View Compilation Error

0_0_25459623_27386.cpp: In function 'int main()':
0_0_25459623_27386.cpp:59:13: error: 'i' was not declared in this scope
         for(i=0;i<26;i++)
             ^
0_0_25459623_27386.cpp:66:13: error: 'cout' was not declared in this scope
             cout<<"Ordering is possible."<<endl;
             ^
0_0_25459623_27386.cpp:66:44: error: 'endl' was not declared in this scope
             cout<<"Ordering is possible."<<endl;
                                            ^
0_0_25459623_27386.cpp:72:13: error: 'cout' was not declared in this scope
             cout<<"Ordering is possible."<<endl;
             ^
0_0_25459623_27386.cpp:72:44: error: 'endl' was not declared in this scope
             cout<<"Ordering is possible."<<endl;
                                            ^
0_0_25459623_27386.cpp:75:9: error: 'cout' was not declared in this scope
         cout<<"The door cannot be opened."<<endl;  
         ^
0_0_25459623_27386.cpp:75:45: error: 'endl' was not declared in this scope
         cout<<"The door cannot be opened."<<endl;  
                                             ^