Submission #20002

#	Time	Username	Problem	Language	Result	Execution time	Memory
20002		yukariko	동전 (kriii4_E)	C++98	0 / 100	0 ms	1720 KiB

D

#include <bits/stdc++.h>
using namespace std;
 
#define MOD 1000000007
 
typedef long long lld;

lld f(int n){
	if(n < 3) return 1;
	n -= 2;
	lld r = (1LL<<n);
	if(n>3) r -= (1LL<<(n-3));
	return r;
}

int main(){
	int n;
	while(~scanf("%d", &n))
		printf("%lld\n", f(n));
	return 0;
}

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