求助，这样子为啥不行

Eletronic_Monkey @ 2024-10-14 21:42:29

#include<stdio.h>
int main()
{
    int k;
    int n=0;
    float sum=0;
    scanf("%d",&k);
    while(sum<=k)
    {
        n++;
        sum+=1.0/n;
    }
    printf("%d",n);
    return 0;
}

by CZY880201 @ 2024-10-14 21:48:34

double

by CZY880201 @ 2024-10-14 21:48:57

double sum=0;

by CZY880201 @ 2024-10-14 21:49:27

https://www.luogu.com.cn/record/182168554

by Eletronic_Monkey @ 2024-10-14 21:55:42

@CZY880201 ok,可以了 谢谢

by ex24013216 @ 2024-10-15 23:43:16

@CZY880201 为什么要用double,用float不行

by CZY880201 @ 2024-10-17 12:50:37

思考一下1/0.3，如何使精度误差最小