oj.uz

Submission #419060

# Submission time Handle Problem Language Result Execution time Memory
419060 2021-06-06T11:31:42 Z FlippenFaz Rectangles (IOI19_rect) C++14
25 / 100
 5000 ms 255488 KB 
#include "rect.h"
#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
 
#define SIZE 4096
 
vector<vector<ll>> gridSegCol;
vector<vector<ll>> gridSegRow;
 
 
bool isRowValid(int left, int right, int rowNum) {
	ll mx = -1;
	int l = left + SIZE;
	int r = right + SIZE;
	
	while (l <= r) {
		if (l%2 == 1) {
			mx = max(mx,gridSegRow[rowNum][l++]);
		}
		if (r%2 == 0) {
			mx = max(mx,gridSegRow[rowNum][r--]);
		}
		l/=2;
		r/=2;
	}
 
	//cerr << endl;
	//cerr << "VALUES FOR " << left << " " << right << " FOR ROW: " << rowNum << endl;
	//cerr << "MX: " << mx << " LEFT AND RIGHT: " << gridSegRow[rowNum][left+SIZE-1] << " " << gridSegRow[rowNum][right+SIZE+1] << endl;
	//cerr << "VALID?: " << ( (mx < gridSegRow[rowNum][left+SIZE-1]) && (mx < gridSegRow[rowNum][right+SIZE+1])) << endl;
 
	return ( (mx < gridSegRow[rowNum][left+SIZE-1]) && (mx < gridSegRow[rowNum][right+SIZE+1]));
}
 
bool isColValid(int left, int right, int colNum) {
 
	ll mx = -1;
	int l = left + SIZE;
	int r = right + SIZE;
	
	while (l <= r) {
		if (l%2 == 1) {
			mx = max(mx,gridSegCol[colNum][l++]);
		}
		if (r%2 == 0) {
			mx = max(mx,gridSegCol[colNum][r--]);
		}
		l/=2;
		r/=2;
	}
 
	//cerr << endl;
	//cerr << "VALUES FOR " << left << " " << right << " FOR COL: " << colNum << endl;
	//cerr << "MX: " << mx << " LEFT AND RIGHT: " << gridSegCol[colNum][left+SIZE-1] << " " << gridSegCol[colNum][right+SIZE+1] << endl;
	//cerr << "VALID?: " << ((mx < gridSegCol[colNum][left+SIZE-1]) && (mx < gridSegCol[colNum][right+SIZE+1])) << endl;
 
	return ( (mx < gridSegCol[colNum][left+SIZE-1]) && (mx < gridSegCol[colNum][right+SIZE+1]) );
}
 
// 1 1 1 2
// 1 1 1 3
// 1 1 2 1
 
bool isBoxValid(int topRow, int leftCol, int botRow, int rightCol) {
	for (int i = topRow; i <= botRow; i++) {
		if (!isRowValid(leftCol, rightCol, i)) {
			return false;
		}
	}
 
	for (int i = leftCol; i <= rightCol; i++) {
		if (!isColValid(topRow, botRow, i)) {
			return false;
		}
	}
 
	return true;
	
}
 
ll count_rectangles(std::vector<std::vector<int> > a) {
 
	//cout << "ROWS A.size: " << a.size() << endl;
	//cout << "COLS a[0].size: " << a[0].size() << endl;
 
	ll cnt = 0;
 
	vector<ll> temp;
	temp.resize(SIZE*2);
 
	//vector<vector<vector<bool>>> checkCol;
	//vector<vector<vector<bool>>> checkRow;
 
	gridSegRow.resize(a.size(), temp);
	gridSegCol.resize(a[0].size(), temp);
 
	//cerr << "HERE" << endl;
 
	for (int i = 0; i < a.size(); i++) {
		for (int j = 0; j < a[0].size(); j++) {
			gridSegRow[i][j+SIZE] = a[i][j];
			gridSegCol[j][i+SIZE] = a[i][j];
		}
	}
 
	//cerr << "Done" << endl;
 
	for (int i = 0; i < a.size(); i++) {
		for (int j = SIZE-1; j > 0; j--) {
			gridSegRow[i][j] = max( gridSegRow[i][j*2], gridSegRow[i][j*2+1]);
		}
	}
 
	for (int i = 0; i < a[0].size(); i++) {
		for (int j = SIZE-1; j > 0; j--) {
			gridSegCol[i][j] = max( gridSegCol[i][j*2], gridSegCol[i][j*2+1]);
		}
	}
 
