oj.uz

Submission #285452

# Submission time Handle Problem Language Result Execution time Memory
285452 2020-08-29T03:31:09 Z caoash Rectangles (IOI19_rect) C++14
72 / 100
 5000 ms 832228 KB 
    #include "rect.h"
    #include <bits/stdc++.h>
    using namespace std;
     
    #define ar array
     
    const int mxN=2.5e3;
    int n, m, l[mxN], r[mxN], ft[mxN+1];
    vector<ar<int, 2>> p[mxN][mxN][2];
     
    void upd(int i, int x) {
    	for(++i; i<=m; i+=i&-i)
    		ft[i]+=x;
    }
     
    int qry(int i) {
    	int r=0;
    	for(; i; i-=i&-i)
    		r+=ft[i];
    	return r;
    }
     
    void gr(vector<vector<int>> &a, int b) {
    	int n=a.size(), m=a[0].size();
    	vector<ar<int, 3>> s;
    	for(int i=0; i<n; ++i) {
    		for(int j=0; j<m; ++j) {
    			l[j]=j-1;
    			while(~l[j]&&a[i][l[j]]<=a[i][j])
    				l[j]=l[l[j]];
    		}
    		for(int j=m-1; ~j; --j) {
    			r[j]=j+1;
    			while(r[j]<m&&a[i][r[j]]<=a[i][j])
    				r[j]=r[r[j]];
    			if(~l[j]&&r[j]<m)
    				s.push_back({l[j]+1, r[j]-1, i});
    		}
    	}
    	sort(s.begin(), s.end());
    	for(int i=0, j; i<s.size(); i=j+1) {
    		for(j=i; j+1<s.size()&&s[j+1][0]==s[i][0]&&s[j+1][1]==s[i][1]&&s[j+1][2]<=s[j][2]+1; ++j);
    		int l1=s[i][0], r1=s[i][1], l2=s[i][2], r2=s[j][2], x2=r2, y2=r1;
    		if(b)
    			swap(x2, y2);
    		for(int k=l2; k<=r2; ++k) {
    			int x=k, y=l1;
    			if(b)
    				swap(x, y);
    			p[x][y][b].push_back({-x2, y2});
    		}
    	}
    }
     
    long long count_rectangles(vector<vector<int>> a) {
    	n=a.size();
    	m=a[0].size();
    	vector<vector<int>> b(m, vector<int>(n));
    	for(int i=0; i<n; ++i)
    		for(int j=0; j<m; ++j)
    			b[j][i]=a[i][j];
    	gr(a, 0);
    	gr(b, 1);
    	int ans=0;
    	for(int i=1; i<n-1; ++i) {
    		for(int j=1; j<m-1; ++j) {
    			for(int k : {0, 1})
    				sort(p[i][j][k].begin(), p[i][j][k].end());
    			int d=0;
    			for(int c=0; c<p[i][j][1].size(); ++c) {
    				while(d<p[i][j][0].size()&&p[i][j][0][d]<=p[i][j][1][c])
    					upd(p[i][j][0][d++][1], 1);
    				ans+=qry(p[i][j][1][c][1]+1);
    			}
    			while(d)
    				upd(p[i][j][0][--d][1], -1);
    		}
    	}
    	return ans;
    }

