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题目链接：http://codeforces.com/contest/1037/problem/A A. Packets time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have nn coins, e...

题目链接：http://codeforces.com/contest/1028/problem/B B. Unnatural Conditions time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Let s(x...

题目链接：http://codeforces.com/contest/1040/problem/B B. Shashlik Cooking time limit per test 1 second memory limit per test 512 megabytes input standard input output standard output Long story ...