	//cerr << gridSegCol[2][3+SIZE] << " SHOULD BE " << a[2][3];
	
	for (int i = 1; i < a.size()-1; i++) {
		for (int j = 1; j < a[0].size()-1; j++) {
			for (int k = i; k < a.size()-1; k++) {
				for (int l = j; l < a[0].size()-1; l++) {
 
					//cerr << endl;
					//cerr << endl;
					//cerr << "Testing: " << i << " " << j << " " << k << " " << l << endl;
					bool isValid = isBoxValid(i, j, k, l);
					if (isValid) {
						//cerr << "BOX DIMENSIONS: " << i << " " << j << " " << k << " " << l << endl;
						cnt++;
					}
				}
			}
		}
	}
 
	return cnt;
 
}

Compilation message

rect.cpp: In function 'll count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:101:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~
rect.cpp:102:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |   for (int j = 0; j < a[0].size(); j++) {
      |                   ~~^~~~~~~~~~~~~
rect.cpp:110:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~
rect.cpp:116:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  116 |  for (int i = 0; i < a[0].size(); i++) {
      |                  ~~^~~~~~~~~~~~~
rect.cpp:124:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  124 |  for (int i = 1; i < a.size()-1; i++) {
      |                  ~~^~~~~~~~~~~~
rect.cpp:125:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  125 |   for (int j = 1; j < a[0].size()-1; j++) {
      |                   ~~^~~~~~~~~~~~~~~
rect.cpp:126:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  126 |    for (int k = i; k < a.size()-1; k++) {
      |                    ~~^~~~~~~~~~~~
rect.cpp:127:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  127 |     for (int l = j; l < a[0].size()-1; l++) {
      |                     ~~^~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 7 ms 4132 KB Output is correct
3 Correct 7 ms 4172 KB Output is correct
4 Correct 7 ms 4172 KB Output is correct
5 Correct 5 ms 4172 KB Output is correct
6 Correct 6 ms 4172 KB Output is correct
7 Correct 3 ms 3020 KB Output is correct
8 Correct 3 ms 3036 KB Output is correct
9 Correct 5 ms 4172 KB Output is correct
10 Correct 5 ms 4172 KB Output is correct
11 Correct 6 ms 4148 KB Output is correct
12 Correct 7 ms 4172 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 1056 KB Output is correct
15 Correct 1 ms 1572 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 668 KB Output is correct
19 Correct 4 ms 4172 KB Output is correct
20 Correct 3 ms 3148 KB Output is correct
21 Correct 1 ms 1100 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 7 ms 4132 KB Output is correct
3 Correct 7 ms 4172 KB Output is correct
4 Correct 7 ms 4172 KB Output is correct
5 Correct 5 ms 4172 KB Output is correct
6 Correct 6 ms 4172 KB Output is correct
7 Correct 3 ms 3020 KB Output is correct
8 Correct 3 ms 3036 KB Output is correct
9 Correct 5 ms 4172 KB Output is correct
10 Correct 5 ms 4172 KB Output is correct
11 Correct 6 ms 4148 KB Output is correct
12 Correct 7 ms 4172 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 1056 KB Output is correct
15 Correct 1 ms 1572 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 668 KB Output is correct
19 Correct 4 ms 4172 KB Output is correct
20 Correct 3 ms 3148 KB Output is correct
21 Correct 1 ms 1100 KB Output is correct
22 Correct 359 ms 10700 KB Output is correct
23 Correct 354 ms 10700 KB Output is correct
24 Correct 333 ms 10700 KB Output is correct
25 Correct 179 ms 10664 KB Output is correct
26 Correct 167 ms 10604 KB Output is correct
27 Correct 162 ms 10624 KB Output is correct
28 Correct 164 ms 10680 KB Output is correct
29 Correct 37 ms 8012 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 7 ms 4132 KB Output is correct
3 Correct 7 ms 4172 KB Output is correct
4 Correct 7 ms 4172 KB Output is correct
5 Correct 5 ms 4172 KB Output is correct
6 Correct 6 ms 4172 KB Output is correct
7 Correct 3 ms 3020 KB Output is correct
8 Correct 3 ms 3036 KB Output is correct
9 Correct 5 ms 4172 KB Output is correct
10 Correct 5 ms 4172 KB Output is correct
11 Correct 6 ms 4148 KB Output is correct
12 Correct 7 ms 4172 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 1056 KB Output is correct
15 Correct 1 ms 1572 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 359 ms 10700 KB Output is correct
18 Correct 354 ms 10700 KB Output is correct
19 Correct 333 ms 10700 KB Output is correct
20 Correct 179 ms 10664 KB Output is correct
21 Correct 167 ms 10604 KB Output is correct
22 Correct 162 ms 10624 KB Output is correct
23 Correct 164 ms 10680 KB Output is correct
24 Correct 37 ms 8012 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 668 KB Output is correct
27 Correct 4 ms 4172 KB Output is correct
28 Correct 3 ms 3148 KB Output is correct
29 Correct 1 ms 1100 KB Output is correct
30 Execution timed out 5057 ms 26444 KB Time limit exceeded
31 Halted 0 ms 0 KB -

