oj.uz

Submission #1046020

# Submission time Handle Problem Language Result Execution time Memory
1046020 2024-08-06T09:01:26 Z vjudge1 Rectangles (IOI19_rect) C++17
72 / 100
 5000 ms 867964 KB 
#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize(2)
#define all(x) x.begin(),x.end()
#define HAS(a,b) (lower_bound(all(a),b)!=upper_bound(all(a),b))
vector<int>pos[2501][2501],pos2[2501][2501],stb[2501][20];
vector<int> operator & (const vector<int>&a,const vector<int>&b){
    vector<int>c;
    if(a.size()<b.size()){
        for(auto i:a)
            if(HAS(b,i))
                c.push_back(i);
    } else for(auto i:b)
        if(HAS(a,i))
            c.push_back(i);
    return c;
}
vector<array<int,4>> ops;
int CC;
vector<int>res;
int calc(int r1,int r2,int beg){
    for(int i=20;i--;)
        if(HAS(stb[beg][i],r2))
            beg+=1<<i;
    return beg-1;
}
int cnt(int l,int r,int col){
    int x=31-__builtin_clz(r-l+1);
    vector<int>k=stb[l][x]&stb[r-(1<<x)+1][x];
    return upper_bound(k.begin(),k.end(),res[CC++])-k.begin();
}
long long count_rectangles(std::vector<std::vector<int> > a) {
    int n=a.size(),m=a[0].size();
    int ans=0;
    for(int i=1;i<n-1;i++){
        stack<int>stk;
        stk.push(m-1);
        for(int j=m-1;j--;){
            while(stk.size()&&a[i][j]>a[i][stk.top()])
                pos[i][j+1].push_back(stk.top()-1),stk.pop();
            if(stk.size()){
                pos[i][j+1].push_back(stk.top()-1);
                if(a[i][stk.top()]==a[i][j])
                    stk.pop();
            }
            stk.push(j);
            if(pos[i][j+1].size())
                pos[i][j+1].erase(pos[i][j+1].begin());
        }
    }
    for(int j=1;j<m-1;j++){
        stack<int>stk;
        stk.push(n-1);
        for(int i=n-1;i--;){
            while(stk.size()&&a[i][j]>a[stk.top()][j])
                pos2[i+1][j].push_back(stk.top()-1),stk.pop(); 
            if(stk.size()){
                pos2[i+1][j].push_back(stk.top()-1);
                if(a[stk.top()][j]==a[i][j])
                    stk.pop();
            }
            stk.push(i);
            if(pos2[i+1][j].size())
                pos2[i+1][j].erase(pos2[i+1][j].begin());
        }
    }
    for(int j=1;j<m-1;j++)
        for(int i=1;i<n-1;i++)
            for(auto x:pos2[i][j])
                ops.push_back({i,x,j,CC++});
    res.resize(CC);
    CC=0;
    sort(ops.begin(),ops.end());
    int currr=0;
    for(auto[r1,r2,col,id]:ops){
        if(r1-currr) {
            currr=r1;
            for(int i=1;i<m-1;i++)
                stb[i][0]=pos2[r1][i];
            for(int j=1;j<20;j++) for(int i=1;i+(1<<j)<m;i++)
                stb[i][j]=stb[i][j-1]&stb[i+(1<<j-1)][j-1];
        }
        res[id]=calc(r1,r2,col);
    }
    ops.clear();
    for(int col=1;col<m-1;col++){
        for(int i=1;i<n-1;i++)
            stb[i][0]=pos[i][col];
        for(int j=1;j<20;j++) for(int i=1;i+(1<<j)<n;i++)
            stb[i][j]=stb[i][j-1]&stb[i+(1<<j-1)][j-1];
        for(int row1=1;row1<n-1;row1++)
            for(auto row2:pos2[row1][col])
                ans+=cnt(row1,row2,col);
    }
    return ans;
}

Compilation message

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:82:50: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   82 |                 stb[i][j]=stb[i][j-1]&stb[i+(1<<j-1)][j-1];
      |                                                 ~^~
rect.cpp:91:46: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   91 |             stb[i][j]=stb[i][j-1]&stb[i+(1<<j-1)][j-1];
      |                                             ~^~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 295248 KB Output is correct
