Submission #2629311

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
using Int = long long;

template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int h,w;
  cin>>h>>w;
  vector<string> s(h);
  for(Int i=0;i<h;i++) cin>>s[i];
  Int ans=0;
  for(Int t=0;t<4;t++){
    for(Int i=0;i<h;i++){
      for(Int j=0;j<w;j++){
	if(s[i][j]=='X') continue;
	for(Int k=0;i+k<h&&j+k<w;k++){
	  Int res=0,flg=1;
	  for(Int a=0;a<=k;a++){
	    for(Int b=0;b<=k;b++){
	      if(a+b>k) continue;
	      if(s[i+a][j+b]=='X') flg=0;
	      res+=s[i+a][j+b]-'0';
	    }
	  }
	  if(flg) chmax(ans,res);
	}
      }
    }
    
    if(t&1)
      for(Int i=0;i<h;i++) 
	reverse(s[i].begin(),s[i].end());
    else reverse(s.begin(),s.end());
  }
  cout<<ans<<endl;
  return 0;
}

Submission Info

Judge Result