oj.uz

Submission #144084

# Submission time Handle Problem Language Result Execution time Memory
144084 2019-08-16T01:54:11 Z Lyestria Rectangles (IOI19_rect) C++14
72 / 100
 5000 ms 432684 KB 
#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int mn=2510;
struct seg{
    int seg[mn*2];
    inline void up(int a,int b){
        seg[a+=mn]=b;
        for(a>>=1;a;a>>=1)seg[a]=min(seg[a<<1],seg[(a<<1)^1]);
    }
    inline int qu(int a,int b){
        int ans=0x3f3f3f3f;
        for(a+=mn,b+=mn;a<=b;a>>=1,b>>=1){
            if(a&1)ans=min(ans,seg[a++]);
            if(!(b&1))ans=min(ans,seg[b--]);
        }
        return ans;
    }
};
seg lef[mn],rig[mn],up[mn],dow[mn];
int elef[mn][mn],erig[mn][mn],eup[mn][mn],edow[mn][mn];
set<ll>ss;
long long hsh(ll a,ll b,ll c,ll d){
    return (a<<48)|(b<<32)|(c<<16)|d;
}
long long count_rectangles(std::vector<std::vector<int> > a) {
	int n=a.size(),m=a[0].size();
	int i,j;
	for(i=0;i<n;i++){
        stack<int>s;
        for(j=0;j<m;j++){
            while(s.size()&&a[i][s.top()]<=a[i][j])rig[s.top()].up(i,j),s.pop();
            s.push(j);
        }
        while(s.size())rig[s.top()].up(i,j),s.pop();
        for(j=m-1;j>=0;j--){
            while(s.size()&&a[i][s.top()]<=a[i][j])lef[s.top()].up(i,-j),s.pop();
            s.push(j);
        }
        while(s.size())lef[s.top()].up(i,-j),s.pop();
        for(j=0;j<m;j++){
            while(s.size()&&a[i][s.top()]<a[i][j])erig[i][s.top()]=j,s.pop();
            s.push(j);
        }
        while(s.size())erig[i][s.top()]=j,s.pop();
        for(j=m-1;j>=0;j--){
            while(s.size()&&a[i][s.top()]<a[i][j])elef[i][s.top()]=j,s.pop();
            s.push(j);
        }
        while(s.size())elef[i][s.top()]=j,s.pop();
	}
	for(i=0;i<m;i++){
        stack<int>s;
        for(j=0;j<n;j++){
            while(s.size()&&a[s.top()][i]<=a[j][i])dow[s.top()].up(i,j),s.pop();
            s.push(j);
        }
        while(s.size())dow[s.top()].up(i,j),s.pop();
        for(j=n-1;j>=0;j--){
            while(s.size()&&a[s.top()][i]<=a[j][i])up[s.top()].up(i,-j),s.pop();
            s.push(j);
        }
        while(s.size())up[s.top()].up(i,-j),s.pop();
        for(j=0;j<n;j++){
            while(s.size()&&a[s.top()][i]<a[j][i])edow[s.top()][i]=j,s.pop();
            s.push(j);
        }
        while(s.size())edow[s.top()][i]=j,s.pop();
        for(j=n-1;j>=0;j--){
            while(s.size()&&a[s.top()][i]<a[j][i])eup[s.top()][i]=j,s.pop();
            s.push(j);
        }
        while(s.size())eup[s.top()][i]=j,s.pop();
	}
	int ans=0;
	for(i=1;i<n-1;i++){
        for(j=1;j<m-1;j++){
            int d,u,l,r;
            d=edow[i][j];
            u=eup[i][j];
            l=elef[i][j];
            r=erig[i][j];
            if(l==-1||u==-1||r==m||d==n)continue;
            if(rig[l].qu(u+1,d-1)<r)continue;
            if(-lef[r].qu(u+1,d-1)>l)continue;
            if(dow[u].qu(l+1,r-1)<d)continue;
            if(-up[d].qu(l+1,r-1)>u)continue;
            ss.insert(hsh(d,u,l,r));
        }
	}
	return ss.size();
}

Compilation message

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:76:6: warning: unused variable 'ans' [-Wunused-variable]
  int ans=0;
      ^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2552 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 3 ms 2040 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2424 KB Output is correct
12 Correct 4 ms 2424 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 380 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 4 ms 2424 KB Output is correct
20 Correct 3 ms 2040 KB Output is correct
21 Correct 2 ms 760 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2552 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 3 ms 2040 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2424 KB Output is correct
