Submission #1305744


Source Code Expand

//#define __USE_MINGW_ANSI_STDIO 0
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<ll> VL;
typedef vector<VL> VVL;
typedef pair<int, int> PII;

#define FOR(i, a, n) for (ll i = (ll)a; i < (ll)n; ++i)
#define REP(i, n) FOR(i, 0, n)
#define ALL(x) x.begin(), x.end()
#define IN(a, b, x) (a<=x&&x<b)
#define MP make_pair
#define PB push_back
#define MOD 1000000007
#define INF (1LL<<30)
#define LLINF (1LL<<60)
#define PI 3.14159265359
#define EPS 1e-12
//#define int ll

int dx[] = {0, 1, 0, -1}, dy[] = {1, 0, -1, 0};

VI g[20];
bool a[20];

void dfs(int n, int d) {
	for(int i: g[n]) {
		if(((d & (1<<n)) != (d & (1<<i))) && !a[i]) {
			a[i] = true;
			dfs(i, d);
		}
	}
}

signed main(void)
{
	int n, m;
	cin >> n >> m;
	REP(i, m) {
		int x, y;
		cin >> x >> y;
		x--; y--;
		g[x].PB(y);
		g[y].PB(x);
	}

	int ans = 0;
	REP(i, 1<<(n-1)) {
		REP(j, n) a[j] = false;
		dfs(0, i);
		bool f = true;
		REP(j, n) if(!a[j]) f = false;
		if(f) ans++;
	}

	cout << ans << endl;
	return 0;
}

Submission Info

Submission Time
Task C - Orange Graph
User ferin_tech
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1130 Byte
Status WA
Exec Time 30 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 100
Status
AC × 2
WA × 1
AC × 6
WA × 17
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt WA 1 ms 256 KB
test_01.txt AC 1 ms 256 KB
test_02.txt WA 1 ms 256 KB
test_03.txt WA 3 ms 256 KB
test_04.txt WA 2 ms 256 KB
test_05.txt WA 3 ms 256 KB
test_06.txt WA 2 ms 256 KB
test_07.txt WA 17 ms 256 KB
test_08.txt WA 8 ms 256 KB
test_09.txt AC 27 ms 256 KB
test_10.txt AC 13 ms 256 KB
test_11.txt WA 17 ms 256 KB
test_12.txt WA 10 ms 256 KB
test_13.txt WA 22 ms 256 KB
test_14.txt WA 10 ms 256 KB
test_15.txt WA 25 ms 256 KB
test_16.txt WA 11 ms 256 KB
test_17.txt WA 27 ms 256 KB
test_18.txt WA 13 ms 256 KB
test_19.txt AC 30 ms 256 KB
test_20.txt WA 14 ms 256 KB