My coding way (1)

问题 A: 【C语言训练】计算t=1+1/2+1/3+...+1/n

时间限制: 1 Sec 内存限制: 128 MB

题目描述

计算t=1+1/2+1/3+...+1/n

输入

整型变量n

输出

t(保留六位小数)

样例输入

10

样例输出

2.928968

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#include <stdio.h>
int main()
{
int n;
double ans=0;
scanf("%d",&n);
for(;n>0;n--)
{
ans+=1.0/n;
}
printf("%.6lf \n",ans);
return 0;
}