题解 | 牛牛学数列4
牛牛学数列4
https://www.nowcoder.com/practice/586b114f52034688879342ba45779081
#include <stdio.h>
//甚至不需要多加一个循环只需要把求和再写一遍
int main() {
int n;
int sum=0,sum1=0;
scanf("%d",&n);
for(int i=1;i<=n;i++){
sum=sum+i;
sum1=sum1+sum;
}
printf("%d",sum1);
return 0;
}
查看8道真题和解析
