Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
71880 编程星球01 19灯的编号 C++ Accepted 1 MS 292 KB 372 2024-04-27 18:00:40

Tests(10/10):


Code:

#include<iostream> using namespace std; int main(){ int i,j,n,m,k,max = 0; int arr[5000]= {0,0,0,0,0,0,0,0,0,0,0}; cin >>n >> m; for(i = 2;i <= m; i++){ for(j = 1; j<= n ;j++){ if((j*i)<= n)arr[j*i]= !arr[j*i]; } } cout << 1; for(i = 2;i <= n; i++){ if(arr[i] == 0) cout <<","<<i; } cout << endl; return 0; }