lesfhappy的博客

1.素数表a[i]==0则i为素数，n为所需素数的范围# include<iostream># include<cstring>using namespace std;int a[n];void su (){ int i; memset(a,0,sizeof(a)); for(i=2;i<n;i++){ if (a[i]==0){ int bei=2; wh...