foo.cc: In function 'int main()':
foo.cc:10:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   10 |         for(j=2;j<i;j++)
      |         ^~~
foo.cc:13:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   13 |   if(j==i)
      |   ^~

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