View Compilation Error

0_0_26289739_21493.cpp: In function 'void init()':
0_0_26289739_21493.cpp:17:36: error: 'cin' was not declared in this scope
  for(i=0;i<n;i++) for(j=0;j<m;j++) cin>>a[i][j],x[i][j]=false;
                                    ^
0_0_26289739_21493.cpp:18:36: error: 'cin' was not declared in this scope
  for(i=0;i<n;i++) for(j=0;j<m;j++) cin>>b[i][j],y[i][j]=false;
                                    ^
0_0_26289739_21493.cpp: In function 'int main()':
0_0_26289739_21493.cpp:24:2: error: 'cin' was not declared in this scope
  cin>>t;
  ^
0_0_26289739_21493.cpp:38:4: error: 'cout' was not declared in this scope
    cout<<sum1<<"0000 RMB"<<endl;
    ^
0_0_26289739_21493.cpp:38:28: error: 'endl' was not declared in this scope
    cout<<sum1<<"0000 RMB"<<endl;
                            ^
0_0_26289739_21493.cpp:40:4: error: 'cout' was not declared in this scope
    cout<<sum1<<" RMB"<<endl;
    ^
0_0_26289739_21493.cpp:40:24: error: 'endl' was not declared in this scope
    cout<<sum1<<" RMB"<<endl;
                        ^