View Compilation Error

0_0_36179997_21223.cpp: In function 'int get_divisor(int)':
0_0_36179997_21223.cpp:9:2: error: 'map' was not declared in this scope
  map<int, int> primes;
  ^
0_0_36179997_21223.cpp:9:6: error: expected primary-expression before 'int'
  map<int, int> primes;
      ^
0_0_36179997_21223.cpp:12:4: error: 'primes' was not declared in this scope
    primes[i]++;
    ^
0_0_36179997_21223.cpp:16:13: error: 'primes' was not declared in this scope
  if (n > 1) primes[n]++;
             ^
0_0_36179997_21223.cpp:18:17: error: 'primes' was not declared in this scope
  for (auto &x : primes) {
                 ^
0_0_36179997_21223.cpp:21:10: error: 'm' was not declared in this scope
   while (m--) {
          ^