Compilation message

rect.cpp: In function 'void gr(std::vector<std::vector<int> >&, int)':
rect.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |      for(int i=0, j; i<s.size(); i=j+1) {
      |                      ~^~~~~~~~~
rect.cpp:42:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |       for(j=i; j+1<s.size()&&s[j+1][0]==s[i][0]&&s[j+1][1]==s[i][1]&&s[j+1][2]<=s[j][2]+1; ++j);
      |                ~~~^~~~~~~~~
rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:70:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |        for(int c=0; c<p[i][j][1].size(); ++c) {
      |                     ~^~~~~~~~~~~~~~~~~~
rect.cpp:71:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |         while(d<p[i][j][0].size()&&p[i][j][0][d]<=p[i][j][1][c])
      |               ~^~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 293880 KB Output is correct
2 Correct 198 ms 294008 KB Output is correct
3 Correct 197 ms 294008 KB Output is correct
4 Correct 198 ms 293880 KB Output is correct
5 Correct 203 ms 293880 KB Output is correct
6 Correct 196 ms 294008 KB Output is correct
7 Correct 199 ms 293880 KB Output is correct
8 Correct 199 ms 293832 KB Output is correct
9 Correct 199 ms 293884 KB Output is correct
10 Correct 201 ms 293880 KB Output is correct
11 Correct 196 ms 293880 KB Output is correct
12 Correct 201 ms 293880 KB Output is correct
13 Correct 203 ms 293880 KB Output is correct
14 Correct 212 ms 293880 KB Output is correct
15 Correct 206 ms 293880 KB Output is correct
16 Correct 197 ms 293880 KB Output is correct
17 Correct 199 ms 294008 KB Output is correct
18 Correct 197 ms 294008 KB Output is correct
19 Correct 198 ms 293880 KB Output is correct
20 Correct 197 ms 294008 KB Output is correct
21 Correct 199 ms 293880 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 293880 KB Output is correct
2 Correct 198 ms 294008 KB Output is correct
3 Correct 197 ms 294008 KB Output is correct
4 Correct 198 ms 293880 KB Output is correct
5 Correct 203 ms 293880 KB Output is correct
6 Correct 196 ms 294008 KB Output is correct
7 Correct 199 ms 293880 KB Output is correct
8 Correct 199 ms 293832 KB Output is correct
9 Correct 199 ms 293884 KB Output is correct
10 Correct 201 ms 293880 KB Output is correct
11 Correct 196 ms 293880 KB Output is correct
12 Correct 201 ms 293880 KB Output is correct
13 Correct 203 ms 293880 KB Output is correct
14 Correct 212 ms 293880 KB Output is correct
15 Correct 206 ms 293880 KB Output is correct
16 Correct 197 ms 293880 KB Output is correct
17 Correct 200 ms 294392 KB Output is correct
18 Correct 200 ms 294392 KB Output is correct
19 Correct 200 ms 294480 KB Output is correct
20 Correct 199 ms 294264 KB Output is correct
21 Correct 200 ms 294264 KB Output is correct
22 Correct 202 ms 294264 KB Output is correct
23 Correct 203 ms 294264 KB Output is correct
24 Correct 200 ms 294136 KB Output is correct
25 Correct 199 ms 294008 KB Output is correct
26 Correct 197 ms 294008 KB Output is correct
27 Correct 198 ms 293880 KB Output is correct
28 Correct 197 ms 294008 KB Output is correct
29 Correct 199 ms 293880 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 293880 KB Output is correct
2 Correct 198 ms 294008 KB Output is correct
3 Correct 197 ms 294008 KB Output is correct
4 Correct 198 ms 293880 KB Output is correct
5 Correct 203 ms 293880 KB Output is correct
6 Correct 196 ms 294008 KB Output is correct
7 Correct 199 ms 293880 KB Output is correct
8 Correct 199 ms 293832 KB Output is correct
9 Correct 199 ms 293884 KB Output is correct
10 Correct 201 ms 293880 KB Output is correct
11 Correct 196 ms 293880 KB Output is correct
12 Correct 201 ms 293880 KB Output is correct
13 Correct 203 ms 293880 KB Output is correct
14 Correct 212 ms 293880 KB Output is correct
15 Correct 206 ms 293880 KB Output is correct
16 Correct 197 ms 293880 KB Output is correct
17 Correct 200 ms 294392 KB Output is correct
