piyush_magic_park.cpp

#include <iostream>
using namespace std;
int magical_park(char park[][100],int m,int n,int k,int s)
{
    bool success=true;
    for(int i=0;i<m;i++)
    {
        for(int j=0;j<n;j++)
        {
            char ch=park[i][j];
            if(s<k)
            {
                success=false;
                break;
            }
            if(ch=='*')
            {
                s+=5;
            }
            else if(ch=='.')
            {
                s-=2;
            }
            else{
                break;
            }
            if(j!=n-1)
            {
                s--;
            }
        }
    }
    if(success)
    {
        cout<<"Yes"<<endl;
    }
      
    else{
          cout<<"No"<<endl;
      }
}
int main()
{
	int m,n,k,s;
    cin>>m>>n>>k>>s;
    char park[100][100];
    for(int i=0;i<m;i++)
    {
        for(int j=0;j<n;j++)
        {
            cin>>park[i][j];
        }
    }
    magical_park(park,m,n,k,s);
	return 0;
}