorithms, dp, matrices583BRobot's Task1200greedy, implementation587ADuff and Weight Lifting1500greedy587BDuff in Beach2100dp587CDuff in the Army2200data structures, trees58AChat room1000greedy, strings58BCoins1300greedy58DCalendar2000greedy, strings58EExpression2400dp592BThe Monster and the Squirrel1100math592CThe Big Race1800math592DSuper M2200dfs and similar, dp, graphs596BWilbur and Array1100greedy, implementation
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