foo.cc: In function 'int main()':
foo.cc:6:15: error: expected initializer before 'n'
    6 |     long iong n, flag = 0;
      |               ^
foo.cc:7:12: error: 'm' was not declared in this scope; did you mean 'tm'?
    7 |     cin >> m;
      |            ^
      |            tm
foo.cc:14:31: error: 'n' was not declared in this scope
   14 |     for (int i = 2; i <= sqrt(n); i++)
      |                               ^
foo.cc:16:6: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   16 |      if (0 == n% 1);
      |      ^~
foo.cc:17:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   17 |         {
      |         ^
foo.cc:18:10: error: 'flag' was not declared in this scope
   18 |          flag = 1;
      |          ^~~~
foo.cc:22:14: error: 'flag' was not declared in this scope
   22 |     if (8 == flag)
      |              ^~~~
foo.cc:26:1: error: expected '}' at end of input
   26 | }
      | ^
foo.cc:13:5: note: to match this '{'
   13 |     {
      |     ^
foo.cc:26:1: error: expected '}' at end of input
   26 | }
      | ^
foo.cc:5:1: note: to match this '{'
    5 | {
      | ^

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