12 Correct 4 ms 2424 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 11 ms 6300 KB Output is correct
18 Correct 9 ms 6392 KB Output is correct
19 Correct 12 ms 6520 KB Output is correct
20 Correct 9 ms 6136 KB Output is correct
21 Correct 9 ms 6136 KB Output is correct
22 Correct 9 ms 6136 KB Output is correct
23 Correct 9 ms 6136 KB Output is correct
24 Correct 7 ms 4984 KB Output is correct
25 Correct 2 ms 380 KB Output is correct
26 Correct 2 ms 504 KB Output is correct
27 Correct 4 ms 2424 KB Output is correct
28 Correct 3 ms 2040 KB Output is correct
29 Correct 2 ms 760 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2552 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 3 ms 2040 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2424 KB Output is correct
12 Correct 4 ms 2424 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 11 ms 6300 KB Output is correct
18 Correct 9 ms 6392 KB Output is correct
19 Correct 12 ms 6520 KB Output is correct
20 Correct 9 ms 6136 KB Output is correct
21 Correct 9 ms 6136 KB Output is correct
22 Correct 9 ms 6136 KB Output is correct
23 Correct 9 ms 6136 KB Output is correct
24 Correct 7 ms 4984 KB Output is correct
25 Correct 46 ms 17544 KB Output is correct
26 Correct 46 ms 17656 KB Output is correct
27 Correct 46 ms 17528 KB Output is correct
28 Correct 34 ms 15956 KB Output is correct
29 Correct 39 ms 16504 KB Output is correct
30 Correct 39 ms 16376 KB Output is correct
31 Correct 40 ms 16376 KB Output is correct
32 Correct 39 ms 16248 KB Output is correct
33 Correct 2 ms 380 KB Output is correct
34 Correct 2 ms 504 KB Output is correct
35 Correct 4 ms 2424 KB Output is correct
36 Correct 3 ms 2040 KB Output is correct
37 Correct 2 ms 760 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2552 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 3 ms 2040 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2424 KB Output is correct
12 Correct 4 ms 2424 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 11 ms 6300 KB Output is correct
18 Correct 9 ms 6392 KB Output is correct
19 Correct 12 ms 6520 KB Output is correct
20 Correct 9 ms 6136 KB Output is correct
21 Correct 9 ms 6136 KB Output is correct
22 Correct 9 ms 6136 KB Output is correct
23 Correct 9 ms 6136 KB Output is correct
24 Correct 7 ms 4984 KB Output is correct
25 Correct 46 ms 17544 KB Output is correct
26 Correct 46 ms 17656 KB Output is correct
27 Correct 46 ms 17528 KB Output is correct
28 Correct 34 ms 15956 KB Output is correct
29 Correct 39 ms 16504 KB Output is correct
30 Correct 39 ms 16376 KB Output is correct
31 Correct 40 ms 16376 KB Output is correct
32 Correct 39 ms 16248 KB Output is correct
33 Correct 318 ms 69636 KB Output is correct
34 Correct 324 ms 69564 KB Output is correct
35 Correct 313 ms 69540 KB Output is correct
36 Correct 317 ms 69624 KB Output is correct
37 Correct 605 ms 92536 KB Output is correct
38 Correct 596 ms 92368 KB Output is correct
39 Correct 597 ms 92472 KB Output is correct
40 Correct 560 ms 87640 KB Output is correct
41 Correct 342 ms 70460 KB Output is correct
42 Correct 358 ms 71800 KB Output is correct
43 Correct 406 ms 77276 KB Output is correct
44 Correct 414 ms 77432 KB Output is correct
45 Correct 216 ms 53900 KB Output is correct
46 Correct 211 ms 48176 KB Output is correct
47 Correct 434 ms 77284 KB Output is correct
48 Correct 449 ms 77420 KB Output is correct
49 Correct 2 ms 380 KB Output is correct
50 Correct 2 ms 504 KB Output is correct
51 Correct 4 ms 2424 KB Output is correct
52 Correct 3 ms 2040 KB Output is correct
53 Correct 2 ms 760 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 65612 KB Output is correct
2 Correct 46 ms 55752 KB Output is correct
3 Correct 53 ms 65444 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 55 ms 65528 KB Output is correct
6 Correct 54 ms 65528 KB Output is correct
