Submission #560297

#	Time	Username	Problem	Language	Result	Execution time	Memory
560297		AGE	Strah (COCI18_strah)	C++14	44 / 110	241 ms	217796 KiB

strah

#include<bits/stdc++.h>
#define F first
#define S second
#define pb push_back
using namespace std;
const int N=1e5,M=305,mod=1e9+7;
int ok[M][M][M],prefix[M][M][M];
string s[M];
main()
{
    int n,m;
    cin>>n>>m;

    for(int i=0;i<n;i++)
        cin>>s[i];

    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){

            int okk=0;
            for(int k=j;k<m;k++){

                if(s[i][k]=='#')
                    okk=1;

                ok[i][j][k]=okk;

            }

        }
    }

    for(int i=0;i<m;i++){
        for(int j=i;j<m;j++){

            int last=-1;
            for(int k=0;k<n;k++){

                if(ok[k][i][j]==1)
                    last=k;

                prefix[k][i][j]=last;

            }

        }
    }


    for(int i=0;i<m;i++){
        for(int j=i;j<m;j++){

            int last=n;
            for(int k=n-1;k>=0;k--){

                if(ok[k][i][j]==1)
                    last=k;

                ok[k][i][j]=last;

            }

        }
    }

    int ans=0;
    for(int i=0;i<m;i++)
        for(int j=i;j<m;j++)
            for(int k=0;k<n;k++)
                ans+=((k-prefix[k][i][j])*(ok[k][i][j]-k))*(j-i+1);

    cout<<ans<<endl;

    return 0;
}

Compilation message (stderr)

strah.cpp:9:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    9 | main()
      | ^~~~

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 0 / 11
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 11
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11