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A题 给出n个数，问这n个数能不能分成奇数个连续的长度为奇数并且首尾均为奇数的序列 Codeforces849A 题解传送门 代码 1 #include <bits/stdc++.h> 2 #define ll long long 3 #define ull unsigned long long 4 阅读全文
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Count Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1187 Accepted Submission(s): 433 Problem De 阅读全文
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C. Party Lemonade C. Party Lemonade A New Year party is not a New Year party without lemonade! As usual, you are expecting a lot of guests, and buying 阅读全文
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扫雷 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 4861 Accepted Submission(s): 1316 Problem Desc 阅读全文
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B. Divisiblity of Differences You are given a multiset of n integers. You should select exactly k of them in a such way that the difference between an 阅读全文
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B. Marvolo Gaunt's Ring Professor Dumbledore is helping Harry destroy the Horcruxes. He went to Gaunt Shack as he suspected a Horcrux to be present th 阅读全文
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B. Maximum of Maximums of Minimums You are given an array a1, a2, ..., an consisting of n integers, and an integer k. You have to split the array into 阅读全文
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A. Odds and Ends A. Odds and Ends Where do odds begin, and where do they end? Where does hope emerge, and will they ever break? Given an integer seque 阅读全文