18 Correct 200 ms 294392 KB Output is correct
19 Correct 200 ms 294480 KB Output is correct
20 Correct 199 ms 294264 KB Output is correct
21 Correct 200 ms 294264 KB Output is correct
22 Correct 202 ms 294264 KB Output is correct
23 Correct 203 ms 294264 KB Output is correct
24 Correct 200 ms 294136 KB Output is correct
25 Correct 222 ms 297500 KB Output is correct
26 Correct 218 ms 297500 KB Output is correct
27 Correct 225 ms 297628 KB Output is correct
28 Correct 214 ms 295616 KB Output is correct
29 Correct 226 ms 296516 KB Output is correct
30 Correct 225 ms 296628 KB Output is correct
31 Correct 223 ms 296500 KB Output is correct
32 Correct 221 ms 296516 KB Output is correct
33 Correct 199 ms 294008 KB Output is correct
34 Correct 197 ms 294008 KB Output is correct
35 Correct 198 ms 293880 KB Output is correct
36 Correct 197 ms 294008 KB Output is correct
37 Correct 199 ms 293880 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 293880 KB Output is correct
2 Correct 198 ms 294008 KB Output is correct
3 Correct 197 ms 294008 KB Output is correct
4 Correct 198 ms 293880 KB Output is correct
5 Correct 203 ms 293880 KB Output is correct
6 Correct 196 ms 294008 KB Output is correct
7 Correct 199 ms 293880 KB Output is correct
8 Correct 199 ms 293832 KB Output is correct
9 Correct 199 ms 293884 KB Output is correct
10 Correct 201 ms 293880 KB Output is correct
11 Correct 196 ms 293880 KB Output is correct
12 Correct 201 ms 293880 KB Output is correct
13 Correct 203 ms 293880 KB Output is correct
14 Correct 212 ms 293880 KB Output is correct
15 Correct 206 ms 293880 KB Output is correct
16 Correct 197 ms 293880 KB Output is correct
17 Correct 200 ms 294392 KB Output is correct
18 Correct 200 ms 294392 KB Output is correct
19 Correct 200 ms 294480 KB Output is correct
20 Correct 199 ms 294264 KB Output is correct
21 Correct 200 ms 294264 KB Output is correct
22 Correct 202 ms 294264 KB Output is correct
23 Correct 203 ms 294264 KB Output is correct
24 Correct 200 ms 294136 KB Output is correct
25 Correct 222 ms 297500 KB Output is correct
26 Correct 218 ms 297500 KB Output is correct
27 Correct 225 ms 297628 KB Output is correct
28 Correct 214 ms 295616 KB Output is correct
29 Correct 226 ms 296516 KB Output is correct
30 Correct 225 ms 296628 KB Output is correct
31 Correct 223 ms 296500 KB Output is correct
32 Correct 221 ms 296516 KB Output is correct
33 Correct 343 ms 320936 KB Output is correct
34 Correct 319 ms 316200 KB Output is correct
35 Correct 315 ms 316476 KB Output is correct
36 Correct 304 ms 311644 KB Output is correct
37 Correct 493 ms 339312 KB Output is correct
38 Correct 494 ms 339180 KB Output is correct
39 Correct 493 ms 339684 KB Output is correct
40 Correct 468 ms 336724 KB Output is correct
41 Correct 358 ms 311212 KB Output is correct
42 Correct 412 ms 315876 KB Output is correct
43 Correct 563 ms 325068 KB Output is correct
44 Correct 557 ms 327184 KB Output is correct
45 Correct 370 ms 310660 KB Output is correct
46 Correct 373 ms 310480 KB Output is correct
47 Correct 537 ms 324740 KB Output is correct
48 Correct 549 ms 325640 KB Output is correct
49 Correct 199 ms 294008 KB Output is correct
50 Correct 197 ms 294008 KB Output is correct
51 Correct 198 ms 293880 KB Output is correct
52 Correct 197 ms 294008 KB Output is correct
53 Correct 199 ms 293880 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 294524 KB Output is correct
2 Correct 198 ms 294392 KB Output is correct
3 Correct 199 ms 294136 KB Output is correct
4 Correct 196 ms 293880 KB Output is correct
5 Correct 207 ms 294392 KB Output is correct
6 Correct 199 ms 294392 KB Output is correct
7 Correct 210 ms 294484 KB Output is correct
8 Correct 198 ms 294264 KB Output is correct
9 Correct 198 ms 294392 KB Output is correct
10 Correct 205 ms 294136 KB Output is correct
11 Correct 199 ms 294392 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 293880 KB Output is correct
