/in/foo.c: In function 'main':
/in/foo.c:10:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 for(i=1;i<=N;i++)
 ^~~
/in/foo.c:12:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  for(i=1;i<=M;i++)
  ^~~