제출 #728

#제출 시각아이디문제언어결과실행 시간메모리
728jyuno426지도 색칠하기 (GA3_map)C++98
30 / 120
1500 ms920 KiB
int map[30][30];
int chk[30];

long long mapping(int num)
{
	if(num == 0) return 1;
	bool color[5];
	int i;
	long long ans = 0;

	for(i=1;i<=4;i++) color[i] = false;

	for(i=1;i<=map[num][0];i++)
	{
		color[chk[map[num][i]]] = true;
	}
	
	for(i=1;i<=4;i++)
	{
		if(!color[i])
		{
			chk[num] = i;
			ans += mapping(num-1);
			chk[num] = 0;
		}
	}

	return ans;
}

long long NumberOfMaps (int N, int M, int *A, int *B){

	int i;

	for(i=0;i<M;i++)
	{
		map[A[i]][++map[A[i]][0]] = B[i];
		map[B[i]][++map[B[i]][0]] = A[i];
	}

	return mapping(N);
}
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