oj.uz

Submission #875863

# Submission time Handle Problem Language Result Execution time Memory
875863 2023-11-20T16:18:25 Z andrei_boaca Rectangles (IOI19_rect) C++17
59 / 100
 5000 ms 67700 KB 
#include "rect.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
typedef long long ll;
int v[2505][2505],n,m,up[2505][2505],down[2505][2505],rmq[15][2505],loga[2505],dlin[2505],ulin[2505],lins[2505],valmax[2505];
vector<int> who[2505];
int good[2505],last[2505];
int aib[2505];
int getmax(int l,int r)
{
    int lg=loga[r-l+1];
    return max(rmq[lg][l],rmq[lg][r-(1<<lg)+1]);
}
int lsb(int x)
{
    return x&(-x);
}
void update(int poz,int val)
{
    for(int i=poz;i<=n;i+=lsb(i))
        aib[i]+=val;
}
int suma(int poz)
{
    int rez=0;
    for(int i=poz;i>=1;i-=lsb(i))
        rez+=aib[i];
    return rez;
}
long long count_rectangles(vector<vector<int>> A)
{
    ll ans=0;
    n=A.size();
    m=A[0].size();
    for(int i=1;i<=2500;i++)
    {
        for(int bit=0;bit<=13;bit++)
            if((1<<bit)<=i)
                loga[i]=bit;
    }
    if(n<=2||m<=2)
        return 0;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            v[i][j]=A[i-1][j-1];
    for(int j=1;j<=m;j++)
    {
        for(int i=n;i>=1;i--)
        {
            rmq[0][i]=v[i][j];
            for(int k=1;k<=13;k++)
            {
                rmq[k][i]=rmq[k-1][i];
                int poz=i+(1<<(k-1));
                if(poz<=n)
                    rmq[k][i]=max(rmq[k][i],rmq[k-1][poz]);
            }
        }
        for(int i=2;i<n;i++)
        {
            up[i][j]=1e9;
            down[i][j]=0;
            int st=i;
            int dr=n-1;
            while(st<=dr)
            {
                int mij=(st+dr)/2;
                if(getmax(i,mij)<v[i-1][j])
                {
                    down[i][j]=mij;
                    st=mij+1;
                }
                else
                    dr=mij-1;
            }
            st=2;
            dr=i;
            while(st<=dr)
            {
                int mij=(st+dr)/2;
                if(getmax(mij,i)<v[i+1][j])
                {
                    up[i][j]=mij;
                    dr=mij-1;
                }
                else
                    st=mij+1;
            }
        }
    }
    for(int c1=2;c1<m;c1++)
    {
        for(int i=2;i<n;i++)
        {
            dlin[i]=1e9;
            ulin[i]=0;
            valmax[i]=-1;
        }
        for(int c2=c1;c2<m;c2++)
        {
            for(int i=2;i<n;i++)
                who[i].clear();
            for(int i=2;i<n;i++)
            {
                valmax[i]=max(valmax[i],v[i][c2]);
                dlin[i]=min(dlin[i],down[i][c2]);
                ulin[i]=max(ulin[i],up[i][c2]);
                if(valmax[i]<v[i][c1-1]&&valmax[i]<v[i][c2+1])
                    good[i]=1;
                else
                    good[i]=0;
                if(ulin[i]>=2&&ulin[i]<n&&good[i])
                    who[ulin[i]].push_back(i);
            }
            for(int i=n-1;i>=2;i--)
            {
                if(!good[i])
                {
                    last[i]=0;
                    continue;
                }
                if(good[i+1])
                    last[i]=last[i+1];
                else
                    last[i]=i;
            }
            for(int i=1;i<=n;i++)
                aib[i]=0;
            for(int i=2;i<n;i++)
            {
                for(int j:who[i])
                    update(j,1);
                if(good[i])
                {
                    int st=i;
                    int dr=min(dlin[i],last[i]);
                    if(st<=dr)
                    {
                        int val=suma(dr)-suma(st-1);
                        ans+=val;
                    }
                }
            }
        }
    }
    return ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8536 KB Output is correct
2 Correct 4 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 3 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 2548 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8692 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8536 KB Output is correct
2 Correct 4 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 3 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 2548 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8692 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 3 ms 8792 KB Output is correct
23 Correct 5 ms 8796 KB Output is correct
24 Correct 4 ms 8840 KB Output is correct
25 Correct 5 ms 8792 KB Output is correct
26 Correct 5 ms 8796 KB Output is correct
27 Correct 5 ms 8792 KB Output is correct
28 Correct 5 ms 8796 KB Output is correct
29 Correct 2 ms 8796 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8536 KB Output is correct
2 Correct 4 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 3 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 3 ms 8792 KB Output is correct
18 Correct 5 ms 8796 KB Output is correct
19 Correct 4 ms 8840 KB Output is correct
20 Correct 5 ms 8792 KB Output is correct
21 Correct 5 ms 8796 KB Output is correct
22 Correct 5 ms 8792 KB Output is correct
