oj.uz

Submission #993472

# Submission time Handle Problem Language Result Execution time Memory
993472 2024-06-05T17:57:14 Z horezushol The Kingdom of JOIOI (JOI17_joioi) C++14
100 / 100
 3297 ms 91268 KB 
#include<bits/stdc++.h>
#define F first
#define S second
#define SZ(x) ((int)(x).size())
inline void outlast() {
	#ifndef ONLINE_JUDGE
	freopen("in.txt", "r", stdin);
	freopen("out.txt", "w", stdout);
	#endif
}
const char nl = '\n';
using namespace std;
using ll = long long;
// head

const int N = 2100;
vector<vector<int>> a(N, vector<int> (N, 0));
vector<vector<int>> rotated(N, vector<int>(N));    
int h, w;

vector<vector<int>> CIRCLE(const vector<vector<int>>& matrix) {
    for (int i = 1; i <= h; i++) {
        for (int j = 1; j <= w; j++) {
            rotated[j][h-i+1] = matrix[i][j];
        }
    }
    swap(h, w);
    return rotated;
}


void solve() {
	cin >> h >> w;
	for (int i = 1; i <= h; i ++) {
		for (int j = 1; j <= w; j ++) {
			cin >> a[i][j];
		}
	}
	int L = 0, R = 1e9;
	vector<int> row(N, 0);
	while (L + 1 < R) {
		int mid = (L + R) / 2;
		bool ok = false;
		for (int i = 0; i < 4; i ++) {
			a = CIRCLE(a);
			int val = INT_MAX, posx = 0, posy = 0;
			for (int i = 1; i <= h; i ++) {
				for (int j = 1; j <= w; j ++) {
					if (a[i][j] < val) {
						val = a[i][j];
						posx = i;
						posy = j;
					}
				}
			}
			for (int i = 1; i <= h; i ++) {
				row[i] = 0;
				for (int j = 1; j <= w; j ++) {
					if (a[i][j] <= val + mid) {
						row[i] ++;
					} else {
						break;
					}
				}
			}
			for (int i = 2; i <= h; i ++) {
				row[i] = min(row[i], row[i-1]);
			}
			int mn = INT_MAX, mx = INT_MIN;
			for (int i = 1; i <= h; i ++) {
				for (int j = row[i]+1; j <= w; j ++) {
					mn = min(mn, a[i][j]);
					mx = max(mx, a[i][j]);
				}
			}
			if (row[posx] >= posy && (mx == INT_MIN || mx - mn <= mid)) {
				ok = true;
			}
		}
		if (ok) {
			R = mid;
		} else {
			L = mid;
		}
	}
	cout << R;
}

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	// outlast();
	int tst = 1;
	// cin >> tst;
	while (tst --) {
		solve();
		cout << nl;
	}
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 555 ms 52916 KB Output is correct
2 Correct 528 ms 52560 KB Output is correct
3 Correct 571 ms 52616 KB Output is correct
4 Correct 577 ms 52560 KB Output is correct
5 Correct 546 ms 52612 KB Output is correct
6 Correct 548 ms 52540 KB Output is correct
7 Correct 619 ms 52596 KB Output is correct
8 Correct 579 ms 52624 KB Output is correct
9 Correct 542 ms 52576 KB Output is correct
10 Correct 560 ms 52756 KB Output is correct
11 Correct 585 ms 52564 KB Output is correct
12 Correct 554 ms 52760 KB Output is correct
13 Correct 550 ms 52580 KB Output is correct
14 Correct 550 ms 52656 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 555 ms 52916 KB Output is correct
2 Correct 528 ms 52560 KB Output is correct
3 Correct 571 ms 52616 KB Output is correct
4 Correct 577 ms 52560 KB Output is correct
5 Correct 546 ms 52612 KB Output is correct
6 Correct 548 ms 52540 KB Output is correct
7 Correct 619 ms 52596 KB Output is correct
8 Correct 579 ms 52624 KB Output is correct
9 Correct 542 ms 52576 KB Output is correct
10 Correct 560 ms 52756 KB Output is correct
11 Correct 585 ms 52564 KB Output is correct
12 Correct 554 ms 52760 KB Output is correct
13 Correct 550 ms 52580 KB Output is correct
14 Correct 550 ms 52656 KB Output is correct
15 Correct 571 ms 52604 KB Output is correct
16 Correct 578 ms 52576 KB Output is correct
17 Correct 580 ms 52612 KB Output is correct
18 Correct 574 ms 52688 KB Output is correct
19 Correct 570 ms 52588 KB Output is correct
20 Correct 579 ms 52612 KB Output is correct
21 Correct 613 ms 52668 KB Output is correct
22 Correct 585 ms 52560 KB Output is correct
23 Correct 583 ms 52780 KB Output is correct
24 Correct 587 ms 52580 KB Output is correct
25 Correct 591 ms 52576 KB Output is correct
26 Correct 601 ms 52576 KB Output is correct
27 Correct 582 ms 52560 KB Output is correct
28 Correct 624 ms 52544 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 555 ms 52916 KB Output is correct
2 Correct 528 ms 52560 KB Output is correct
3 Correct 571 ms 52616 KB Output is correct
4 Correct 577 ms 52560 KB Output is correct
5 Correct 546 ms 52612 KB Output is correct
6 Correct 548 ms 52540 KB Output is correct
7 Correct 619 ms 52596 KB Output is correct
8 Correct 579 ms 52624 KB Output is correct
9 Correct 542 ms 52576 KB Output is correct
10 Correct 560 ms 52756 KB Output is correct
11 Correct 585 ms 52564 KB Output is correct
12 Correct 554 ms 52760 KB Output is correct
13 Correct 550 ms 52580 KB Output is correct
14 Correct 550 ms 52656 KB Output is correct
15 Correct 571 ms 52604 KB Output is correct
16 Correct 578 ms 52576 KB Output is correct
17 Correct 580 ms 52612 KB Output is correct
18 Correct 574 ms 52688 KB Output is correct
19 Correct 570 ms 52588 KB Output is correct
20 Correct 579 ms 52612 KB Output is correct
21 Correct 613 ms 52668 KB Output is correct
22 Correct 585 ms 52560 KB Output is correct
23 Correct 583 ms 52780 KB Output is correct
24 Correct 587 ms 52580 KB Output is correct
25 Correct 591 ms 52576 KB Output is correct
26 Correct 601 ms 52576 KB Output is correct
27 Correct 582 ms 52560 KB Output is correct
28 Correct 624 ms 52544 KB Output is correct
29 Correct 2987 ms 52444 KB Output is correct
30 Correct 2897 ms 52632 KB Output is correct
31 Correct 3297 ms 52480 KB Output is correct
32 Correct 3183 ms 75712 KB Output is correct
33 Correct 2758 ms 72500 KB Output is correct
34 Correct 3080 ms 75636 KB Output is correct
35 Correct 3243 ms 91156 KB Output is correct
36 Correct 2685 ms 86144 KB Output is correct
37 Correct 3029 ms 91268 KB Output is correct