oj.uz

Submission #867610

# Submission time Handle Problem Language Result Execution time Memory
867610 2023-10-28T22:36:20 Z JakobZorz Rectangles (IOI19_rect) C++17
72 / 100
 5000 ms 171944 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;
    
    if(get_max_up(y2,x1+1,x2)>y1)
        return 0;
    
    if(get_min_right(x1,y1+1,y2)<x2)
        return 0;
    
    if(get_max_left(x2,y1+1,y2)>x1)
        return 0;
    
    for(int x=x1+1;x<x2;x++)
        if(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)
            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;
    
    if(get_min_down(y1,x1+1,x2)<y2)
        return 0;
    
    if(get_min_right(x1,y1+1,y2)<x2)
        return 0;
    
    if(get_max_left(x2,y1+1,y2)>x1)
        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)
            return 0;
    
    for(int y=y1+1;y<y2;y++)
        if(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 8540 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10760 KB Output is correct
4 Correct 1 ms 10584 KB Output is correct
5 Correct 1 ms 10588 KB Output is correct
6 Correct 2 ms 10584 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10588 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 10584 KB Output is correct
12 Correct 1 ms 10584 KB Output is correct
13 Correct 1 ms 8792 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 8536 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 2 ms 10584 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10760 KB Output is correct
4 Correct 1 ms 10584 KB Output is correct
5 Correct 1 ms 10588 KB Output is correct
6 Correct 2 ms 10584 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10588 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 10584 KB Output is correct
12 Correct 1 ms 10584 KB Output is correct
13 Correct 1 ms 8792 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 8536 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 2 ms 10584 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 4 ms 16728 KB Output is correct
23 Correct 4 ms 16988 KB Output is correct
24 Correct 4 ms 16732 KB Output is correct
25 Correct 2 ms 16988 KB Output is correct
26 Correct 3 ms 16988 KB Output is correct
27 Correct 3 ms 16732 KB Output is correct
28 Correct 3 ms 17240 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10760 KB Output is correct
4 Correct 1 ms 10584 KB Output is correct
5 Correct 1 ms 10588 KB Output is correct
6 Correct 2 ms 10584 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10588 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 10584 KB Output is correct
12 Correct 1 ms 10584 KB Output is correct
13 Correct 1 ms 8792 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 4 ms 16728 KB Output is correct
18 Correct 4 ms 16988 KB Output is correct
19 Correct 4 ms 16732 KB Output is correct
20 Correct 2 ms 16988 KB Output is correct
21 Correct 3 ms 16988 KB Output is correct
22 Correct 3 ms 16732 KB Output is correct
23 Correct 3 ms 17240 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 1 ms 8536 KB Output is correct
26 Correct 1 ms 8540 KB Output is correct
27 Correct 2 ms 10584 KB Output is correct
28 Correct 1 ms 8540 KB Output is correct
29 Correct 1 ms 8540 KB Output is correct
30 Correct 29 ms 19288 KB Output is correct
31 Correct 27 ms 19292 KB Output is correct
32 Correct 28 ms 19292 KB Output is correct
33 Correct 5 ms 19292 KB Output is correct
34 Correct 7 ms 19288 KB Output is correct
35 Correct 7 ms 19292 KB Output is correct
36 Correct 7 ms 19292 KB Output is correct
37 Correct 7 ms 19292 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10760 KB Output is correct
4 Correct 1 ms 10584 KB Output is correct
5 Correct 1 ms 10588 KB Output is correct
6 Correct 2 ms 10584 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10588 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 10584 KB Output is correct
12 Correct 1 ms 10584 KB Output is correct
13 Correct 1 ms 8792 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 4 ms 16728 KB Output is correct
18 Correct 4 ms 16988 KB Output is correct
19 Correct 4 ms 16732 KB Output is correct
20 Correct 2 ms 16988 KB Output is correct
21 Correct 3 ms 16988 KB Output is correct
22 Correct 3 ms 16732 KB Output is correct
23 Correct 3 ms 17240 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 29 ms 19288 KB Output is correct
26 Correct 27 ms 19292 KB Output is correct
27 Correct 28 ms 19292 KB Output is correct
28 Correct 5 ms 19292 KB Output is correct
29 Correct 7 ms 19288 KB Output is correct
30 Correct 7 ms 19292 KB Output is correct
31 Correct 7 ms 19292 KB Output is correct
32 Correct 7 ms 19292 KB Output is correct
33 Correct 1 ms 8536 KB Output is correct
