foo.cc: In function 'int main()':
foo.cc:12:18: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'll*' {aka 'long long int*'} [-Wformat=]
   12 |         scanf("%ld",&t);
      |                ~~^  ~~
      |                  |  |
      |                  |  ll* {aka long long int*}
      |                  long int*
      |                %lld
foo.cc:18:18: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'll*' {aka 'long long int*'} [-Wformat=]
   18 |         scanf("%ld%ld",&x,&y);
      |                ~~^     ~~
      |                  |     |
      |                  |     ll* {aka long long int*}
      |                  long int*
      |                %lld
foo.cc:18:21: warning: format '%ld' expects argument of type 'long int*', but argument 3 has type 'll*' {aka 'long long int*'} [-Wformat=]
   18 |         scanf("%ld%ld",&x,&y);
      |                   ~~^     ~~
      |                     |     |
      |                     |     ll* {aka long long int*}
      |                     long int*
      |                   %lld
foo.cc:19:19: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'll' {aka 'long long int'} [-Wformat=]
   19 |         printf("%ld\n",a[y]-a[x-1]);//a[i]表示第i个珠子时黑珠子的个数
      |                 ~~^    ~~~~~~~~~~~
      |                   |        |
      |                   long int ll {aka long long int}
      |                 %lld

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