foo.cc: In function 'bool is_prime(int)':
foo.cc:9:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(x<2||(x%2==0 && x>2))
     ^~
foo.cc:11:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  bool flag=true;
  ^~~~

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