求∑k(k=100)+∑K*k(k=50)+∑1/k(k=10)
#include <stdio.h>
#include <math.h>
void main(){double as=0,bs=0,cs=0;for(int i=1;i<=100;i++){as+=i;}printf("1+...+100=%d\n",as);for(int j=1;j<=50;j++){bs+=pow(j,2);}printf("1*1+...+50*50=%d\n",bs);for(int k=1;k<=10;k++){cs+=(1/k);}printf("1/1+...+1/10=%f\n",cs);printf("sum=%f\n",as+bs+cs);
}
不懂请留言,谢谢