Submission #19931

#	Time	Username	Problem	Language	Result	Execution time	Memory
19931		ilbbke	동전 (kriii4_E)	C++98	0 / 100	0 ms	1084 KiB

D

#include<stdio.h>
#define M 1000000007

int n;
long long dy[255];

int main()
{
	scanf("%d",&n);
	dy[1]=1; dy[2]=1;
	int i,j;
	for(i=3;i<=n;i++){
		for(j=i-2;j>=1;j--){
			dy[i]=(dy[i]+dy[j]*2%M)%M;
		}
	}
	printf("%lld",dy[n]);
	return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95