oj.uz

Submission #211331

# Submission time Handle Problem Language Result Execution time Memory
211331 2020-03-20T05:45:30 Z super_j6 Rectangles (IOI19_rect) C++14
100 / 100
 1157 ms 260576 KB 
#include "rect.h"
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string.h>
#include <vector>
using namespace std;
#define endl '\n'
#define pi pair<int, int>
#define f first
#define s second

const int maxn = 2501;
int n, m;
int bit[maxn];
int a[2][maxn][maxn], lst[2][maxn][maxn], cnt[2][maxn][maxn];
vector<pi> p[2]; 
vector<int> s[2][maxn];

void add(int x, int v){
	for(x++; x < maxn; x += x & -x) bit[x] += v;
}

int qry(int x){
	int ret = 0;
	for(x++; x; x -= x & -x) ret += bit[x];
	return ret;
}

long long count_rectangles(vector<vector<int>> A){
	n = A.size(), m = A[0].size();
	
	for(int i = 0; i < n; i++) s[0][i].push_back(0);
	for(int i = 0; i < m; i++) s[1][i].push_back(0);
	
	long long ret = 0;
	for(int i = 0; i < n - 1; i++)
	for(int j = 0; j < m - 1; j++){
		a[0][i][j] = a[1][j][i] = A[i][j];
		a[0][i][j + 1] = A[i][j + 1];
		a[1][j][i + 1] = A[i + 1][j];
		for(int t = 0; t < 2; t++){
			bool eq = 0;
			p[t].clear();
			while(!s[t][i].empty()){
				int c = s[t][i].back();
				if(c < j && !eq){
					if(lst[t][c][j + 1] != i - 1) cnt[t][c][j + 1] = 0;
					cnt[t][c][j + 1]++, lst[t][c][j + 1] = i;
					p[t].push_back({j - c, cnt[t][c][j + 1]});
					if(t) swap(p[t].back().f, p[t].back().s);
				}
				eq = a[t][i][c] == a[t][i][j + 1];
				if(a[t][i][c] <= a[t][i][j + 1]) s[t][i].pop_back();
				else break;
			}
			s[t][i].push_back(j + 1);
			swap(i, j);
			sort(p[t].begin(), p[t].end(), greater<pi>());
		}
		int it = 0;
		for(pi v : p[0]){
			for(; it < p[1].size() && v.f <= p[1][it].f; it++) add(p[1][it].s, 1);
			ret += qry(v.s);
		}
		for(int jt = 0; jt < it; jt++) add(p[1][jt].s, -1);
	}
	
