11494 - Queen/11494.cpp

   1 /*
   2   Problem: 11494 - Queen
   3   Author: Andrés Mejía-Posada
   4   (http://blogaritmo.factorcomun.org)
   5
   6  */
   7
   8 using namespace std;
   9 #include <algorithm>
  10 #include <iostream>
  11 #include <iterator>
  12 #include <sstream>
  13 #include <fstream>
  14 #include <cassert>
  15 #include <climits>
  16 #include <cstdlib>
  17 #include <cstring>
  18 #include <string>
  19 #include <cstdio>
  20 #include <vector>
  21 #include <cmath>
  22 #include <queue>
  23 #include <deque>
  24 #include <stack>
  25 #include <map>
  26 #include <set>
  27
  28 #define D(x) cout << #x " is " << x << endl
  29
  30 int main(){
  31   int a, b, c, d;
  32   while (cin >> a >> b >> c >> d && (a+b+c+d)){
  33     if (a == c && b == d) cout << "0\n";
  34     else if (a == c || b == d || ((a-c==b-d) || (a-c==d-b))) cout << "1\n"; //Same row, column or diagonal
  35     else cout << "2\n";
  36   }
  37   return 0;
  38 }