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View Compilation Error

0_0_33658526_25265.cpp: In function 'int main()':
0_0_33658526_25265.cpp:22:11: error: 'cin' was not declared in this scope
     while(cin>>n>>m)
           ^
0_0_33658526_25265.cpp:33:40: error: 'cout' was not declared in this scope
             if(Map.find(a)!=Map.end()) cout<<Map[a]<<endl;
                                        ^
0_0_33658526_25265.cpp:33:54: error: 'endl' was not declared in this scope
             if(Map.find(a)!=Map.end()) cout<<Map[a]<<endl;
                                                      ^
0_0_33658526_25265.cpp:38:17: error: 'cout' was not declared in this scope
                 cout<<a<<endl;
                 ^
0_0_33658526_25265.cpp:38:26: error: 'endl' was not declared in this scope
                 cout<<a<<endl;
                          ^
0_0_33658526_25265.cpp:43:17: error: 'cout' was not declared in this scope
                 cout<<a<<endl;
                 ^
0_0_33658526_25265.cpp:43:26: error: 'endl' was not declared in this scope
                 cout<<a<<endl;
                          ^
0_0_33658526_25265.cpp:48:17: error: 'cout' was not declared in this scope
                 cout<<a<<endl;
                 ^
0_0_33658526_25265.cpp:48:26: error: 'endl' was not declared in this scope
                 cout<<a<<endl;
                          ^


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