Mã chấm: 19871

Main.cc: In function ‘int main()’:
Main.cc:17:5: error: ‘cin’ was not declared in this scope
     cin >> n;
     ^~~
Main.cc:17:5: note: suggested alternative: ‘main’
     cin >> n;
     ^~~
     main
Main.cc:20:5: error: ‘sort’ was not declared in this scope
     sort( a, a+n );
     ^~~~
Main.cc:20:5: note: suggested alternative: ‘short’
     sort( a, a+n );
     ^~~~
     short
Main.cc:21:33: error: ‘INT_MIN’ was not declared in this scope
     int j = 0, b[100000], nho = INT_MIN;
                                 ^~~~~~~
Main.cc:21:33: note: suggested alternative: ‘__WINT_MIN__’
     int j = 0, b[100000], nho = INT_MIN;
                                 ^~~~~~~
                                 __WINT_MIN__
Main.cc:37:5: error: ‘cout’ was not declared in this scope
     cout << ketqua;
     ^~~~