foo.cc: In function 'int main()':
foo.cc:17:11: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'LL*' {aka 'long long int*'} [-Wformat=]
   17 |   scanf("%d%d%d%d", &a0, &a1, &b0, &b1);
      |          ~^         ~~~
      |           |         |
      |           int*      LL* {aka long long int*}
      |          %lld
foo.cc:17:13: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'LL*' {aka 'long long int*'} [-Wformat=]
   17 |   scanf("%d%d%d%d", &a0, &a1, &b0, &b1);
      |            ~^            ~~~
      |             |            |
      |             int*         LL* {aka long long int*}
      |            %lld
foo.cc:17:15: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'LL*' {aka 'long long int*'} [-Wformat=]
   17 |   scanf("%d%d%d%d", &a0, &a1, &b0, &b1);
      |              ~^               ~~~
      |               |               |
      |               int*            LL* {aka long long int*}
      |              %lld
foo.cc:17:17: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'LL*' {aka 'long long int*'} [-Wformat=]
   17 |   scanf("%d%d%d%d", &a0, &a1, &b0, &b1);
      |                ~^                  ~~~
      |                 |                  |
      |                 int*               LL* {aka long long int*}
      |                %lld
foo.cc:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
foo.cc:17:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |   scanf("%d%d%d%d", &a0, &a1, &b0, &b1);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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