Submission #638519

#	Time	Username	Problem	Language	Result	Execution time	Memory
638519		gagik_2007	T-Covering (eJOI19_covering)	C++17	0 / 100	6 ms	468 KiB

covering

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cmath>
#include <ctime>
#include <set>
#include <map>
#include <stack>
#include <queue>
#include <deque>
#include <limits>
#include <iomanip>
#include <unordered_set>
#include <unordered_map>
#include <fstream>
#include <random>
using namespace std;

typedef long long ll;
typedef double ld;
typedef int itn;

#define ff first
#define ss second

ll ttt;
const ll INF = 1e18;
const ll SAFEINF = 1e12;
const ll MOD = 1e9 + 7;
const ll MOD2 = 998244353;
const ll MOD3 = 32768;
const ll N = 2e5 + 7;
ll n, m, k;
vector<vector<ll>>a;
vector<vector<bool>>sp;

int main() {
	cin >> n >> m;
	sp.resize(n + 1, vector<bool>(m + 1, false));
	a.push_back(vector<ll>(m + 2, 0));
	for (int i = 1; i <= n; i++) {
		a.push_back(vector<ll>(m + 2, 0));
		for (int j = 1; j <= m; j++) {
			cin >> a[i][j];
		}
	}
	a.push_back(vector<ll>(m + 2, 0));
	cin >> k;
	bool ok = true;
	for (int i = 0; i < k; i++) {
		ll x, y;
		cin >> x >> y;
		x++, y++;
		if (x == 0 || x == n) {
			if (y == 0 || y == n) {
				ok = false;
			}
		}
		sp[x][y] = true;
	}
	if (!ok) {
		cout << "NO" << endl;
		return 0;
	}
	ll ans = 0;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			if (sp[i][j]) {
				ll mn = min({ a[i][j - 1],a[i][j + 1],a[i - 1][j],a[i + 1][j] });
				ans += a[i][j] + a[i][j - 1] + a[i][j + 1] 
					+ a[i - 1][j] + a[i + 1][j] - mn;
			}
		}
	}
	cout << ans << endl;
	return 0;
}

/*
4 20
2
3
2
2

*/

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 15
• Subtask 6: 0 / 20
• Subtask 7: 0 / 30