Submission

Score: 20

User: DryNotechan

Problemset: บริษัททำความสะอาด

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-03 15:52:01

/*
TASK: cleaning
LANG: C++
AUTHOR: Chatchawat Phuangpornsri
CENTER: SUT
*/
#include<iostream>
using namespace std;

int main(){
    int n;
    cin >> n;
    int arr[n*n] = {0};
    string str;
    cin >> str;
    int c=0;
    for(int i=0; i<str.size(); i++){
        if(str[i]!='[' && str[i]!=']' && str[i]!=',' ){
            arr[c]=str[i];
            c++;
        }
    }
    int home[n+2][n+2], p=0;
    for(int i=0; i<=n+1; i++){
        for(int j=0; j<=n+1; j++){
            if(i==0  || i==n+1 || j==0 || j==n+1){
                home[i][j]=0;
            }else{ 
                home[i][j]=arr[p]-48; 
                p++;
            }
        }
    }

    /*for(int i=0; i<=n+1; i++){
        for(int j=0; j<=n+1; j++){
            cout << home[i][j] << " ";
        }
        cout << "\n";
    }*/

    //
    int area[n+1][n+1];
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            if(home[i+1][j+1]==0){
                area[i][j]=0;
            }else area[i][j]= 2 + max(0, home[i+1][j+1]-home[i+1][j+2])
                + max(0, home[i+1][j+1]-home[i+1][j])
                + max(0, home[i+1][j+1]-home[i][j+1])
                + max(0, home[i+1][j+1]-home[i+2][j+1]);

        }
    }
    int sum=0;
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            sum+=area[i][j];
        }
    }
    cout << sum;
}