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题目链接：http://codeforces.com/problemset/problem/712/DD. Memory and Scorestime limit per test2 secondsmemory limit per test512 megabytesinputstandard inputoutputstandard outputMemory and his friend Lexa ...

题目链接：http://codeforces.com/contest/965/problem/DA lot of frogs want to cross a river. A river is w units width, but frogs can only jump l units long, where l<w. Frogs can also jump on lengths short...