foo.c: In function 'main':
foo.c:11:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if (k1 == 2&&k2 == 2)
  ^~
foo.c:13:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   for (int i = 0; i < k1 - 3; i++)
   ^~~
foo.c:6:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &k1, &k2);
  ^~~~~~~~~~~~~~~~~~~~~~~

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