Codeforces Round #470
A.Protect Sheep
Codeforces Round #470
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本來大晚上的不準備打的。。。後來打完遊戲發現還一個小時。然後就涼了 A 簽到題。 除了WS二連的No,統統填上D Yes。 C 開的第二道題,過得人相對其他的多,不知道他們是不是各種特判過得。。。。 題意是:給兩個序列,A,B; A是每天新增的雪堆的數,B是每天所有雪堆要減少的數
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