#include<stdio.h>int main(){double k,s1=0,s2=0,s3=0;for(k=1;k<=100;k++)s1+=k;for(k=1;k<=50;k++)s2+=k*k;for(k=1;k<=10;k++)s3+=1/k;printf("sum=%d",s1+s2+s3);return 0;}
%d有问题%lf输出的是