2 Correct 48 ms 295260 KB Output is correct
3 Correct 41 ms 295252 KB Output is correct
4 Correct 45 ms 295400 KB Output is correct
5 Correct 43 ms 295260 KB Output is correct
6 Correct 40 ms 295276 KB Output is correct
7 Correct 41 ms 295256 KB Output is correct
8 Correct 42 ms 295348 KB Output is correct
9 Correct 41 ms 295360 KB Output is correct
10 Correct 55 ms 295312 KB Output is correct
11 Correct 41 ms 295252 KB Output is correct
12 Correct 40 ms 295248 KB Output is correct
13 Correct 43 ms 295260 KB Output is correct
14 Correct 53 ms 295260 KB Output is correct
15 Correct 40 ms 295312 KB Output is correct
16 Correct 40 ms 295248 KB Output is correct
17 Correct 39 ms 295264 KB Output is correct
18 Correct 40 ms 295504 KB Output is correct
19 Correct 39 ms 295200 KB Output is correct
20 Correct 50 ms 295252 KB Output is correct
21 Correct 44 ms 295248 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 295248 KB Output is correct
2 Correct 48 ms 295260 KB Output is correct
3 Correct 41 ms 295252 KB Output is correct
4 Correct 45 ms 295400 KB Output is correct
5 Correct 43 ms 295260 KB Output is correct
6 Correct 40 ms 295276 KB Output is correct
7 Correct 41 ms 295256 KB Output is correct
8 Correct 42 ms 295348 KB Output is correct
9 Correct 41 ms 295360 KB Output is correct
10 Correct 55 ms 295312 KB Output is correct
11 Correct 41 ms 295252 KB Output is correct
12 Correct 40 ms 295248 KB Output is correct
13 Correct 43 ms 295260 KB Output is correct
14 Correct 53 ms 295260 KB Output is correct
15 Correct 40 ms 295312 KB Output is correct
16 Correct 40 ms 295248 KB Output is correct
17 Correct 39 ms 295264 KB Output is correct
18 Correct 40 ms 295504 KB Output is correct
19 Correct 39 ms 295200 KB Output is correct
20 Correct 50 ms 295252 KB Output is correct
21 Correct 44 ms 295248 KB Output is correct
22 Correct 56 ms 296028 KB Output is correct
23 Correct 43 ms 296016 KB Output is correct
24 Correct 43 ms 296028 KB Output is correct
25 Correct 42 ms 295772 KB Output is correct
26 Correct 55 ms 296020 KB Output is correct
27 Correct 42 ms 296016 KB Output is correct
28 Correct 42 ms 296020 KB Output is correct
29 Correct 51 ms 295504 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 295248 KB Output is correct
2 Correct 48 ms 295260 KB Output is correct
3 Correct 41 ms 295252 KB Output is correct
4 Correct 45 ms 295400 KB Output is correct
5 Correct 43 ms 295260 KB Output is correct
6 Correct 40 ms 295276 KB Output is correct
7 Correct 41 ms 295256 KB Output is correct
8 Correct 42 ms 295348 KB Output is correct
9 Correct 41 ms 295360 KB Output is correct
10 Correct 55 ms 295312 KB Output is correct
11 Correct 41 ms 295252 KB Output is correct
12 Correct 40 ms 295248 KB Output is correct
13 Correct 43 ms 295260 KB Output is correct
14 Correct 53 ms 295260 KB Output is correct
15 Correct 40 ms 295312 KB Output is correct
16 Correct 40 ms 295248 KB Output is correct
17 Correct 56 ms 296028 KB Output is correct
18 Correct 43 ms 296016 KB Output is correct
19 Correct 43 ms 296028 KB Output is correct
20 Correct 42 ms 295772 KB Output is correct
21 Correct 55 ms 296020 KB Output is correct
22 Correct 42 ms 296016 KB Output is correct
23 Correct 42 ms 296020 KB Output is correct
24 Correct 51 ms 295504 KB Output is correct
25 Correct 39 ms 295264 KB Output is correct
26 Correct 40 ms 295504 KB Output is correct
27 Correct 39 ms 295200 KB Output is correct
28 Correct 50 ms 295252 KB Output is correct
29 Correct 44 ms 295248 KB Output is correct
30 Correct 64 ms 299208 KB Output is correct
31 Correct 64 ms 299208 KB Output is correct
32 Correct 62 ms 299088 KB Output is correct
