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  1. #include <iostream>
  2. #include <cstdio>
  3.  
  4. using namespace std;
  5. const int NMAX = 2014;
  6. long long d1[2*NMAX], d2[2*NMAX], sol[2];
  7. pair < int , int > v[2];
  8. int a[NMAX][NMAX];
  9. inline void Update(const int c,const int i,const int j,const long long val){
  10.     if(val > sol[c]){
  11.         sol[c] = val;
  12.         v[c].first = i;
  13.         v[c].second = j;
  14.     }
  15. }
  16. int main(){
  17.     #ifndef ONLINE_JUDGE
  18.         freopen("date.in","r",stdin);
  19.         freopen("date.out","w",stdout);
  20.     #endif
  21.     cin.sync_with_stdio(false);
  22.     int n;
  23.     cin >> n;
  24.     sol[0] = sol[1] = -1; 
  25.     for(int i = 1;i <= n; ++i)
  26.         for(int j = 1;j <= n; ++j){
  27.             int x;
  28.             cin >> a[i][j];
  29.             d1[i+j] += a[i][j];
  30.             d2[i-j+n] += a[i][j];
  31.         }
  32.     for(int i=1;i<=n;++i)
  33.         for(int j=1;j<=n;++j)
  34.             Update((i+j)&1,i,j,d1[i+j]+d2[i-j+n]-a[i][j]);
  35.     cout<<sol[0]+sol[1]<<"\n";
  36.     if(v[0] > v[1])
  37.         swap(v[0],v[1]);
  38.     cout<<v[0].first<<" "<<v[0].second<<" ";
  39.     cout<<v[1].first<<" "<<v[1].second<<"\n";
  40.     return 0;
  41. }
Success #stdin #stdout 0s 19344KB
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stdin
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Standard input is empty
stdout
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-2
0 0 0 0
https://ideone.com/yBx3so
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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