foo.c: In function 'main':
foo.c:39:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   39 |     for(int i=0;i<n3;i++)
      |     ^~~
foo.c:41:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   41 |         Merge(a,b,n1,n2);
      |         ^~~~~

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