	return ret;
}

Compilation message

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:63:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(; it < p[1].size() && v.f <= p[1][it].f; it++) add(p[1][it].s, 1);
          ~~~^~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 5 ms 1152 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 5 ms 1152 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 1152 KB Output is correct
10 Correct 5 ms 1072 KB Output is correct
11 Correct 5 ms 1152 KB Output is correct
12 Correct 5 ms 1152 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 512 KB Output is correct
19 Correct 5 ms 1152 KB Output is correct
20 Correct 5 ms 640 KB Output is correct
21 Correct 5 ms 512 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 5 ms 1152 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 5 ms 1152 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 1152 KB Output is correct
10 Correct 5 ms 1072 KB Output is correct
11 Correct 5 ms 1152 KB Output is correct
12 Correct 5 ms 1152 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 6 ms 2560 KB Output is correct
18 Correct 6 ms 2560 KB Output is correct
19 Correct 6 ms 2560 KB Output is correct
20 Correct 6 ms 2432 KB Output is correct
21 Correct 6 ms 2560 KB Output is correct
22 Correct 7 ms 2560 KB Output is correct
23 Correct 7 ms 2560 KB Output is correct
24 Correct 6 ms 2048 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 1152 KB Output is correct
28 Correct 5 ms 640 KB Output is correct
29 Correct 5 ms 512 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 5 ms 1152 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 5 ms 1152 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 1152 KB Output is correct
10 Correct 5 ms 1072 KB Output is correct
11 Correct 5 ms 1152 KB Output is correct
12 Correct 5 ms 1152 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 6 ms 2560 KB Output is correct
18 Correct 6 ms 2560 KB Output is correct
19 Correct 6 ms 2560 KB Output is correct
20 Correct 6 ms 2432 KB Output is correct
21 Correct 6 ms 2560 KB Output is correct
22 Correct 7 ms 2560 KB Output is correct
23 Correct 7 ms 2560 KB Output is correct
24 Correct 6 ms 2048 KB Output is correct
25 Correct 12 ms 6528 KB Output is correct
26 Correct 12 ms 6528 KB Output is correct
27 Correct 12 ms 6656 KB Output is correct
28 Correct 10 ms 6016 KB Output is correct
29 Correct 13 ms 6272 KB Output is correct
30 Correct 13 ms 6528 KB Output is correct
31 Correct 13 ms 6272 KB Output is correct
32 Correct 14 ms 6272 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 512 KB Output is correct
35 Correct 5 ms 1152 KB Output is correct
36 Correct 5 ms 640 KB Output is correct
37 Correct 5 ms 512 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 5 ms 1152 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 5 ms 1152 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 1152 KB Output is correct
10 Correct 5 ms 1072 KB Output is correct
11 Correct 5 ms 1152 KB Output is correct
12 Correct 5 ms 1152 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 6 ms 2560 KB Output is correct
18 Correct 6 ms 2560 KB Output is correct
19 Correct 6 ms 2560 KB Output is correct
20 Correct 6 ms 2432 KB Output is correct
21 Correct 6 ms 2560 KB Output is correct
22 Correct 7 ms 2560 KB Output is correct
23 Correct 7 ms 2560 KB Output is correct
24 Correct 6 ms 2048 KB Output is correct
25 Correct 12 ms 6528 KB Output is correct
26 Correct 12 ms 6528 KB Output is correct
27 Correct 12 ms 6656 KB Output is correct
28 Correct 10 ms 6016 KB Output is correct
29 Correct 13 ms 6272 KB Output is correct
30 Correct 13 ms 6528 KB Output is correct
31 Correct 13 ms 6272 KB Output is correct
32 Correct 14 ms 6272 KB Output is correct
33 Correct 79 ms 34936 KB Output is correct
34 Correct 71 ms 34936 KB Output is correct
35 Correct 75 ms 34936 KB Output is correct
36 Correct 71 ms 34936 KB Output is correct
37 Correct 84 ms 34040 KB Output is correct
38 Correct 83 ms 33916 KB Output is correct
39 Correct 87 ms 34296 KB Output is correct
40 Correct 79 ms 33016 KB Output is correct
41 Correct 51 ms 26104 KB Output is correct
42 Correct 59 ms 26488 KB Output is correct
43 Correct 92 ms 29688 KB Output is correct
44 Correct 99 ms 31736 KB Output is correct
45 Correct 52 ms 20600 KB Output is correct
46 Correct 54 ms 20600 KB Output is correct
47 Correct 94 ms 28536 KB Output is correct
48 Correct 95 ms 29688 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 512 KB Output is correct
51 Correct 5 ms 1152 KB Output is correct
52 Correct 5 ms 640 KB Output is correct
53 Correct 5 ms 512 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 30848 KB Output is correct
2 Correct 18 ms 26368 KB Output is correct
3 Correct 9 ms 10624 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 19 ms 26112 KB Output is correct
6 Correct 26 ms 25720 KB Output is correct
7 Correct 19 ms 25984 KB Output is correct
8 Correct 18 ms 24960 KB Output is correct
9 Correct 18 ms 24832 KB Output is correct
10 Correct 5 ms 640 KB Output is correct
11 Correct 15 ms 20864 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 640 KB Output is correct
2 Correct 268 ms 90104 KB Output is correct
3 Correct 511 ms 150928 KB Output is correct
4 Correct 569 ms 151532 KB Output is correct
5 Correct 525 ms 151544 KB Output is correct
6 Correct 162 ms 65016 KB Output is correct
7 Correct 305 ms 105592 KB Output is correct
8 Correct 342 ms 110968 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 5 ms 1152 KB Output is correct
12 Correct 5 ms 640 KB Output is correct
13 Correct 5 ms 512 KB Output is correct

