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Submission #464697

# Submission time Handle Problem Language Result Execution time Memory
464697 2021-08-13T17:22:26 Z ahmedfouadnew Strah (COCI18_strah) C++17
55 / 110
 336 ms 2008 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
const int mod=1e9+7;
int n,m;
char c[303][303];
int sum[303][303];
int calc(int x,int y,int x2,int y2)
{
    return sum[x2][y2]-sum[x-1][y2]-sum[x2][y-1]+sum[x-1][y-1];
}
signed main()
{
    cin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            cin>>c[i][j];
            sum[i][j]=(c[i][j]=='.');
            sum[i][j]+=sum[i-1][j]+sum[i][j-1]-sum[i-1][j-1];
        }
    }
    int ans=0;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            if(c[i][j]=='#') continue;
           for(int l=1;l<=n;l++)
           {
               if(i+l-1>n) break;
               if(calc(i,j,i+l-1,j)!=l) break;
               int s=j,e=m;
               while(s<e)
               {
                 int mid=s+(e-s+1)/2;
                 if(calc(i,j,i+l-1,mid)==l*(mid-j+1))
                 {
                     s=mid;
                 }
                 else
                 {
                     e=mid-1;
                 }
               }
               int sz=(s-j+1);
               ans+=l*(sz*(sz+1)/2);
           }
        }
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 1064 KB Output is correct
2 Correct 48 ms 1100 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 1104 KB Output is correct
2 Correct 46 ms 1040 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 336 ms 1076 KB Output is correct
2 Correct 55 ms 1076 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 24 ms 1948 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #7
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 35 ms 2008 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 34 ms 1984 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 1996 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #10
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 46 ms 1944 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -