题解 | #牛牛学数列4#
牛牛学数列4
https://www.nowcoder.com/practice/586b114f52034688879342ba45779081
#include <stdio.h>
int main() {
int n = 0;
int sum = 0;
int s = 0;
scanf("%d",&n);
for (int i = 1; i <= n; i++) {
sum += i;
s= s+ sum;
}
printf("%d\n",s);
return 0;
}
，可以适当对关键信息加粗一点，比如关键技术、性能指标之类的。