View Compilation Error

0_0_21000468_22737.cpp: In function 'int main()':
0_0_21000468_22737.cpp:13:11: error: 'cin' was not declared in this scope
     while(cin>>rowsNum>>columnsNum>>startColumn)
           ^
0_0_21000468_22737.cpp:50:13: error: 'cout' was not declared in this scope
             cout<<totalSteps<<" step(s) to exit"<<endl;
             ^
0_0_21000468_22737.cpp:50:51: error: 'endl' was not declared in this scope
             cout<<totalSteps<<" step(s) to exit"<<endl;
                                                   ^
0_0_21000468_22737.cpp:54:13: error: 'cout' was not declared in this scope
             cout<<steps[startRow][startColumn]<<" step(s) before a loop of "<<totalSteps-steps[startRow][startColumn]<<" step(s)"<<endl;
             ^
0_0_21000468_22737.cpp:54:132: error: 'endl' was not declared in this scope
             cout<<steps[startRow][startColumn]<<" step(s) before a loop of "<<totalSteps-steps[startRow][startColumn]<<" step(s)"<<endl;
                                                                                                                                    ^