foo.c: In function 'MergeSubs':
foo.c:28:19: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   28 |                 if(a[i]>a[i+1])
      |                   ^
foo.c: In function 'main':
foo.c:47:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   47 |     for(int i=0;i<n2;i++)
      |     ^~~
foo.c:49:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   49 |         MergeSubs(a1,n1);
      |         ^~~~~~~~~

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