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Natasha's favourite numbers are 𝑛n and 11, and Sasha's favourite numbers are 𝑚m and −1−1. One day Natasha and Sasha met and wrote down every possibl 阅读全文
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An addition chain for n is an integer sequence <a0, a1,a2,...,am="">with the following four properties: a0 = 1 am = n a0 < a1 < a2 < ... < am-1 < am F 阅读全文
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CIRU - The area of the union of circles no tags no tags You are given N circles and expected to calculate the area of the union of the circles ! Input 阅读全文
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J. Judging the Trick time limit per test 2.0 s memory limit per test 512 MB input standard input output standard output J. Judging the Trick time limi 阅读全文
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Run Away Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 10634 Accepted: 3177 Description One of the traps we will encounter in the Pyramid 阅读全文
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A Star not a Tree? Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 9298 Accepted: 4022 Description Luke wants to upgrade his home computer 阅读全文