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View Compilation Error

0_0_36750996_32662.cpp: In function 'int main()':
0_0_36750996_32662.cpp:4:9: error: 'cin' was not declared in this scope
  while (cin >> n >> m) {
         ^
0_0_36750996_32662.cpp:18:5: error: 'cout' was not declared in this scope
     cout <<" ";
     ^
0_0_36750996_32662.cpp:20:4: error: 'cout' was not declared in this scope
    cout << fixed << setprecision(2) << b / (double)m;
    ^
0_0_36750996_32662.cpp:20:12: error: 'fixed' was not declared in this scope
    cout << fixed << setprecision(2) << b / (double)m;
            ^
0_0_36750996_32662.cpp:20:35: error: 'setprecision' was not declared in this scope
    cout << fixed << setprecision(2) << b / (double)m;
                                   ^
0_0_36750996_32662.cpp:22:3: error: 'cout' was not declared in this scope
   cout << endl;
   ^
0_0_36750996_32662.cpp:22:11: error: 'endl' was not declared in this scope
   cout << endl;
           ^
0_0_36750996_32662.cpp:32:12: error: 'fixed' was not declared in this scope
    cout << fixed << setprecision(2) << fuck[i];
            ^
0_0_36750996_32662.cpp:32:35: error: 'setprecision' was not declared in this scope
    cout << fixed << setprecision(2) << fuck[i];
                                   ^


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