oj.uz

Submission #867609

# Submission time Handle Problem Language Result Execution time Memory
867609 2023-10-28T22:33:46 Z JakobZorz Rectangles (IOI19_rect) C++14
72 / 100
 5000 ms 171868 KB 
#include"rect.h"
#include<algorithm>
#include<unordered_set>
#include<set>
#include<iostream>
using namespace std;
typedef long long ll;
 
int gap_right[2500][2500];
int gap_down[2500][2500];
int gap_left[2500][2500];
int gap_up[2500][2500];
int arr[2500][2500];
int w,h;
 
int get_min_down(int y,int x1,int x2){
    int res=2500;
    for(int x=x1;x<x2;x++)
        res=min(res,gap_down[x][y]);
    return res;
}
 
int get_max_up(int y,int x1,int x2){
    int res=-1;
    for(int x=x1;x<x2;x++)
        res=max(res,gap_up[x][y]);
    return res;
}
 
int get_min_right(int x,int y1,int y2){
    int res=2500;
    for(int y=y1;y<y2;y++)
        res=min(res,gap_right[x][y]);
    return res;
}
 
int get_max_left(int x,int y1,int y2){
    int res=-1;
    for(int y=y1;y<y2;y++)
        res=max(res,gap_left[x][y]);
    return res;
}

void process_column(int x){
    vector<pair<int,int>>vals;
    for(int y=0;y<h;y++){
        while(!vals.empty()&&vals.back().first<arr[x][y])
            vals.pop_back();
        gap_up[x][y]=-1;
        if(!vals.empty())
            gap_up[x][y]=vals.back().second;
        vals.emplace_back(arr[x][y],y);
    }
    
    vals.clear();
    for(int y=h-1;y>=0;y--){
        while(!vals.empty()&&vals.back().first<arr[x][y])
            vals.pop_back();
        gap_down[x][y]=2500;
        if(!vals.empty())
            gap_down[x][y]=vals.back().second;
        vals.emplace_back(arr[x][y],y);
    }
}
 
void process_row(int y){
    vector<pair<int,int>>vals;
    for(int x=0;x<w;x++){
        while(!vals.empty()&&vals.back().first<arr[x][y])
            vals.pop_back();
        gap_left[x][y]=-1;
        if(!vals.empty())
            gap_left[x][y]=vals.back().second;
        vals.emplace_back(arr[x][y],x);
    }
    
    vals.clear();
    for(int x=w;x>=0;x--){
        while(!vals.empty()&&vals.back().first<arr[x][y])
            vals.pop_back();
        gap_right[x][y]=2500;
        if(!vals.empty())
            gap_right[x][y]=vals.back().second;
        vals.emplace_back(arr[x][y],x);
    }
}
 
int check1(int x1,int x2,int y){
    if(x1==-1||x2==2500||x1==x2-1)
        return 0;
    
    int y1=y-1;
    
    int y2=get_min_down(y1,x1+1,x2);
    
    if(y2>=h)
        return 0;
    
    if(y1==y2-1)
        return 0;
    
    for(int x=x1+1;x<x2;x++)
        if((gap_down[x][y1]!=y2&&gap_up[x][y2]!=y1)||gap_down[x][y1]<y2||gap_up[x][y2]>y1)
            return 0;
    
    for(int y=y1+1;y<y2;y++)
        if((gap_right[x1][y]!=x2&&gap_left[x2][y]!=x1)||gap_right[x1][y]<x2||gap_left[x2][y]>x1)
            return 0;
    
    return 1;
}
 
int check2(int x1,int x2,int y){
    if(x1==-1||x2==2500||x1==x2-1)
        return 0;
    
    int y2=y+1;
    
    int y1=get_max_up(y2,x1+1,x2);
    
    if(y1==-1)
        return 0;
    
    if(y1==y2-1)
        return 0;
    
    for(int x=x1+1;x<x2;x++)
        if((gap_down[x][y1]!=y2&&gap_up[x][y2]!=y1)||gap_down[x][y1]<y2||gap_up[x][y2]>y1||gap_down[x][y1]==y2)
            return 0;
    
    for(int y=y1+1;y<y2;y++)
        if((gap_right[x1][y]!=x2&&gap_left[x2][y]!=x1)||gap_right[x1][y]<x2||gap_left[x2][y]>x1)
            return 0;
    
    return 1;
}
 
int check(int x1,int x2,int y){
    return check1(x1,x2,y)+check2(x1,x2,y);
}
 
ll count_rectangles(vector<vector<int>>a_){
    h=(int)a_.size();
    w=(int)a_[0].size();
    for(int x=0;x<w;x++){
        for(int y=0;y<h;y++){
            arr[x][y]=a_[y][x];
        }
    }
    
