foo.cc: In function 'int main()':
foo.cc:16:8: warning: ignoring return value of 'int system(const char*)', declared with attribute warn_unused_result [-Wunused-result]
   16 |  system("pause");
      |  ~~~~~~^~~~~~~~~
foo.cc:11:6: warning: 'sb' may be used uninitialized in this function [-Wmaybe-uninitialized]
   11 |    sb++;
      |    ~~^~

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