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Submission #197757

# Submission time Handle Problem Language Result Execution time Memory
197757 2020-01-22T20:32:40 Z Minnakhmetov Rectangles (IOI19_rect) C++14
72 / 100
 5000 ms 514860 KB 
#include "rect.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int N = 2505;
int stk[N], to_l[N], to_r[N], w[N], last_v[N][N], last_h[N][N], c_v[N][N], c_h[N][N];
vector<int> lt[N][N], up[N][N];

void handle(int len) {
	fill(to_l, to_l + len, -1);
	fill(to_r, to_r + len, -1);

	int z = 0;

	for (int i = 0; i < len; i++) {
		while (z > 0 && w[stk[z - 1]] <= w[i]) {
			to_r[stk[--z]] = i;
		}
		stk[z++] = i;
	}

	z = 0;

	for (int i = len - 1; i >= 0; i--) {
		while (z > 0 && w[stk[z - 1]] <= w[i]) {
			to_l[stk[--z]] = i;
		}
		stk[z++] = i;
	}
}

ll count_rectangles(vector<vector<int>> a) {
	// w[0] = 1;
	// w[1] = 0;
	// w[2] = 1;

	// handle(3);

	// for (int i = 0; i < 3; i++) {
	// 	cout << to_l[i] << " ";
	// }
	// cout << "\n";
	// for (int i = 0; i < 3; i++) {
	// 	cout << to_r[i] << " ";
	// }
	// cout << "\n";

	// return 0;

	int n = a.size(),
		m = a[0].size();

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++)
			w[j] = a[i][j];
		handle(m);
		for (int j = 0; j < m; j++) {
			if (to_l[j] != -1 && to_l[j] + 1 < j) {
				lt[i][j - 1].push_back(to_l[j] + 1);
			}
			if (to_r[j] != -1 && to_l[to_r[j]] != j && j + 1 < to_r[j]) {
				lt[i][to_r[j] - 1].push_back(j + 1);
			}
		}
	}

	for (int j = 0; j < m; j++) {
		for (int i = 0; i < n; i++) {
			w[i] = a[i][j];
		}
		handle(n);
		for (int i = 0; i < n; i++) {
			if (to_l[i] != -1 && to_l[i] + 1 < i) {
				up[i - 1][j].push_back(to_l[i] + 1);
			}
			if (to_r[i] != -1 && to_l[to_r[i]] != i && i + 1 < to_r[i]) {
				up[to_r[i] - 1][j].push_back(i + 1);
			}
		}
	}

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			last_v[i][j] = -1;
			last_h[i][j] = -1;
		}
	}

	ll ans = 0;

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			for (int x : lt[i][j]) {
				if (last_v[j][x] != i - 1)
					c_v[j][x] = 0;
				last_v[j][x] = i;
				c_v[j][x]++;
			}
			for (int x : up[i][j]) {
				if (last_h[i][x] != j - 1)
					c_h[i][x] = 0;
				last_h[i][x] = j;
				c_h[i][x]++;

				for (int y : lt[i][j]) {
					if (i - c_v[j][y] + 1 <= x && j - c_h[i][x] + 1 <= y)
						ans++;
				}
			}
		}
	}