33 Correct 59 ms 298444 KB Output is correct
34 Correct 64 ms 299216 KB Output is correct
35 Correct 67 ms 299228 KB Output is correct
36 Correct 67 ms 299176 KB Output is correct
37 Correct 65 ms 299136 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 295248 KB Output is correct
2 Correct 48 ms 295260 KB Output is correct
3 Correct 41 ms 295252 KB Output is correct
4 Correct 45 ms 295400 KB Output is correct
5 Correct 43 ms 295260 KB Output is correct
6 Correct 40 ms 295276 KB Output is correct
7 Correct 41 ms 295256 KB Output is correct
8 Correct 42 ms 295348 KB Output is correct
9 Correct 41 ms 295360 KB Output is correct
10 Correct 55 ms 295312 KB Output is correct
11 Correct 41 ms 295252 KB Output is correct
12 Correct 40 ms 295248 KB Output is correct
13 Correct 43 ms 295260 KB Output is correct
14 Correct 53 ms 295260 KB Output is correct
15 Correct 40 ms 295312 KB Output is correct
16 Correct 40 ms 295248 KB Output is correct
17 Correct 56 ms 296028 KB Output is correct
18 Correct 43 ms 296016 KB Output is correct
19 Correct 43 ms 296028 KB Output is correct
20 Correct 42 ms 295772 KB Output is correct
21 Correct 55 ms 296020 KB Output is correct
22 Correct 42 ms 296016 KB Output is correct
23 Correct 42 ms 296020 KB Output is correct
24 Correct 51 ms 295504 KB Output is correct
25 Correct 64 ms 299208 KB Output is correct
26 Correct 64 ms 299208 KB Output is correct
27 Correct 62 ms 299088 KB Output is correct
28 Correct 59 ms 298444 KB Output is correct
29 Correct 64 ms 299216 KB Output is correct
30 Correct 67 ms 299228 KB Output is correct
31 Correct 67 ms 299176 KB Output is correct
32 Correct 65 ms 299136 KB Output is correct
33 Correct 39 ms 295264 KB Output is correct
34 Correct 40 ms 295504 KB Output is correct
35 Correct 39 ms 295200 KB Output is correct
36 Correct 50 ms 295252 KB Output is correct
37 Correct 44 ms 295248 KB Output is correct
38 Correct 213 ms 334476 KB Output is correct
39 Correct 200 ms 336812 KB Output is correct
40 Correct 197 ms 337224 KB Output is correct
41 Correct 190 ms 338332 KB Output is correct
42 Correct 414 ms 339544 KB Output is correct
43 Correct 375 ms 339456 KB Output is correct
44 Correct 434 ms 339492 KB Output is correct
45 Correct 396 ms 336556 KB Output is correct
46 Correct 177 ms 332216 KB Output is correct
47 Correct 226 ms 335052 KB Output is correct
48 Correct 315 ms 339908 KB Output is correct
49 Correct 337 ms 340152 KB Output is correct
50 Correct 163 ms 317652 KB Output is correct
51 Correct 196 ms 318468 KB Output is correct
52 Correct 324 ms 340184 KB Output is correct
53 Correct 305 ms 340168 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 296552 KB Output is correct
2 Correct 55 ms 296280 KB Output is correct
3 Correct 42 ms 295516 KB Output is correct
4 Correct 39 ms 295304 KB Output is correct
5 Correct 40 ms 295532 KB Output is correct
6 Correct 55 ms 295504 KB Output is correct
7 Correct 53 ms 295508 KB Output is correct
8 Correct 43 ms 295516 KB Output is correct
9 Correct 48 ms 295580 KB Output is correct
10 Correct 39 ms 295248 KB Output is correct
11 Correct 42 ms 295252 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 295264 KB Output is correct
2 Correct 40 ms 295504 KB Output is correct
3 Correct 39 ms 295200 KB Output is correct
4 Correct 50 ms 295252 KB Output is correct
5 Correct 44 ms 295248 KB Output is correct
6 Correct 40 ms 295284 KB Output is correct
7 Correct 993 ms 514392 KB Output is correct
8 Correct 2101 ms 766656 KB Output is correct
9 Correct 2144 ms 768944 KB Output is correct
10 Correct 2169 ms 768956 KB Output is correct
11 Correct 553 ms 512436 KB Output is correct
