foo.cc: In function 'int main()':
foo.cc:17:27: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'int*' [-Wformat=]
   17 |                 scanf("%lld%lld",&f[i].first,&f[i].second);
      |                        ~~~^      ~~~~~~~~~~~
      |                           |      |
      |                           |      int*
      |                           long long int*
      |                        %d
foo.cc:17:31: warning: format '%lld' expects argument of type 'long long int*', but argument 3 has type 'long int*' [-Wformat=]
   17 |                 scanf("%lld%lld",&f[i].first,&f[i].second);
      |                            ~~~^              ~~~~~~~~~~~~
      |                               |              |
      |                               long long int* long int*
      |                            %ld
foo.cc:20:12: warning: unused variable 'day' [-Wunused-variable]
   20 |         LL day=f[n-1].first;
      |            ^~~

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