[C++] [DP] 백준 9095번 : 1, 2, 3 더하기

https://www.acmicpc.net/problem/9095

9095번: 1, 2, 3 더하기

#include<queue>
#include<iostream>
using namespace std;
int N;
int map[12];

void bfs() {
	queue<int> Now;
	Now.push(0);

	while (!Now.empty()) {
		int x = Now.front();
		Now.pop();

		if (x + 1 <= N) {
			Now.push(x + 1);
			if(x + 1 == N)
				map[x + 1]++;
		}
		if (x + 2 <= N) {
			Now.push(x + 2);
			if (x + 2 == N)
				map[x + 2]++;
		}
		if (x + 3 <= N) {
			Now.push(x + 3);
			if (x + 3 == N)
				map[x + 3]++;
		}
	}
}

int main(void) {
	int T;
	cin >> T;
	while (T-- > 0) {
		cin >> N;

		bfs();

		cout << map[N] << endl;
		map[N] = 0;
	}
}