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改段求点(区间更新, 单点求值) 用一个数组 d 存储目标数组 a 中相邻元素的差值, 即 i > 1 时, d[i] = a[i] - a[i - 1] ; i == 1 时, d[i] = a[i] . 那么有 a[i] = d[1] + ... + d[i] .若要将 a 数组区间 [l, r 阅读全文
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原题如下： Priest John's Busiest Day Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 12162 Accepted: 4138 Special Judge Description John is the 阅读全文
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原题如下： Popular Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 40746 Accepted: 16574 Description Every cow's dream is to become the mos 阅读全文
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原题如下： Cutting Game Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 5721 Accepted: 2083 Description Urej loves to play various types of dull 阅读全文
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原题如下： Georgia and Bob Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 12712 Accepted: 4262 Description Georgia and Bob decide to play a sel 阅读全文
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原题如下： Euclid's Game Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10832 Accepted: 4426 Description Two players, Stan and Ollie, play, sta 阅读全文
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原题如下： A Funny Game Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7108 Accepted: 4464 Description Alice and Bob decide to play a funny gam 阅读全文
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原题如下： Suppose that P1 is an infinite-height prism whose axis is parallel to the z-axis, and P2 is also an infinite-height prism whose axis is parallel 阅读全文
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原题如下： Beauty Contest Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 42961 Accepted: 13307 Description Bessie, Farmer John's prize cow, has 阅读全文
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原题如下： Coneology Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 4937 Accepted: 1086 Description A student named Round Square loved to play 阅读全文