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Super palindrome 题目描述 You are given a string that is consisted of lowercase English alphabet. You are supposed to change it into a super palindrome st 阅读全文
posted @ 2019-04-05 15:08
llke
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Hakase and Nano 题目描述 Hakase and Nano are playing an ancient pebble game (pebble is a kind of rock). There are n packs of pebbles, and the i th pack co 阅读全文
posted @ 2019-04-05 15:03
llke
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Master of GCD 题目描述 Hakase has n numbers in a line. At fi rst, they are all equal to 1. Besides, Hakase is interested in primes. She will choose a cont 阅读全文
posted @ 2019-04-05 14:58
llke
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