题解 | #小乐乐求和#
小乐乐求和
https://www.nowcoder.com/practice/ce0b2eacd3d04647831358c2876e44ff
#include <stdio.h>
int main() {
long n = 0;//输入正整数
long sum = 0;//求和
scanf("%ld", &n);
for (int i = 1 ; i <= n; i++) {
sum += i;
}
printf("%ld", sum);
return 0;
}