    for(int x=0;x<w;x++)
        process_column(x);
    
    for(int y=0;y<h;y++)
        process_row(y);
    
    ll res=0;
    for(int x=0;x<w;x++)
        for(int y=1;y<h-1;y++){
            res+=check(x,gap_right[x][y],y);
            if(arr[gap_left[x][y]][y]!=arr[x][y])
                res+=check(gap_left[x][y],x,y);
        }
    
    return res;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 10584 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10596 KB Output is correct
9 Correct 1 ms 10588 KB Output is correct
10 Correct 1 ms 10588 KB Output is correct
11 Correct 1 ms 10588 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 1 ms 8540 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 10584 KB Output is correct
20 Correct 1 ms 8536 KB Output is correct
21 Correct 2 ms 8540 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 10584 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10596 KB Output is correct
9 Correct 1 ms 10588 KB Output is correct
10 Correct 1 ms 10588 KB Output is correct
11 Correct 1 ms 10588 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 1 ms 8540 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 10584 KB Output is correct
20 Correct 1 ms 8536 KB Output is correct
21 Correct 2 ms 8540 KB Output is correct
22 Correct 3 ms 16984 KB Output is correct
23 Correct 3 ms 16988 KB Output is correct
24 Correct 3 ms 16984 KB Output is correct
25 Correct 2 ms 16732 KB Output is correct
26 Correct 3 ms 16732 KB Output is correct
27 Correct 2 ms 16732 KB Output is correct
28 Correct 3 ms 16984 KB Output is correct
29 Correct 2 ms 12632 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 10584 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10596 KB Output is correct
9 Correct 1 ms 10588 KB Output is correct
10 Correct 1 ms 10588 KB Output is correct
11 Correct 1 ms 10588 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 1 ms 8540 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 3 ms 16984 KB Output is correct
18 Correct 3 ms 16988 KB Output is correct
19 Correct 3 ms 16984 KB Output is correct
20 Correct 2 ms 16732 KB Output is correct
21 Correct 3 ms 16732 KB Output is correct
22 Correct 2 ms 16732 KB Output is correct
23 Correct 3 ms 16984 KB Output is correct
24 Correct 2 ms 12632 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 1 ms 8540 KB Output is correct
27 Correct 1 ms 10584 KB Output is correct
28 Correct 1 ms 8536 KB Output is correct
29 Correct 2 ms 8540 KB Output is correct
30 Correct 17 ms 19292 KB Output is correct
31 Correct 16 ms 19292 KB Output is correct
32 Correct 16 ms 19292 KB Output is correct
33 Correct 5 ms 19292 KB Output is correct
34 Correct 7 ms 19292 KB Output is correct
35 Correct 7 ms 19316 KB Output is correct
36 Correct 7 ms 19288 KB Output is correct
37 Correct 6 ms 19288 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 10584 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10596 KB Output is correct
9 Correct 1 ms 10588 KB Output is correct
10 Correct 1 ms 10588 KB Output is correct
11 Correct 1 ms 10588 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 1 ms 8540 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 3 ms 16984 KB Output is correct
18 Correct 3 ms 16988 KB Output is correct
19 Correct 3 ms 16984 KB Output is correct
20 Correct 2 ms 16732 KB Output is correct
21 Correct 3 ms 16732 KB Output is correct
22 Correct 2 ms 16732 KB Output is correct
23 Correct 3 ms 16984 KB Output is correct
24 Correct 2 ms 12632 KB Output is correct
25 Correct 17 ms 19292 KB Output is correct
26 Correct 16 ms 19292 KB Output is correct
27 Correct 16 ms 19292 KB Output is correct
28 Correct 5 ms 19292 KB Output is correct
29 Correct 7 ms 19292 KB Output is correct
30 Correct 7 ms 19316 KB Output is correct
31 Correct 7 ms 19288 KB Output is correct
32 Correct 6 ms 19288 KB Output is correct
33 Correct 1 ms 8540 KB Output is correct
34 Correct 1 ms 8540 KB Output is correct
35 Correct 1 ms 10584 KB Output is correct
36 Correct 1 ms 8536 KB Output is correct
37 Correct 2 ms 8540 KB Output is correct
38 Correct 132 ms 51544 KB Output is correct
39 Correct 143 ms 51548 KB Output is correct
40 Correct 135 ms 51636 KB Output is correct
41 Correct 140 ms 51740 KB Output is correct
42 Correct 634 ms 51644 KB Output is correct
43 Correct 630 ms 51640 KB Output is correct