7 Correct 54 ms 65528 KB Output is correct
8 Correct 58 ms 65464 KB Output is correct
9 Correct 55 ms 65528 KB Output is correct
10 Correct 51 ms 65144 KB Output is correct
11 Correct 53 ms 65260 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1016 KB Output is correct
2 Correct 1944 ms 212016 KB Output is correct
3 Correct 4313 ms 354908 KB Output is correct
4 Correct 4350 ms 356100 KB Output is correct
5 Correct 4343 ms 356124 KB Output is correct
6 Correct 1881 ms 215000 KB Output is correct
7 Correct 3556 ms 335380 KB Output is correct
8 Correct 3813 ms 344348 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 4 ms 2424 KB Output is correct
12 Correct 3 ms 2040 KB Output is correct
13 Correct 2 ms 760 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 4 ms 2424 KB Output is correct
3 Correct 4 ms 2424 KB Output is correct
4 Correct 4 ms 2552 KB Output is correct
5 Correct 4 ms 2424 KB Output is correct
6 Correct 4 ms 2424 KB Output is correct
7 Correct 3 ms 2040 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 4 ms 2424 KB Output is correct
10 Correct 4 ms 2424 KB Output is correct
11 Correct 4 ms 2424 KB Output is correct
12 Correct 4 ms 2424 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 760 KB Output is correct
15 Correct 3 ms 1016 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 11 ms 6300 KB Output is correct
18 Correct 9 ms 6392 KB Output is correct
19 Correct 12 ms 6520 KB Output is correct
20 Correct 9 ms 6136 KB Output is correct
21 Correct 9 ms 6136 KB Output is correct
22 Correct 9 ms 6136 KB Output is correct
23 Correct 9 ms 6136 KB Output is correct
24 Correct 7 ms 4984 KB Output is correct
25 Correct 46 ms 17544 KB Output is correct
26 Correct 46 ms 17656 KB Output is correct
27 Correct 46 ms 17528 KB Output is correct
28 Correct 34 ms 15956 KB Output is correct
29 Correct 39 ms 16504 KB Output is correct
30 Correct 39 ms 16376 KB Output is correct
31 Correct 40 ms 16376 KB Output is correct
32 Correct 39 ms 16248 KB Output is correct
33 Correct 318 ms 69636 KB Output is correct
34 Correct 324 ms 69564 KB Output is correct
35 Correct 313 ms 69540 KB Output is correct
36 Correct 317 ms 69624 KB Output is correct
37 Correct 605 ms 92536 KB Output is correct
38 Correct 596 ms 92368 KB Output is correct
39 Correct 597 ms 92472 KB Output is correct
40 Correct 560 ms 87640 KB Output is correct
41 Correct 342 ms 70460 KB Output is correct
42 Correct 358 ms 71800 KB Output is correct
43 Correct 406 ms 77276 KB Output is correct
44 Correct 414 ms 77432 KB Output is correct
45 Correct 216 ms 53900 KB Output is correct
46 Correct 211 ms 48176 KB Output is correct
47 Correct 434 ms 77284 KB Output is correct
48 Correct 449 ms 77420 KB Output is correct
49 Correct 61 ms 65612 KB Output is correct
50 Correct 46 ms 55752 KB Output is correct
51 Correct 53 ms 65444 KB Output is correct
52 Correct 2 ms 504 KB Output is correct
53 Correct 55 ms 65528 KB Output is correct
54 Correct 54 ms 65528 KB Output is correct
55 Correct 54 ms 65528 KB Output is correct
56 Correct 58 ms 65464 KB Output is correct
57 Correct 55 ms 65528 KB Output is correct
58 Correct 51 ms 65144 KB Output is correct
59 Correct 53 ms 65260 KB Output is correct
60 Correct 2 ms 1016 KB Output is correct
61 Correct 1944 ms 212016 KB Output is correct
62 Correct 4313 ms 354908 KB Output is correct
63 Correct 4350 ms 356100 KB Output is correct
64 Correct 4343 ms 356124 KB Output is correct
65 Correct 1881 ms 215000 KB Output is correct
66 Correct 3556 ms 335380 KB Output is correct
67 Correct 3813 ms 344348 KB Output is correct
68 Correct 3833 ms 344372 KB Output is correct
69 Correct 3847 ms 344344 KB Output is correct
70 Correct 3826 ms 344368 KB Output is correct
71 Correct 3792 ms 344524 KB Output is correct
72 Execution timed out 5050 ms 432684 KB Time limit exceeded
73 Halted 0 ms 0 KB -