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 7 ms 4132 KB Output is correct
3 Correct 7 ms 4172 KB Output is correct
4 Correct 7 ms 4172 KB Output is correct
5 Correct 5 ms 4172 KB Output is correct
6 Correct 6 ms 4172 KB Output is correct
7 Correct 3 ms 3020 KB Output is correct
8 Correct 3 ms 3036 KB Output is correct
9 Correct 5 ms 4172 KB Output is correct
10 Correct 5 ms 4172 KB Output is correct
11 Correct 6 ms 4148 KB Output is correct
12 Correct 7 ms 4172 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 1056 KB Output is correct
15 Correct 1 ms 1572 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 359 ms 10700 KB Output is correct
18 Correct 354 ms 10700 KB Output is correct
19 Correct 333 ms 10700 KB Output is correct
20 Correct 179 ms 10664 KB Output is correct
21 Correct 167 ms 10604 KB Output is correct
22 Correct 162 ms 10624 KB Output is correct
23 Correct 164 ms 10680 KB Output is correct
24 Correct 37 ms 8012 KB Output is correct
25 Execution timed out 5057 ms 26444 KB Time limit exceeded
26 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 328 ms 161008 KB Output is correct
2 Correct 250 ms 136848 KB Output is correct
3 Correct 263 ms 161016 KB Output is correct
4 Correct 1 ms 588 KB Output is correct
5 Correct 319 ms 161056 KB Output is correct
6 Correct 262 ms 161076 KB Output is correct
7 Correct 263 ms 161056 KB Output is correct
8 Correct 260 ms 161032 KB Output is correct
9 Correct 261 ms 161060 KB Output is correct
10 Correct 93 ms 160796 KB Output is correct
11 Correct 89 ms 160940 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 668 KB Output is correct
3 Correct 4 ms 4172 KB Output is correct
4 Correct 3 ms 3148 KB Output is correct
5 Correct 1 ms 1100 KB Output is correct
6 Correct 1 ms 1612 KB Output is correct
7 Execution timed out 5074 ms 255488 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 7 ms 4132 KB Output is correct
3 Correct 7 ms 4172 KB Output is correct
4 Correct 7 ms 4172 KB Output is correct
5 Correct 5 ms 4172 KB Output is correct
6 Correct 6 ms 4172 KB Output is correct
7 Correct 3 ms 3020 KB Output is correct
8 Correct 3 ms 3036 KB Output is correct
9 Correct 5 ms 4172 KB Output is correct
10 Correct 5 ms 4172 KB Output is correct
11 Correct 6 ms 4148 KB Output is correct
12 Correct 7 ms 4172 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 1056 KB Output is correct
15 Correct 1 ms 1572 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 359 ms 10700 KB Output is correct
18 Correct 354 ms 10700 KB Output is correct
19 Correct 333 ms 10700 KB Output is correct
20 Correct 179 ms 10664 KB Output is correct
21 Correct 167 ms 10604 KB Output is correct
22 Correct 162 ms 10624 KB Output is correct
23 Correct 164 ms 10680 KB Output is correct
24 Correct 37 ms 8012 KB Output is correct
25 Execution timed out 5057 ms 26444 KB Time limit exceeded
26 Halted 0 ms 0 KB -