#include<bits/stdc++.h>using namespace std;const long long mod = 998244353;typedef const long long ll;vector<long long>p;long long inv(long long x,long long y)//快速幂求逆元模板(以乘代除){ long long r=1; while(y>0) { if(y&1) …
求N以内的真分数个数 For example, if N = 5, the number of possible irreducible fractions are 11 as below. 0 1/5 1/4 1/3 2/5 1/2 3/5 2/3 3/4 4/5 1 Input Output 代码: #include <iostream> #include <cstdio> using namespace std; #define _DEBUG 0 #define MAX 10…
求集合里元素的个数 输出最大的个数是多少 Sample Input41 23 45 61 641 23 45 67 8 Sample Output42 # include <iostream> # include <cstdio> # include <cstring> # include <algorithm> # include <cmath> # include <queue> # define LL long long usi…
题目链接:pid=1084">点击打开链接 寒假安排 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 128000/64000 KB (Java/Others) SubmitStatistic Next Problem Problem Description 寒假又快要到了,只是对于lzx来说,头疼的事又来了,由于众多的后宫都指望着能和lzx约会呢,lzx得安排好计划才行. 如果lzx的后宫团有n个人.寒假共同拥有m天,而每天仅仅能…
A. Olympiad time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output The recent All-Berland Olympiad in Informatics featured n participants with each scoring a certain amount of points. As the head…