foo.cc: In function 'int main()':
foo.cc:81:15: warning: 'void* memset(void*, int, size_t)' specified bound 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
   81 |         memset(res,N,-1);
      |         ~~~~~~^~~~~~~~~~

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