/in/foo.cc: In function 'int main()':
/in/foo.cc:27:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    if(r==0)
    ^~
/in/foo.cc:29:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
       n=m;
       ^