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