12 Correct 990 ms 708096 KB Output is correct
13 Correct 1008 ms 735392 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 295248 KB Output is correct
2 Correct 48 ms 295260 KB Output is correct
3 Correct 41 ms 295252 KB Output is correct
4 Correct 45 ms 295400 KB Output is correct
5 Correct 43 ms 295260 KB Output is correct
6 Correct 40 ms 295276 KB Output is correct
7 Correct 41 ms 295256 KB Output is correct
8 Correct 42 ms 295348 KB Output is correct
9 Correct 41 ms 295360 KB Output is correct
10 Correct 55 ms 295312 KB Output is correct
11 Correct 41 ms 295252 KB Output is correct
12 Correct 40 ms 295248 KB Output is correct
13 Correct 43 ms 295260 KB Output is correct
14 Correct 53 ms 295260 KB Output is correct
15 Correct 40 ms 295312 KB Output is correct
16 Correct 40 ms 295248 KB Output is correct
17 Correct 56 ms 296028 KB Output is correct
18 Correct 43 ms 296016 KB Output is correct
19 Correct 43 ms 296028 KB Output is correct
20 Correct 42 ms 295772 KB Output is correct
21 Correct 55 ms 296020 KB Output is correct
22 Correct 42 ms 296016 KB Output is correct
23 Correct 42 ms 296020 KB Output is correct
24 Correct 51 ms 295504 KB Output is correct
25 Correct 64 ms 299208 KB Output is correct
26 Correct 64 ms 299208 KB Output is correct
27 Correct 62 ms 299088 KB Output is correct
28 Correct 59 ms 298444 KB Output is correct
29 Correct 64 ms 299216 KB Output is correct
30 Correct 67 ms 299228 KB Output is correct
31 Correct 67 ms 299176 KB Output is correct
32 Correct 65 ms 299136 KB Output is correct
33 Correct 213 ms 334476 KB Output is correct
34 Correct 200 ms 336812 KB Output is correct
35 Correct 197 ms 337224 KB Output is correct
36 Correct 190 ms 338332 KB Output is correct
37 Correct 414 ms 339544 KB Output is correct
38 Correct 375 ms 339456 KB Output is correct
39 Correct 434 ms 339492 KB Output is correct
40 Correct 396 ms 336556 KB Output is correct
41 Correct 177 ms 332216 KB Output is correct
42 Correct 226 ms 335052 KB Output is correct
43 Correct 315 ms 339908 KB Output is correct
44 Correct 337 ms 340152 KB Output is correct
45 Correct 163 ms 317652 KB Output is correct
46 Correct 196 ms 318468 KB Output is correct
47 Correct 324 ms 340184 KB Output is correct
48 Correct 305 ms 340168 KB Output is correct
49 Correct 44 ms 296552 KB Output is correct
50 Correct 55 ms 296280 KB Output is correct
51 Correct 42 ms 295516 KB Output is correct
52 Correct 39 ms 295304 KB Output is correct
53 Correct 40 ms 295532 KB Output is correct
54 Correct 55 ms 295504 KB Output is correct
55 Correct 53 ms 295508 KB Output is correct
56 Correct 43 ms 295516 KB Output is correct
57 Correct 48 ms 295580 KB Output is correct
58 Correct 39 ms 295248 KB Output is correct
59 Correct 42 ms 295252 KB Output is correct
60 Correct 40 ms 295284 KB Output is correct
61 Correct 993 ms 514392 KB Output is correct
62 Correct 2101 ms 766656 KB Output is correct
63 Correct 2144 ms 768944 KB Output is correct
64 Correct 2169 ms 768956 KB Output is correct
65 Correct 553 ms 512436 KB Output is correct
66 Correct 990 ms 708096 KB Output is correct
67 Correct 1008 ms 735392 KB Output is correct
68 Correct 39 ms 295264 KB Output is correct
69 Correct 40 ms 295504 KB Output is correct
70 Correct 39 ms 295200 KB Output is correct
71 Correct 50 ms 295252 KB Output is correct
72 Correct 44 ms 295248 KB Output is correct
73 Correct 2239 ms 802728 KB Output is correct
74 Correct 2572 ms 827288 KB Output is correct
75 Correct 2655 ms 827176 KB Output is correct
76 Correct 2531 ms 844464 KB Output is correct
77 Execution timed out 5040 ms 867964 KB Time limit exceeded
78 Halted 0 ms 0 KB -