23 Correct 5 ms 8796 KB Output is correct
24 Correct 2 ms 8796 KB Output is correct
25 Correct 1 ms 2548 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 1 ms 8692 KB Output is correct
29 Correct 0 ms 2396 KB Output is correct
30 Correct 36 ms 11332 KB Output is correct
31 Correct 38 ms 11336 KB Output is correct
32 Correct 32 ms 11396 KB Output is correct
33 Correct 32 ms 11100 KB Output is correct
34 Correct 34 ms 11096 KB Output is correct
35 Correct 33 ms 11352 KB Output is correct
36 Correct 35 ms 11384 KB Output is correct
37 Correct 48 ms 9380 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8536 KB Output is correct
2 Correct 4 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 3 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 3 ms 8792 KB Output is correct
18 Correct 5 ms 8796 KB Output is correct
19 Correct 4 ms 8840 KB Output is correct
20 Correct 5 ms 8792 KB Output is correct
21 Correct 5 ms 8796 KB Output is correct
22 Correct 5 ms 8792 KB Output is correct
23 Correct 5 ms 8796 KB Output is correct
24 Correct 2 ms 8796 KB Output is correct
25 Correct 36 ms 11332 KB Output is correct
26 Correct 38 ms 11336 KB Output is correct
27 Correct 32 ms 11396 KB Output is correct
28 Correct 32 ms 11100 KB Output is correct
29 Correct 34 ms 11096 KB Output is correct
30 Correct 33 ms 11352 KB Output is correct
31 Correct 35 ms 11384 KB Output is correct
32 Correct 48 ms 9380 KB Output is correct
33 Correct 1 ms 2548 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 1 ms 8540 KB Output is correct
36 Correct 1 ms 8692 KB Output is correct
37 Correct 0 ms 2396 KB Output is correct
38 Correct 1274 ms 34252 KB Output is correct
39 Correct 1189 ms 34248 KB Output is correct
40 Correct 1256 ms 34268 KB Output is correct
41 Correct 1441 ms 34256 KB Output is correct
42 Correct 1390 ms 34352 KB Output is correct
43 Correct 1320 ms 34404 KB Output is correct
44 Correct 1312 ms 34668 KB Output is correct
45 Correct 1192 ms 34352 KB Output is correct
46 Correct 1263 ms 32088 KB Output is correct
47 Correct 1294 ms 32092 KB Output is correct
48 Correct 1470 ms 33180 KB Output is correct
49 Correct 1255 ms 35084 KB Output is correct
50 Correct 345 ms 31056 KB Output is correct
51 Correct 646 ms 18520 KB Output is correct
52 Correct 1217 ms 33900 KB Output is correct
53 Correct 1195 ms 34640 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 8796 KB Output is correct
2 Correct 22 ms 8796 KB Output is correct
3 Correct 29 ms 8792 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 29 ms 8796 KB Output is correct
6 Correct 37 ms 8796 KB Output is correct
7 Correct 29 ms 8796 KB Output is correct
8 Correct 29 ms 8796 KB Output is correct
9 Correct 29 ms 8876 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2548 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8692 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Execution timed out 5054 ms 67700 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8536 KB Output is correct
2 Correct 4 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 1 ms 8536 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 3 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 3 ms 8792 KB Output is correct
18 Correct 5 ms 8796 KB Output is correct
19 Correct 4 ms 8840 KB Output is correct
20 Correct 5 ms 8792 KB Output is correct
21 Correct 5 ms 8796 KB Output is correct
22 Correct 5 ms 8792 KB Output is correct
23 Correct 5 ms 8796 KB Output is correct
24 Correct 2 ms 8796 KB Output is correct
25 Correct 36 ms 11332 KB Output is correct
26 Correct 38 ms 11336 KB Output is correct
27 Correct 32 ms 11396 KB Output is correct
28 Correct 32 ms 11100 KB Output is correct
29 Correct 34 ms 11096 KB Output is correct
30 Correct 33 ms 11352 KB Output is correct
31 Correct 35 ms 11384 KB Output is correct
32 Correct 48 ms 9380 KB Output is correct
33 Correct 1274 ms 34252 KB Output is correct
34 Correct 1189 ms 34248 KB Output is correct
35 Correct 1256 ms 34268 KB Output is correct
36 Correct 1441 ms 34256 KB Output is correct
37 Correct 1390 ms 34352 KB Output is correct
38 Correct 1320 ms 34404 KB Output is correct
39 Correct 1312 ms 34668 KB Output is correct
40 Correct 1192 ms 34352 KB Output is correct
41 Correct 1263 ms 32088 KB Output is correct
42 Correct 1294 ms 32092 KB Output is correct
43 Correct 1470 ms 33180 KB Output is correct
44 Correct 1255 ms 35084 KB Output is correct
45 Correct 345 ms 31056 KB Output is correct
46 Correct 646 ms 18520 KB Output is correct
47 Correct 1217 ms 33900 KB Output is correct
48 Correct 1195 ms 34640 KB Output is correct
49 Correct 30 ms 8796 KB Output is correct
50 Correct 22 ms 8796 KB Output is correct
51 Correct 29 ms 8792 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 29 ms 8796 KB Output is correct
54 Correct 37 ms 8796 KB Output is correct
55 Correct 29 ms 8796 KB Output is correct
56 Correct 29 ms 8796 KB Output is correct
57 Correct 29 ms 8876 KB Output is correct
58 Correct 1 ms 2392 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 8536 KB Output is correct
61 Execution timed out 5054 ms 67700 KB Time limit exceeded
62 Halted 0 ms 0 KB -