题解 | #[NOIP2015]金币#
[NOIP2015]金币
https://www.nowcoder.com/practice/8f71f5670e6a45118d24d13868a2da9e
#include <stdio.h>
int main()
{
int k=0,sum=0,n=1;
scanf("%d",&k);
int i=0;
int j=1;
for(i=1;i<=k;i++)
{
for(j=1;j<=i;j++)
{
sum=sum+n;
if(i==k)
{
goto out;
}
if(j==n)
{
break;
}
i++;
}
n++;
}
out:
printf("%d\n",sum);
return 0;
}
