View Compilation Error

0_0_35802068_26712.cpp: In function 'int main()':
0_0_35802068_26712.cpp:5:2: error: 'cin' was not declared in this scope
  cin>>T;
  ^
0_0_35802068_26712.cpp:18:22: error: 'abs' was not declared in this scope
    juli=abs(x[i]-x[j])+abs(y[i]-y[j]);
                      ^
0_0_35802068_26712.cpp:44:3: error: 'cout' was not declared in this scope
   cout<<"YES"<<endl;
   ^
0_0_35802068_26712.cpp:44:16: error: 'endl' was not declared in this scope
   cout<<"YES"<<endl;
                ^
0_0_35802068_26712.cpp:46:3: error: 'cout' was not declared in this scope
   cout<<"NO"<<endl;
   ^
0_0_35802068_26712.cpp:46:15: error: 'endl' was not declared in this scope
   cout<<"NO"<<endl;
               ^