foo.cc: In function 'int main()':
foo.cc:20:9: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
   20 | scanf("%d%d", &n, &k);
      |        ~^     ~~
      |         |     |
      |         int*  long long int*
      |        %lld
foo.cc:20:11: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
   20 | scanf("%d%d", &n, &k);
      |          ~^       ~~
      |           |       |
      |           int*    long long int*
      |          %lld
foo.cc:23:9: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
   23 | scanf("%d", &m[i][j]);
      |        ~^   ~~~~~~~~
      |         |   |
      |         |   long long int*
      |         int*
      |        %lld
foo.cc:20:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 | scanf("%d%d", &n, &k);
      | ~~~~~^~~~~~~~~~~~~~~~
foo.cc:23:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 | scanf("%d", &m[i][j]);
      | ~~~~~^~~~~~~~~~~~~~~~

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