foo.cc: In function 'int main()':
foo.cc:17:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   17 |         for(j=0;j<m;j++)
      |         ^~~
foo.cc:24:10: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   24 |          for(j=1;j<=n;j++)
      |          ^~~

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