參考代碼:
#包含?“stdio.h”?
int?main()?
{?
int?n=1,m=2,I;
雙倍?sum = 0;
for(I = 0;我& lt20;i++){
sum+= 1.0 * n/m;
n+= m;
m+= 2;
}
printf("%.2lf\n ",sum);
回歸?0;
/*
運行結果:
96.80
*/