foo.cc: In function 'int main()':
foo.cc:15:16: warning: unknown conversion type character 'L' in format [-Wformat=]
   15 |   scanf("LLd %LLd",&n,&m);
      |                ^
foo.cc:15:9: warning: too many arguments for format [-Wformat-extra-args]
   15 |   scanf("LLd %LLd",&n,&m);
      |         ^~~~~~~~~~
foo.cc:20:26: warning: unknown conversion type character 'L' in format [-Wformat=]
   20 |             scanf("LLd %LLd", &a[i][j]);
      |                          ^
foo.cc:20:19: warning: too many arguments for format [-Wformat-extra-args]
   20 |             scanf("LLd %LLd", &a[i][j]);
      |                   ^~~~~~~~~~
foo.cc:37:10: warning: too many arguments for format [-Wformat-extra-args]
   37 |   printf("LLd\n",ans);
      |          ^~~~~~~
foo.cc:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   15 |   scanf("LLd %LLd",&n,&m);
      |   ~~~~~^~~~~~~~~~~~~~~~~~
foo.cc:20:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |             scanf("LLd %LLd", &a[i][j]);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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