	return ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 295288 KB Output is correct
2 Correct 279 ms 295288 KB Output is correct
3 Correct 297 ms 295284 KB Output is correct
4 Correct 285 ms 295288 KB Output is correct
5 Correct 276 ms 295456 KB Output is correct
6 Correct 286 ms 295568 KB Output is correct
7 Correct 277 ms 295528 KB Output is correct
8 Correct 278 ms 295416 KB Output is correct
9 Correct 278 ms 295544 KB Output is correct
10 Correct 279 ms 295672 KB Output is correct
11 Correct 279 ms 295672 KB Output is correct
12 Correct 278 ms 295684 KB Output is correct
13 Correct 278 ms 295136 KB Output is correct
14 Correct 277 ms 295188 KB Output is correct
15 Correct 275 ms 295160 KB Output is correct
16 Correct 279 ms 295216 KB Output is correct
17 Correct 278 ms 295056 KB Output is correct
18 Correct 277 ms 295160 KB Output is correct
19 Correct 278 ms 295544 KB Output is correct
20 Correct 280 ms 295324 KB Output is correct
21 Correct 276 ms 295164 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 295288 KB Output is correct
2 Correct 279 ms 295288 KB Output is correct
3 Correct 297 ms 295284 KB Output is correct
4 Correct 285 ms 295288 KB Output is correct
5 Correct 276 ms 295456 KB Output is correct
6 Correct 286 ms 295568 KB Output is correct
7 Correct 277 ms 295528 KB Output is correct
8 Correct 278 ms 295416 KB Output is correct
9 Correct 278 ms 295544 KB Output is correct
10 Correct 279 ms 295672 KB Output is correct
11 Correct 279 ms 295672 KB Output is correct
12 Correct 278 ms 295684 KB Output is correct
13 Correct 278 ms 295136 KB Output is correct
14 Correct 277 ms 295188 KB Output is correct
15 Correct 275 ms 295160 KB Output is correct
16 Correct 279 ms 295216 KB Output is correct
17 Correct 279 ms 296028 KB Output is correct
18 Correct 279 ms 296056 KB Output is correct
19 Correct 279 ms 295928 KB Output is correct
20 Correct 280 ms 296620 KB Output is correct
21 Correct 280 ms 296696 KB Output is correct
22 Correct 282 ms 296744 KB Output is correct
23 Correct 280 ms 296696 KB Output is correct
24 Correct 282 ms 296312 KB Output is correct
25 Correct 278 ms 295056 KB Output is correct
26 Correct 277 ms 295160 KB Output is correct
27 Correct 278 ms 295544 KB Output is correct
28 Correct 280 ms 295324 KB Output is correct
29 Correct 276 ms 295164 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 295288 KB Output is correct
2 Correct 279 ms 295288 KB Output is correct
3 Correct 297 ms 295284 KB Output is correct
4 Correct 285 ms 295288 KB Output is correct
5 Correct 276 ms 295456 KB Output is correct
6 Correct 286 ms 295568 KB Output is correct
7 Correct 277 ms 295528 KB Output is correct
8 Correct 278 ms 295416 KB Output is correct
9 Correct 278 ms 295544 KB Output is correct
10 Correct 279 ms 295672 KB Output is correct
11 Correct 279 ms 295672 KB Output is correct
12 Correct 278 ms 295684 KB Output is correct
13 Correct 278 ms 295136 KB Output is correct
14 Correct 277 ms 295188 KB Output is correct
15 Correct 275 ms 295160 KB Output is correct
16 Correct 279 ms 295216 KB Output is correct
17 Correct 279 ms 296028 KB Output is correct
18 Correct 279 ms 296056 KB Output is correct
19 Correct 279 ms 295928 KB Output is correct
20 Correct 280 ms 296620 KB Output is correct
21 Correct 280 ms 296696 KB Output is correct
22 Correct 282 ms 296744 KB Output is correct
23 Correct 280 ms 296696 KB Output is correct
24 Correct 282 ms 296312 KB Output is correct
25 Correct 286 ms 297976 KB Output is correct
26 Correct 284 ms 297976 KB Output is correct
27 Correct 285 ms 298168 KB Output is correct
