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