霜雪千年

摘要： Description Given a positive integer N, your task is to calculate the sum of the positive integers less than N which are not coprime to N. A is said t 阅读全文

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摘要： Description Most crossword puzzle fans are used to anagrams--groups of words with the same letters in different orders--for example OPTS, SPOT, STOP, 阅读全文

摘要： Description Andy, 8, has a dream - he wants to produce his very own dictionary. This is not an easy task for him, as the number of words that he knows 阅读全文

摘要： Description Raju and Meena love to play with Marbles. They have got a lot of marbles with numbers written on them. At the beginning, Raju would place 阅读全文

摘要： 物品分堆 物品分堆 Time Limit: 2000/1000ms (Java/Others) Time Limit: 2000/1000ms (Java/Others) Problem Description: 有n个物品，物品i的重量为Wi，现在想要把这个n个物品分类两堆，求最小的重量差（物品不 阅读全文

摘要： Description Given A,B,C, You should quickly calculate the result of A^B mod C. (1<=A,B,C<2^63). Given A,B,C, You should quickly calculate the result o 阅读全文

摘要： Description Determine the shortest path between the specified vertices in the graph given in the input data.Hint: You can use Dijkstra's algorithm.Hin 阅读全文

摘要： Description Given n, a positive integer, how many positive integers less than n are relatively prime to n? Two integers a and b are relatively prime i 阅读全文

摘要： Description Professor Ibrahim has prepared the final homework for his algorithm’s class. He asked his students to implement the Posterization Image Fi 阅读全文