/in/foo.c: In function 'Insert':
/in/foo.c:9:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for (i = 0;i < n;i++)
     ^~~
/in/foo.c:16:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
         a[i] = k;
         ^