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http://codeforces.com/contest/1029/problem/C You are given nn segments on a number line; each endpoint of every segment has integer coordinates. Some 阅读全文
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http://codeforces.com/contest/1066/problem/D Maksim has nn objects and mm boxes, each box has size exactly kk. Objects are numbered from 11 to nn in o 阅读全文
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http://codeforces.com/contest/1066/problem/C You have got a shelf and want to put some books on it. You are given qq queries of three types: L idid — 阅读全文
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http://codeforces.com/contest/1066/problem/A Vova plans to go to the conference by train. Initially, the train is at the point 11 and the destination 阅读全文
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http://poj.org/problem?id=2240 Description Arbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into m 阅读全文
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http://poj.org/problem?id=3259 Description While exploring his many farms, Farmer John has discovered a number of amazing wormholes. A wormhole is ver 阅读全文
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http://poj.org/problem?id=3276 Description Farmer John has arranged his N (1 ≤ N ≤ 5,000) cows in a row and many of them are facing forward, like good 阅读全文
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http://poj.org/problem?id=1004 Description Larry graduated this year and finally has a job. He's making a lot of money, but somehow never seems to hav 阅读全文
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https://pintia.cn/problem-sets/994805342720868352/problems/994805451374313472 The magic shop in Mars is offering some magic coupons. Each coupon has a 阅读全文
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http://poj.org/problem?id=3320 Description Jessica's a very lovely girl wooed by lots of boys. Recently she has a problem. The final exam is coming, y 阅读全文