A. CME 题目链接:https://codeforces.com/contest/1241/problem/A 题意: 你有 N 根火柴 , 多少根火柴就可以组成多大的数(如 三根火柴可以表示 3), 现在要求你用火柴组成任意三个数 A , B , C 使得 A + B = C 关系成立 如果无论怎么组都无法使等式成立 , 则你可以额外购入 X 根火柴来重新组数使得关系成立 , 求 X 的最小值 分析: 签到题. 特判 N = 2 , X = 2 当 N > 2 时不难发现当 N 为偶数时是…

https://codeforces.com/contest/1241/problem/C You are an environmental activist at heart but the reality is harsh and you are just a cashier in a cinema. But you can still do something! You have n tickets to sell. The price of the i-th ticket is pi.…

链接: https://codeforces.com/contest/1241/problem/D 题意: You are given a sequence a1,a2,-,an, consisting of integers. You can apply the following operation to this sequence: choose some integer x and move all elements equal to x either to the beginning,…

链接: https://codeforces.com/contest/1241/problem/B 题意: You are given two strings of equal length s and t consisting of lowercase Latin letters. You may perform any number (possibly, zero) operations on these strings. During each operation you choose t…

链接: https://codeforces.com/contest/1241/problem/C 题意: You are an environmental activist at heart but the reality is harsh and you are just a cashier in a cinema. But you can still do something! You have n tickets to sell. The price of the i-th ticket…

链接: https://codeforces.com/contest/1241/problem/A 题意: Let's denote correct match equation (we will denote it as CME) an equation \($a + b = c$\) there all integers \($a$\), \($b$\) and \($c$\) are greater than zero. For example, equations \($2 + 2 =…

Virtual participate 的,D题不会做,打了1:30就打不动了,过了ABCE. A - CME 题意:? 题解:? void test_case() { int n; scanf("%d", &n); if(n == 2) puts("2"); else printf("%d\n", n & 1); } B - Strings Equalization 题意:给两个等长的字符串,每次可以把一个字母赋值给它前一个和后…

A..B略 C 对当前的值排序,再二分答案,然后对于(i%x==0 && i%y==0)放入大的,再放其他的贪心解决即可. #include<iostream> #include<stdio.h> #include<string.h> #include<algorithm> #include<map> #define LL long long #define lson rt<<1 #define rson rt<…

Codeforces Round #366 (Div. 2) A I hate that I love that I hate it水题 #I hate that I love that I hate it n = int(raw_input()) s = "" a = ["I hate that ","I love that ", "I hate it","I love it"] for i in ran…

Codeforces Round #354 (Div. 2) Problems     # Name     A Nicholas and Permutation standard input/output 1 s, 256 MB    x3384 B Pyramid of Glasses standard input/output 1 s, 256 MB    x1462 C Vasya and String standard input/output 1 s, 256 MB    x1393…