View Compilation Error

0_0_30557402_15774.cpp: In function 'int main()':
0_0_30557402_15774.cpp:102:13: error: 'cout' was not declared in this scope
             cout << "YES" << endl;
             ^
0_0_30557402_15774.cpp:102:30: error: 'endl' was not declared in this scope
             cout << "YES" << endl;
                              ^
0_0_30557402_15774.cpp:120:13: error: 'cout' was not declared in this scope
             cout << maxx << endl;
             ^
0_0_30557402_15774.cpp:120:29: error: 'endl' was not declared in this scope
             cout << maxx << endl;
                             ^