Submission #523397

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
523397	2022-02-07T15:19:15 Z	boykut	UFO (IZhO14_ufo)	C++14	30 / 100	2000 ms	8652 KB

ufo

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef tree<int, null_type, less<int>,
rb_tree_tag, tree_order_statistics_node_update> ordered_set;

vector<vector<int>> a;
vector<vector<long long>> pref;

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

	int n, m, r, k, p;
	cin >> n >> m >> r >> k >> p;

	a = vector<vector<int>>(n, vector<int>(m));

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			cin >> a[i][j];
		}
	}

	while (k--) {
		char c; cin >> c;
		int x, y; cin >> x >> y;
		int cnt = r;
		x--;
		if (c == 'W') {
			auto getmax = [&](int l, int r) {
				int ans = INT_MIN;
				for (int j = l; j <= r; j++) ans = max(ans, a[x][j]);
				return ans;
			};
			int start = 0;
			while (cnt > 0 && start < m) {
				int l = start, r = m - 1;
				while (l < r) {
					int m = (l + r) / 2;
					if (getmax(start, m) >= y)
						r = m;
					else
						l = m + 1;
				}
				if (a[x][r] >= y) {
					a[x][r]--;
					cnt--;
					start = r + 1;
				} else break;
			}
		} else if (c == 'E') {
			for (int j = m - 1; j >= 0 && cnt > 0; j--) {
				if (a[x][j] >= y) {
					a[x][j]--;
					cnt--;
				}
			}
		} else if (c == 'N') {
			for (int i = 0; i < n && cnt > 0; i++) {
				if (a[i][x] >= y) {
					a[i][x]--;
					cnt--;
				}
			}
		} else {
			for (int i = n - 1; i >= 0 && cnt > 0; i--) {
				if (a[i][x] >= y) {
					a[i][x]--;
					cnt--;
				}
			}
		}
	}

	pref = vector<vector<long long>>(n, vector<long long>(m));
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			//cout << a[i][j] << ' ';
			pref[i][j] = a[i][j];
			pref[i][j] += (i ? pref[i-1][j] : 0);
			pref[i][j] += (j ? pref[i][j-1] : 0);
			pref[i][j] -= (i && j ? pref[i-1][j-1] : 0);
		}
		//cout << '\n';
	}

	auto get = [&](int a, int b, int c, int d) ->long long {
		long long s = pref[c][d];
		s -= (a ? pref[a-1][d] : 0);
		s -= (b ? pref[c][b-1] : 0);
		s += (a && b ? pref[a-1][b-1] : 0);
		return s;
	};

	long long ans = LLONG_MIN;
	for (int i = 0; i + p - 1 < n; i++) {
		for (int j = 0; j + p - 1 < m; j++) {
			ans = max(ans, get(i, j, i + p - 1, j + p - 1));
		}
	}
	cout << ans << '\n';

	return 0;
}

Subtask #1

30.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	220 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	6 ms	332 KB	Output is correct
5	Correct	663 ms	892 KB	Output is correct
6	Correct	134 ms	6084 KB	Output is correct
7	Execution timed out	2072 ms	4556 KB	Time limit exceeded
8	Execution timed out	2074 ms	4556 KB	Time limit exceeded
9	Execution timed out	2069 ms	4428 KB	Time limit exceeded
10	Execution timed out	2074 ms	4556 KB	Time limit exceeded
11	Execution timed out	2072 ms	4556 KB	Time limit exceeded
12	Execution timed out	2080 ms	4556 KB	Time limit exceeded
13	Execution timed out	2048 ms	7344 KB	Time limit exceeded
14	Execution timed out	2076 ms	4556 KB	Time limit exceeded
15	Execution timed out	2048 ms	4556 KB	Time limit exceeded
16	Execution timed out	2073 ms	4556 KB	Time limit exceeded
17	Execution timed out	2070 ms	7244 KB	Time limit exceeded
18	Execution timed out	2075 ms	8652 KB	Time limit exceeded
19	Execution timed out	2071 ms	4940 KB	Time limit exceeded
20	Execution timed out	2084 ms	8140 KB	Time limit exceeded