Submission #1161502

#	Time	Username	Problem	Language	Result	Execution time	Memory
1161502		itaykarny	Maxcomp (info1cup18_maxcomp)	C++20	15 / 100	0 ms	328 KiB

maxcomp

#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<queue>

using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvll = vector<vll>;
using pll = pair<ll, ll>;
using vpll = vector<pll>;



int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);

	ll n, m;
	cin >> n >> m;
	vvll matrix(n, vll(m));
	for (ll i = 0; i < n; i++) {
		for (ll j = 0; j < m; j++) {
			cin >> matrix[i][j];
		}
	}
	ll ans = -1;
	vvll min_ele(n, vll(m, 1e18));
	for (ll i = 0; i < n; i++) {
		for (ll j = 0; j < m; j++) {
			if (i > 0) {
				min_ele[i][j] = min_ele[i - 1][j] + 1;
			}
			if (j > 0) {
				min_ele[i][j] = min(min_ele[i][j - 1] + 1, min_ele[i][j]);
			}
			min_ele[i][j] = min(min_ele[i][j], matrix[i][j] + 1);
			ans = max(ans, matrix[i][j] - min_ele[i][j]);
		}
	}
	vvll max_ele(n, vll(m));
	for (ll i = 0; i < n; i++) {
		for (ll j = 0; j < m; j++) {
			if (i > 0) {
				max_ele[i][j] = max_ele[i - 1][j] - 1;
			}
			if (j > 0) {
				max_ele[i][j] = max(max_ele[i][j - 1] - 1, max_ele[i][j]);
			}
			max_ele[i][j] = max(max_ele[i][j], matrix[i][j] - 1);
			ans = max(ans, max_ele[i][j] - matrix[i][j]);
		}
	}
	cout << ans << endl;



}

• Subtask 1: 0 / 15
• Subtask 2: 15 / 15
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40