为什么全都紫了？

Cat_Jack @ 2024-08-08 14:45:47

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,k,a = 0,b = 0,za = 0,zb = 0;
    double ansa = za/a,ansb = zb/b;
    cin>>n>>k;
    for (int i = 1;i<=n;i++){
        if (i%k == 0){
            a++;
            za += i;
        }
        else{
            b++;
            zb += i;
        }
    }
    printf("%.1lf %.1lf\n",ansa,ansb);
    return 0;
}

by lovely_codecat @ 2024-08-08 14:47:13

因为除0，要在处理完后再除

by ImposterAnYu @ 2024-08-08 14:51:40

@Cat_Jack 为啥上来就 0\div0……

by Cat_Jack @ 2024-08-08 14:51:58

@lovely_codecat 谢谢

by lovely_codecat @ 2024-08-08 14:54:26

@Cat_Jack 求关

by mayike @ 2024-08-08 14:59:16

这操作有点秀：

int a = 0,za = 0;
double ansa = za/a;

by Cat_Jack @ 2024-08-08 19:48:12

@lovely_codecat ok

by guoyanwei120223 @ 2024-08-09 17:18:36

#include<bits/stdc++.h>
using namespace std;
int n,k;
double a,b,c,d;
int main()
{

    cin>>n>>k;
    for(int i=1;i<=n;i++)
    {
        if(i%k==0)
        {
        a+=i;
        c++;
        }
        else 
        {
        b+=i;
        d++;
        }
    }
    cout<<fixed<<setprecision(1)<<a/c*1.0<<" ";
    cout<<fixed<<setprecision(1)<<b/d*1.0;
    return 0;

}

这样做，求关