28 Correct 291 ms 299980 KB Output is correct
29 Correct 297 ms 300408 KB Output is correct
30 Correct 295 ms 300576 KB Output is correct
31 Correct 295 ms 300332 KB Output is correct
32 Correct 294 ms 300408 KB Output is correct
33 Correct 278 ms 295056 KB Output is correct
34 Correct 277 ms 295160 KB Output is correct
35 Correct 278 ms 295544 KB Output is correct
36 Correct 280 ms 295324 KB Output is correct
37 Correct 276 ms 295164 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 295288 KB Output is correct
2 Correct 279 ms 295288 KB Output is correct
3 Correct 297 ms 295284 KB Output is correct
4 Correct 285 ms 295288 KB Output is correct
5 Correct 276 ms 295456 KB Output is correct
6 Correct 286 ms 295568 KB Output is correct
7 Correct 277 ms 295528 KB Output is correct
8 Correct 278 ms 295416 KB Output is correct
9 Correct 278 ms 295544 KB Output is correct
10 Correct 279 ms 295672 KB Output is correct
11 Correct 279 ms 295672 KB Output is correct
12 Correct 278 ms 295684 KB Output is correct
13 Correct 278 ms 295136 KB Output is correct
14 Correct 277 ms 295188 KB Output is correct
15 Correct 275 ms 295160 KB Output is correct
16 Correct 279 ms 295216 KB Output is correct
17 Correct 279 ms 296028 KB Output is correct
18 Correct 279 ms 296056 KB Output is correct
19 Correct 279 ms 295928 KB Output is correct
20 Correct 280 ms 296620 KB Output is correct
21 Correct 280 ms 296696 KB Output is correct
22 Correct 282 ms 296744 KB Output is correct
23 Correct 280 ms 296696 KB Output is correct
24 Correct 282 ms 296312 KB Output is correct
25 Correct 286 ms 297976 KB Output is correct
26 Correct 284 ms 297976 KB Output is correct
27 Correct 285 ms 298168 KB Output is correct
28 Correct 291 ms 299980 KB Output is correct
29 Correct 297 ms 300408 KB Output is correct
30 Correct 295 ms 300576 KB Output is correct
31 Correct 295 ms 300332 KB Output is correct
32 Correct 294 ms 300408 KB Output is correct
33 Correct 438 ms 321912 KB Output is correct
34 Correct 345 ms 328312 KB Output is correct
35 Correct 381 ms 328184 KB Output is correct
36 Correct 396 ms 334436 KB Output is correct
37 Correct 336 ms 317432 KB Output is correct
38 Correct 367 ms 317440 KB Output is correct
39 Correct 342 ms 317732 KB Output is correct
40 Correct 334 ms 316708 KB Output is correct
41 Correct 379 ms 322808 KB Output is correct
42 Correct 398 ms 325332 KB Output is correct
43 Correct 476 ms 333116 KB Output is correct
44 Correct 479 ms 334932 KB Output is correct
45 Correct 381 ms 319544 KB Output is correct
46 Correct 378 ms 318388 KB Output is correct
47 Correct 460 ms 331636 KB Output is correct
48 Correct 462 ms 332568 KB Output is correct
49 Correct 278 ms 295056 KB Output is correct
50 Correct 277 ms 295160 KB Output is correct
51 Correct 278 ms 295544 KB Output is correct
52 Correct 280 ms 295324 KB Output is correct
53 Correct 276 ms 295164 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 279 ms 295468 KB Output is correct
2 Correct 278 ms 295380 KB Output is correct
3 Correct 287 ms 295276 KB Output is correct
4 Correct 279 ms 295192 KB Output is correct
5 Correct 301 ms 313208 KB Output is correct
6 Correct 297 ms 313124 KB Output is correct
7 Correct 334 ms 313208 KB Output is correct
8 Correct 311 ms 312220 KB Output is correct
9 Correct 298 ms 311544 KB Output is correct
10 Correct 288 ms 305244 KB Output is correct
11 Correct 294 ms 310540 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 278 ms 295212 KB Output is correct
2 Correct 892 ms 410900 KB Output is correct
3 Correct 1611 ms 513124 KB Output is correct
4 Correct 1601 ms 514632 KB Output is correct
