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