2 Correct 1239 ms 394888 KB Output is correct
3 Correct 2535 ms 502016 KB Output is correct
4 Correct 2564 ms 502988 KB Output is correct
5 Correct 2591 ms 502992 KB Output is correct
6 Correct 334 ms 332100 KB Output is correct
7 Correct 461 ms 364092 KB Output is correct
8 Correct 465 ms 368632 KB Output is correct
9 Correct 199 ms 294008 KB Output is correct
10 Correct 197 ms 294008 KB Output is correct
11 Correct 198 ms 293880 KB Output is correct
12 Correct 197 ms 294008 KB Output is correct
13 Correct 199 ms 293880 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 196 ms 293880 KB Output is correct
2 Correct 198 ms 294008 KB Output is correct
3 Correct 197 ms 294008 KB Output is correct
4 Correct 198 ms 293880 KB Output is correct
5 Correct 203 ms 293880 KB Output is correct
6 Correct 196 ms 294008 KB Output is correct
7 Correct 199 ms 293880 KB Output is correct
8 Correct 199 ms 293832 KB Output is correct
9 Correct 199 ms 293884 KB Output is correct
10 Correct 201 ms 293880 KB Output is correct
11 Correct 196 ms 293880 KB Output is correct
12 Correct 201 ms 293880 KB Output is correct
13 Correct 203 ms 293880 KB Output is correct
14 Correct 212 ms 293880 KB Output is correct
15 Correct 206 ms 293880 KB Output is correct
16 Correct 197 ms 293880 KB Output is correct
17 Correct 200 ms 294392 KB Output is correct
18 Correct 200 ms 294392 KB Output is correct
19 Correct 200 ms 294480 KB Output is correct
20 Correct 199 ms 294264 KB Output is correct
21 Correct 200 ms 294264 KB Output is correct
22 Correct 202 ms 294264 KB Output is correct
23 Correct 203 ms 294264 KB Output is correct
24 Correct 200 ms 294136 KB Output is correct
25 Correct 222 ms 297500 KB Output is correct
26 Correct 218 ms 297500 KB Output is correct
27 Correct 225 ms 297628 KB Output is correct
28 Correct 214 ms 295616 KB Output is correct
29 Correct 226 ms 296516 KB Output is correct
30 Correct 225 ms 296628 KB Output is correct
31 Correct 223 ms 296500 KB Output is correct
32 Correct 221 ms 296516 KB Output is correct
33 Correct 343 ms 320936 KB Output is correct
34 Correct 319 ms 316200 KB Output is correct
35 Correct 315 ms 316476 KB Output is correct
36 Correct 304 ms 311644 KB Output is correct
37 Correct 493 ms 339312 KB Output is correct
38 Correct 494 ms 339180 KB Output is correct
39 Correct 493 ms 339684 KB Output is correct
40 Correct 468 ms 336724 KB Output is correct
41 Correct 358 ms 311212 KB Output is correct
42 Correct 412 ms 315876 KB Output is correct
43 Correct 563 ms 325068 KB Output is correct
44 Correct 557 ms 327184 KB Output is correct
45 Correct 370 ms 310660 KB Output is correct
46 Correct 373 ms 310480 KB Output is correct
47 Correct 537 ms 324740 KB Output is correct
48 Correct 549 ms 325640 KB Output is correct
49 Correct 199 ms 294524 KB Output is correct
50 Correct 198 ms 294392 KB Output is correct
51 Correct 199 ms 294136 KB Output is correct
52 Correct 196 ms 293880 KB Output is correct
53 Correct 207 ms 294392 KB Output is correct
54 Correct 199 ms 294392 KB Output is correct
55 Correct 210 ms 294484 KB Output is correct
56 Correct 198 ms 294264 KB Output is correct
57 Correct 198 ms 294392 KB Output is correct
58 Correct 205 ms 294136 KB Output is correct
59 Correct 199 ms 294392 KB Output is correct
60 Correct 199 ms 293880 KB Output is correct
61 Correct 1239 ms 394888 KB Output is correct
62 Correct 2535 ms 502016 KB Output is correct
63 Correct 2564 ms 502988 KB Output is correct
64 Correct 2591 ms 502992 KB Output is correct
65 Correct 334 ms 332100 KB Output is correct
66 Correct 461 ms 364092 KB Output is correct
67 Correct 465 ms 368632 KB Output is correct
68 Correct 2508 ms 601804 KB Output is correct
69 Correct 1792 ms 535080 KB Output is correct
70 Correct 2123 ms 541376 KB Output is correct
71 Correct 1863 ms 474588 KB Output is correct
72 Execution timed out 5127 ms 832228 KB Time limit exceeded
73 Halted 0 ms 0 KB -