Question

用C语言编写 计算1+1/2+1/4+......................1/50的值 并显示出来

Answer 1

#include<stdio.h>
main()
{
float i,r=1;
int c=0;
printf("1+");
for(i=2;i<50;i=i+2)
{
c=c+2;
r=1/i+r;
printf("1/%d+",c);
}
printf("\b=%f\n",r+0.5);
}

Answer 2

#include<stdio.h>
void main()
{
float sum,deno,term;
sum=1;
for(deno=2;deno<=50;deno=deno+2)
{
term=1.0/deno;
sum=sum+term;
}
printf("%f\n",sum);
}