为什么只有80分？请教大佬们！！！qwq

贞德 @ 2017-06-27 21:16:21

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
int main(){
    int k,n;
    double s=0.0000;
    cin>>k;
    for(int i=1;i<=100000;i++){
        s=s+1.0/i;
          if(s>k){
              n=i;
              break;
          }
      }
      cout<<n;
return 0;
}

by 晏小翔Bill @ 2017-06-27 21:54:41

i应该也是double类型

by 晏小翔Bill @ 2017-06-27 21:57:29

而且最好用while形式

by 晏小翔Bill @ 2017-06-27 21:58:01

参考一下我的代码吧

by 晏小翔Bill @ 2017-06-27 22:00:37

个人认为你的代码有一点点复杂

献丑了：

#include<iostream>
#include<iomanip>
#include<cstring>
#include<cmath>
#include<cstdio>
using namespace std;
int main()
{
    double s=0,i=0;
    int k;
    cin>>k;
    while(s<=k)
    {
        i++;
        s=s+1.0/i;
    }
    cout<<i;
   return 0;
}

by c20191623 @ 2017-07-06 09:12:10

#include<stdio.h>
int main()
{
    double s;
    int k,i,j;  
    scanf("%d",&k);
    s=0.0;  
    for(i=1;;i++)
    {
        s=s+1.0/i;
        if(s>k)
        {
            break;
        }
    }
    printf("%d",i);
    return 0;
}

我的还不一样？很吓人啊 OJ上面都过了

by yanghaodong @ 2017-07-06 10:51:16

#include<iostream>
using namespace std;
int main()
{
    long double m,n=0;
    int i;
    cin>>m;
    for(i=1;n<=m;i++)
    {
        n+=1.0/i;
    }
    cout<<i-1;
    return 0;
}

by 鲸与梦之歌 @ 2017-07-06 18:18:53

#include<iostream> 
#include<cstdio>
#include<cmath>
#include<algorithm>
int k;
double sum=1;
using namespace std;
int main()
{
    cin>>k;
    for(int i=2;i<=100000000;i++)
    {
        sum+=1.0/i;
        if(sum>(k))
        {
            cout<<i;
            return 0;
        }
    }
    return 0;
}

by fletmer @ 2017-07-12 21:12:54

你把那个10000去掉，有可能超时了；改成:

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
int main()
{
    int k,n;
    double s=0.0000;
    cin>>k;
    for(int i=1;;i++){
        s=s+1.0/i;
          if(s>k){
              n=i;
              break;
          }
      }
      cout<<n;
return 0;
}

by Afri_Trigger @ 2017-07-13 14:31:34

#include<cstdio>
int main(void){
    int k;
    scanf("%d",&k);
    int i=1;
    double sn=1.0;
    while(sn<=k){
        i++;
        sn=1.0/i+sn;
    }
    printf("%d",i);
    return 0;
}