Subtask #7
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 5 ms 1152 KB Output is correct
5 Correct 5 ms 768 KB Output is correct
6 Correct 5 ms 1152 KB Output is correct
7 Correct 5 ms 896 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 5 ms 1152 KB Output is correct
10 Correct 5 ms 1072 KB Output is correct
11 Correct 5 ms 1152 KB Output is correct
12 Correct 5 ms 1152 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 6 ms 2560 KB Output is correct
18 Correct 6 ms 2560 KB Output is correct
19 Correct 6 ms 2560 KB Output is correct
20 Correct 6 ms 2432 KB Output is correct
21 Correct 6 ms 2560 KB Output is correct
22 Correct 7 ms 2560 KB Output is correct
23 Correct 7 ms 2560 KB Output is correct
24 Correct 6 ms 2048 KB Output is correct
25 Correct 12 ms 6528 KB Output is correct
26 Correct 12 ms 6528 KB Output is correct
27 Correct 12 ms 6656 KB Output is correct
28 Correct 10 ms 6016 KB Output is correct
29 Correct 13 ms 6272 KB Output is correct
30 Correct 13 ms 6528 KB Output is correct
31 Correct 13 ms 6272 KB Output is correct
32 Correct 14 ms 6272 KB Output is correct
33 Correct 79 ms 34936 KB Output is correct
34 Correct 71 ms 34936 KB Output is correct
35 Correct 75 ms 34936 KB Output is correct
36 Correct 71 ms 34936 KB Output is correct
37 Correct 84 ms 34040 KB Output is correct
38 Correct 83 ms 33916 KB Output is correct
39 Correct 87 ms 34296 KB Output is correct
40 Correct 79 ms 33016 KB Output is correct
41 Correct 51 ms 26104 KB Output is correct
42 Correct 59 ms 26488 KB Output is correct
43 Correct 92 ms 29688 KB Output is correct
44 Correct 99 ms 31736 KB Output is correct
45 Correct 52 ms 20600 KB Output is correct
46 Correct 54 ms 20600 KB Output is correct
47 Correct 94 ms 28536 KB Output is correct
48 Correct 95 ms 29688 KB Output is correct
49 Correct 20 ms 30848 KB Output is correct
50 Correct 18 ms 26368 KB Output is correct
51 Correct 9 ms 10624 KB Output is correct
52 Correct 4 ms 384 KB Output is correct
53 Correct 19 ms 26112 KB Output is correct
54 Correct 26 ms 25720 KB Output is correct
55 Correct 19 ms 25984 KB Output is correct
56 Correct 18 ms 24960 KB Output is correct
57 Correct 18 ms 24832 KB Output is correct
58 Correct 5 ms 640 KB Output is correct
59 Correct 15 ms 20864 KB Output is correct
60 Correct 5 ms 640 KB Output is correct
61 Correct 268 ms 90104 KB Output is correct
62 Correct 511 ms 150928 KB Output is correct
63 Correct 569 ms 151532 KB Output is correct
64 Correct 525 ms 151544 KB Output is correct
65 Correct 162 ms 65016 KB Output is correct
66 Correct 305 ms 105592 KB Output is correct
67 Correct 342 ms 110968 KB Output is correct
68 Correct 839 ms 260576 KB Output is correct
69 Correct 781 ms 259960 KB Output is correct
70 Correct 870 ms 260472 KB Output is correct
71 Correct 803 ms 260472 KB Output is correct
72 Correct 960 ms 258556 KB Output is correct
73 Correct 624 ms 133368 KB Output is correct
74 Correct 702 ms 150368 KB Output is correct
75 Correct 1035 ms 189048 KB Output is correct
76 Correct 678 ms 153208 KB Output is correct
77 Correct 917 ms 187768 KB Output is correct
78 Correct 1157 ms 222308 KB Output is correct
79 Correct 640 ms 126584 KB Output is correct
80 Correct 1114 ms 194424 KB Output is correct
81 Correct 1079 ms 189052 KB Output is correct
82 Correct 592 ms 172792 KB Output is correct
83 Correct 974 ms 258680 KB Output is correct
84 Correct 977 ms 258552 KB Output is correct
85 Correct 969 ms 258552 KB Output is correct
86 Correct 5 ms 384 KB Output is correct
87 Correct 5 ms 512 KB Output is correct
88 Correct 5 ms 1152 KB Output is correct
89 Correct 5 ms 640 KB Output is correct
90 Correct 5 ms 512 KB Output is correct