34 Correct 1 ms 8540 KB Output is correct
35 Correct 2 ms 10584 KB Output is correct
36 Correct 1 ms 8540 KB Output is correct
37 Correct 1 ms 8540 KB Output is correct
38 Correct 137 ms 51800 KB Output is correct
39 Correct 135 ms 51644 KB Output is correct
40 Correct 132 ms 51652 KB Output is correct
41 Correct 132 ms 51640 KB Output is correct
42 Correct 1033 ms 51640 KB Output is correct
43 Correct 1112 ms 51796 KB Output is correct
44 Correct 1082 ms 51784 KB Output is correct
45 Correct 957 ms 51380 KB Output is correct
46 Correct 33 ms 51592 KB Output is correct
47 Correct 41 ms 51700 KB Output is correct
48 Correct 63 ms 51620 KB Output is correct
49 Correct 74 ms 51572 KB Output is correct
50 Correct 35 ms 31068 KB Output is correct
51 Correct 37 ms 49500 KB Output is correct
52 Correct 68 ms 51544 KB Output is correct
53 Correct 70 ms 51536 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 121944 KB Output is correct
2 Correct 21 ms 113240 KB Output is correct
3 Correct 13 ms 121948 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 13 ms 121948 KB Output is correct
6 Correct 14 ms 121944 KB Output is correct
7 Correct 13 ms 121948 KB Output is correct
8 Correct 13 ms 121992 KB Output is correct
9 Correct 13 ms 121948 KB Output is correct
10 Correct 12 ms 122200 KB Output is correct
11 Correct 13 ms 121944 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 10584 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 179 ms 144060 KB Output is correct
8 Correct 369 ms 171612 KB Output is correct
9 Correct 370 ms 171868 KB Output is correct
10 Correct 382 ms 171864 KB Output is correct
11 Correct 107 ms 146784 KB Output is correct
12 Correct 191 ms 167764 KB Output is correct
13 Correct 213 ms 171944 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 10588 KB Output is correct
3 Correct 1 ms 10760 KB Output is correct
4 Correct 1 ms 10584 KB Output is correct
5 Correct 1 ms 10588 KB Output is correct
6 Correct 2 ms 10584 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 10588 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 10584 KB Output is correct
12 Correct 1 ms 10584 KB Output is correct
13 Correct 1 ms 8792 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 4 ms 16728 KB Output is correct
18 Correct 4 ms 16988 KB Output is correct
19 Correct 4 ms 16732 KB Output is correct
20 Correct 2 ms 16988 KB Output is correct
21 Correct 3 ms 16988 KB Output is correct
22 Correct 3 ms 16732 KB Output is correct
23 Correct 3 ms 17240 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 29 ms 19288 KB Output is correct
26 Correct 27 ms 19292 KB Output is correct
27 Correct 28 ms 19292 KB Output is correct
28 Correct 5 ms 19292 KB Output is correct
29 Correct 7 ms 19288 KB Output is correct
30 Correct 7 ms 19292 KB Output is correct
31 Correct 7 ms 19292 KB Output is correct
32 Correct 7 ms 19292 KB Output is correct
33 Correct 137 ms 51800 KB Output is correct
34 Correct 135 ms 51644 KB Output is correct
35 Correct 132 ms 51652 KB Output is correct
36 Correct 132 ms 51640 KB Output is correct
37 Correct 1033 ms 51640 KB Output is correct
38 Correct 1112 ms 51796 KB Output is correct
39 Correct 1082 ms 51784 KB Output is correct
40 Correct 957 ms 51380 KB Output is correct
41 Correct 33 ms 51592 KB Output is correct
42 Correct 41 ms 51700 KB Output is correct
43 Correct 63 ms 51620 KB Output is correct
44 Correct 74 ms 51572 KB Output is correct
45 Correct 35 ms 31068 KB Output is correct
46 Correct 37 ms 49500 KB Output is correct
47 Correct 68 ms 51544 KB Output is correct
48 Correct 70 ms 51536 KB Output is correct
49 Correct 27 ms 121944 KB Output is correct
50 Correct 21 ms 113240 KB Output is correct
51 Correct 13 ms 121948 KB Output is correct
52 Correct 1 ms 8540 KB Output is correct
53 Correct 13 ms 121948 KB Output is correct
54 Correct 14 ms 121944 KB Output is correct
55 Correct 13 ms 121948 KB Output is correct
56 Correct 13 ms 121992 KB Output is correct
57 Correct 13 ms 121948 KB Output is correct
58 Correct 12 ms 122200 KB Output is correct
59 Correct 13 ms 121944 KB Output is correct
60 Correct 1 ms 8536 KB Output is correct
61 Correct 179 ms 144060 KB Output is correct
62 Correct 369 ms 171612 KB Output is correct
63 Correct 370 ms 171868 KB Output is correct
64 Correct 382 ms 171864 KB Output is correct
65 Correct 107 ms 146784 KB Output is correct
66 Correct 191 ms 167764 KB Output is correct
67 Correct 213 ms 171944 KB Output is correct
68 Correct 1 ms 8536 KB Output is correct
69 Correct 1 ms 8540 KB Output is correct
70 Correct 2 ms 10584 KB Output is correct
71 Correct 1 ms 8540 KB Output is correct
72 Correct 1 ms 8540 KB Output is correct
73 Execution timed out 5026 ms 171748 KB Time limit exceeded
74 Halted 0 ms 0 KB -