44 Correct 632 ms 51544 KB Output is correct
45 Correct 571 ms 51536 KB Output is correct
46 Correct 32 ms 51548 KB Output is correct
47 Correct 38 ms 51544 KB Output is correct
48 Correct 60 ms 51548 KB Output is correct
49 Correct 66 ms 51548 KB Output is correct
50 Correct 33 ms 31068 KB Output is correct
51 Correct 36 ms 49500 KB Output is correct
52 Correct 62 ms 51644 KB Output is correct
53 Correct 64 ms 51540 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 122120 KB Output is correct
2 Correct 19 ms 113244 KB Output is correct
3 Correct 14 ms 121968 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 15 ms 121832 KB Output is correct
6 Correct 13 ms 121948 KB Output is correct
7 Correct 13 ms 121988 KB Output is correct
8 Correct 13 ms 121948 KB Output is correct
9 Correct 13 ms 121940 KB Output is correct
10 Correct 13 ms 121948 KB Output is correct
11 Correct 13 ms 121968 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 10584 KB Output is correct
4 Correct 1 ms 8536 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 170 ms 144176 KB Output is correct
8 Correct 367 ms 171616 KB Output is correct
9 Correct 362 ms 171716 KB Output is correct
10 Correct 356 ms 171868 KB Output is correct
11 Correct 98 ms 146892 KB Output is correct
12 Correct 188 ms 167760 KB Output is correct
13 Correct 204 ms 171856 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 1 ms 10588 KB Output is correct
5 Correct 2 ms 10584 KB Output is correct
6 Correct 1 ms 10588 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10596 KB Output is correct
9 Correct 1 ms 10588 KB Output is correct
10 Correct 1 ms 10588 KB Output is correct
11 Correct 1 ms 10588 KB Output is correct
12 Correct 1 ms 10588 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 1 ms 8540 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 3 ms 16984 KB Output is correct
18 Correct 3 ms 16988 KB Output is correct
19 Correct 3 ms 16984 KB Output is correct
20 Correct 2 ms 16732 KB Output is correct
21 Correct 3 ms 16732 KB Output is correct
22 Correct 2 ms 16732 KB Output is correct
23 Correct 3 ms 16984 KB Output is correct
24 Correct 2 ms 12632 KB Output is correct
25 Correct 17 ms 19292 KB Output is correct
26 Correct 16 ms 19292 KB Output is correct
27 Correct 16 ms 19292 KB Output is correct
28 Correct 5 ms 19292 KB Output is correct
29 Correct 7 ms 19292 KB Output is correct
30 Correct 7 ms 19316 KB Output is correct
31 Correct 7 ms 19288 KB Output is correct
32 Correct 6 ms 19288 KB Output is correct
33 Correct 132 ms 51544 KB Output is correct
34 Correct 143 ms 51548 KB Output is correct
35 Correct 135 ms 51636 KB Output is correct
36 Correct 140 ms 51740 KB Output is correct
37 Correct 634 ms 51644 KB Output is correct
38 Correct 630 ms 51640 KB Output is correct
39 Correct 632 ms 51544 KB Output is correct
40 Correct 571 ms 51536 KB Output is correct
41 Correct 32 ms 51548 KB Output is correct
42 Correct 38 ms 51544 KB Output is correct
43 Correct 60 ms 51548 KB Output is correct
44 Correct 66 ms 51548 KB Output is correct
45 Correct 33 ms 31068 KB Output is correct
46 Correct 36 ms 49500 KB Output is correct
47 Correct 62 ms 51644 KB Output is correct
48 Correct 64 ms 51540 KB Output is correct
49 Correct 23 ms 122120 KB Output is correct
50 Correct 19 ms 113244 KB Output is correct
51 Correct 14 ms 121968 KB Output is correct
52 Correct 1 ms 8540 KB Output is correct
53 Correct 15 ms 121832 KB Output is correct
54 Correct 13 ms 121948 KB Output is correct
55 Correct 13 ms 121988 KB Output is correct
56 Correct 13 ms 121948 KB Output is correct
57 Correct 13 ms 121940 KB Output is correct
58 Correct 13 ms 121948 KB Output is correct
59 Correct 13 ms 121968 KB Output is correct
60 Correct 1 ms 8536 KB Output is correct
61 Correct 170 ms 144176 KB Output is correct
62 Correct 367 ms 171616 KB Output is correct
63 Correct 362 ms 171716 KB Output is correct
64 Correct 356 ms 171868 KB Output is correct
65 Correct 98 ms 146892 KB Output is correct
66 Correct 188 ms 167760 KB Output is correct
67 Correct 204 ms 171856 KB Output is correct
68 Correct 1 ms 8540 KB Output is correct
69 Correct 1 ms 8540 KB Output is correct
70 Correct 1 ms 10584 KB Output is correct
71 Correct 1 ms 8536 KB Output is correct
72 Correct 2 ms 8540 KB Output is correct
73 Execution timed out 5016 ms 171668 KB Time limit exceeded
74 Halted 0 ms 0 KB -