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