5 Correct 1597 ms 514860 KB Output is correct
6 Correct 417 ms 349688 KB Output is correct
7 Correct 570 ms 393596 KB Output is correct
8 Correct 586 ms 396408 KB Output is correct
9 Correct 278 ms 295056 KB Output is correct
10 Correct 277 ms 295160 KB Output is correct
11 Correct 278 ms 295544 KB Output is correct
12 Correct 280 ms 295324 KB Output is correct
13 Correct 276 ms 295164 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 282 ms 295288 KB Output is correct
2 Correct 279 ms 295288 KB Output is correct
3 Correct 297 ms 295284 KB Output is correct
4 Correct 285 ms 295288 KB Output is correct
5 Correct 276 ms 295456 KB Output is correct
6 Correct 286 ms 295568 KB Output is correct
7 Correct 277 ms 295528 KB Output is correct
8 Correct 278 ms 295416 KB Output is correct
9 Correct 278 ms 295544 KB Output is correct
10 Correct 279 ms 295672 KB Output is correct
11 Correct 279 ms 295672 KB Output is correct
12 Correct 278 ms 295684 KB Output is correct
13 Correct 278 ms 295136 KB Output is correct
14 Correct 277 ms 295188 KB Output is correct
15 Correct 275 ms 295160 KB Output is correct
16 Correct 279 ms 295216 KB Output is correct
17 Correct 279 ms 296028 KB Output is correct
18 Correct 279 ms 296056 KB Output is correct
19 Correct 279 ms 295928 KB Output is correct
20 Correct 280 ms 296620 KB Output is correct
21 Correct 280 ms 296696 KB Output is correct
22 Correct 282 ms 296744 KB Output is correct
23 Correct 280 ms 296696 KB Output is correct
24 Correct 282 ms 296312 KB Output is correct
25 Correct 286 ms 297976 KB Output is correct
26 Correct 284 ms 297976 KB Output is correct
27 Correct 285 ms 298168 KB Output is correct
28 Correct 291 ms 299980 KB Output is correct
29 Correct 297 ms 300408 KB Output is correct
30 Correct 295 ms 300576 KB Output is correct
31 Correct 295 ms 300332 KB Output is correct
32 Correct 294 ms 300408 KB Output is correct
33 Correct 438 ms 321912 KB Output is correct
34 Correct 345 ms 328312 KB Output is correct
35 Correct 381 ms 328184 KB Output is correct
36 Correct 396 ms 334436 KB Output is correct
37 Correct 336 ms 317432 KB Output is correct
38 Correct 367 ms 317440 KB Output is correct
39 Correct 342 ms 317732 KB Output is correct
40 Correct 334 ms 316708 KB Output is correct
41 Correct 379 ms 322808 KB Output is correct
42 Correct 398 ms 325332 KB Output is correct
43 Correct 476 ms 333116 KB Output is correct
44 Correct 479 ms 334932 KB Output is correct
45 Correct 381 ms 319544 KB Output is correct
46 Correct 378 ms 318388 KB Output is correct
47 Correct 460 ms 331636 KB Output is correct
48 Correct 462 ms 332568 KB Output is correct
49 Correct 279 ms 295468 KB Output is correct
50 Correct 278 ms 295380 KB Output is correct
51 Correct 287 ms 295276 KB Output is correct
52 Correct 279 ms 295192 KB Output is correct
53 Correct 301 ms 313208 KB Output is correct
54 Correct 297 ms 313124 KB Output is correct
55 Correct 334 ms 313208 KB Output is correct
56 Correct 311 ms 312220 KB Output is correct
57 Correct 298 ms 311544 KB Output is correct
58 Correct 288 ms 305244 KB Output is correct
59 Correct 294 ms 310540 KB Output is correct
60 Correct 278 ms 295212 KB Output is correct
61 Correct 892 ms 410900 KB Output is correct
62 Correct 1611 ms 513124 KB Output is correct
63 Correct 1601 ms 514632 KB Output is correct
64 Correct 1597 ms 514860 KB Output is correct
65 Correct 417 ms 349688 KB Output is correct
66 Correct 570 ms 393596 KB Output is correct
67 Correct 586 ms 396408 KB Output is correct
68 Execution timed out 5045 ms 512500 KB Time limit exceeded
69 Halted 0 ms 0 KB -