oj.uz

Submission #1023891

# Submission time Handle Problem Language Result Execution time Memory
1023891 2024-07-15T08:45:10 Z j_vdd16 Soccer Stadium (IOI23_soccer) C++17
52 / 100
 4500 ms 98748 KB 
#include <algorithm>
#include <bitset>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <limits.h>
#include <math.h>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>

//#define int long long
#define loop(X, N) for(int X = 0; X < (N); X++)
#define all(V) V.begin(), V.end()
#define rall(V) V.rbegin(), V.rend()

using namespace std;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<bool> vb;
typedef vector<vector<bool>> vvb;


int biggest_stadium(int n, vvi f) {
	vvi up(n, vi(n)), down(n, vi(n)), left(n, vi(n)), right(n, vi(n));
	loop(x, n) {
		up[0][x] = 1 - f[0][x];
		for (int y = 1; y < n; y++) {
			if (f[y][x])
				up[y][x] = 0;
			else
				up[y][x] = up[y - 1][x] + 1;

		}

		down[n - 1][x] = 1 - f[n - 1][x];
		for (int y = n - 2; y >= 0; y--) {
			if (f[y][x])
				down[y][x] = 0;
			else
				down[y][x] = down[y + 1][x] + 1;
		}
	}
	loop(y, n) {
		left[y][0] = 1 - f[y][0];
		for (int x = 1; x < n; x++) {
			if (f[y][x])
				left[y][x] = 0;
			else
				left[y][x] = left[y][x - 1] + 1;

		}

		right[y][n - 1] = 1 - f[y][n - 1];
		for (int x = n - 2; x >= 0; x--) {
			if (f[y][x])
				right[y][x] = 0;
			else
				right[y][x] = right[y][x + 1] + 1;
		}

		//loop(y, n)
		//	cout << high[x][y] << low[x][y] << ' ';

		//cout << endl;
	}
	//cout << endl;

	int result = 0;
	loop(y, n) {
		loop(x, n) {
			if (f[y][x]) {
				//cout << "00 ";
				continue;
			}

			int count1 = 0;
			{
				int l = 0, r = n - 1;
				vii intervals;
				for (int y2 = y; y2 < y + down[y][x]; y2++) {
					l = max(l, x - left[y2][x] + 1);
					r = min(r, x + right[y2][x] - 1);

					intervals.push_back({ l, r });
					count1 += r - l + 1;
				}

				l = x - left[y][x] + 1;
				r = x + right[y][x] - 1;
				int idx = 0;
				for (int y2 = y - 1; y2 > y - up[y][x]; y2--) {
					l = max(l, x - left[y2][x] + 1);
					r = min(r, x + right[y2][x] - 1);

					while (idx < intervals.size()) {
						auto [li, ri] = intervals[idx];
						if (r < ri)
							l = max(l, li);

						if (l > li)
							r = min(r, ri);

						if (li >= l && ri <= r)
							break;

						idx++;
					}

					if (r < l)
						break;

					count1 += r - l + 1;
				}
			}
			int count2 = 0;
			{
				int l = 0, r = n - 1;
				vii intervals;
				for (int y2 = y; y2 > y - up[y][x]; y2--) {
					l = max(l, x - left[y2][x] + 1);
					r = min(r, x + right[y2][x] - 1);

					intervals.push_back({ l, r });
					count2 += r - l + 1;
				}

				l = x - left[y][x] + 1;
				r = x + right[y][x] - 1;

				int idx = 0;
				for (int y2 = y + 1; y2 < y + down[y][x]; y2++) {
					l = max(l, x - left[y2][x] + 1);
					r = min(r, x + right[y2][x] - 1);

					while (idx < intervals.size()) {
						auto [li, ri] = intervals[idx];
						if (r < ri)
							l = max(l, li);

						if (l > li)
							r = min(r, ri);

						if (li >= l && ri <= r)
							break;

						idx++;
					}

					if (r < l)
						break;

					count2 += r - l + 1;
				}
			}

			int count = max(count1, count2);
			result = max(result, count);
			//cout << count / 10 << count % 10 << ' ';
		}
		//cout << endl;
	}
	return result;
}

Compilation message

soccer.cpp: In function 'int biggest_stadium(int, vvi)':
soccer.cpp:104:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |      while (idx < intervals.size()) {
      |             ~~~~^~~~~~~~~~~~~~~~~~
soccer.cpp:144:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  144 |      while (idx < intervals.size()) {
      |             ~~~~^~~~~~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok

Subtask #1
0.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 13 ms 692 KB ok
8 Correct 1506 ms 6232 KB ok
9 Execution timed out 4535 ms 98748 KB Time limit exceeded
10 Halted 0 ms 0 KB -

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 344 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 344 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 344 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 344 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 1 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Correct 0 ms 348 KB ok

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 344 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 344 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 1 ms 348 KB ok
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 0 ms 348 KB ok
29 Correct 0 ms 344 KB ok
30 Correct 1 ms 348 KB ok
31 Correct 1 ms 348 KB ok
32 Correct 1 ms 348 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 348 KB ok
35 Correct 1 ms 344 KB ok
36 Correct 0 ms 348 KB ok
37 Correct 1 ms 348 KB ok
38 Correct 0 ms 348 KB ok
39 Correct 0 ms 348 KB ok
40 Correct 1 ms 348 KB ok
41 Correct 1 ms 344 KB ok

Subtask #5
4.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 344 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 344 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 1 ms 348 KB ok
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 0 ms 348 KB ok
29 Correct 0 ms 344 KB ok
30 Correct 1 ms 348 KB ok
31 Correct 1 ms 348 KB ok
32 Correct 1 ms 348 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 348 KB ok
35 Correct 1 ms 344 KB ok
36 Correct 0 ms 348 KB ok
37 Correct 1 ms 348 KB ok
38 Correct 0 ms 348 KB ok
39 Correct 0 ms 348 KB ok
40 Correct 1 ms 348 KB ok
41 Correct 1 ms 344 KB ok
42 Correct 103 ms 6748 KB ok
43 Correct 65 ms 6748 KB ok
44 Partially correct 536 ms 6748 KB partial
45 Partially correct 825 ms 6796 KB partial
46 Partially correct 171 ms 6744 KB partial
47 Partially correct 1488 ms 6892 KB partial
48 Correct 585 ms 6888 KB ok
49 Correct 616 ms 6744 KB ok
50 Correct 759 ms 6744 KB ok
51 Correct 251 ms 6748 KB ok
52 Partially correct 101 ms 6744 KB partial
53 Partially correct 31 ms 6748 KB partial
54 Partially correct 95 ms 6660 KB partial
55 Partially correct 204 ms 6748 KB partial
56 Correct 284 ms 6744 KB ok
57 Correct 1071 ms 6788 KB ok
58 Correct 988 ms 6888 KB ok
59 Correct 914 ms 6744 KB ok

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 13 ms 692 KB ok
9 Correct 1506 ms 6232 KB ok
10 Execution timed out 4535 ms 98748 KB Time limit exceeded
11 Halted 0 ms 0 KB -