user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x48,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  lea    -0x48(%rbp),%rsi
  lea    D16(%rip),%rdi
  call   <scanf@plt>
  mov    -0x48(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x48(%rbp)
  test   %eax,%eax
  je     L131
  lea    -0x3c(%rbp),%rax
  mov    %rax,-0x58(%rbp)
  jmp    L107
L67:
  mov    %rsp,-0x60(%rbp)
  movslq %edx,%rax
  shl    $0x2,%rax
  lea    0xf(%rax),%rcx
  mov    %rcx,%rdi
  and    $0xfffffffffffffff0,%rdi
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rsi
  sub    %rcx,%rsi
L1:
  cmp    %rsi,%rsp
  je     L56
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L1
L56:
  mov    %rdi,%rcx
  and    $0xfff,%ecx
  sub    %rcx,%rsp
  test   %rcx,%rcx
  je     L25
  orq    $0x0,-0x8(%rsp,%rcx,1)
L25:
  lea    0x3(%rsp),%r14
  mov    %r14,%rdi
  shr    $0x2,%rdi
  mov    %rdi,-0x68(%rbp)
  and    $0xfffffffffffffffc,%r14
  add    $0xf,%rax
  mov    %rax,%rsi
  and    $0xfffffffffffffff0,%rsi
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rcx
  sub    %rax,%rcx
L43:
  cmp    %rcx,%rsp
  je     L68
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L43
L68:
  mov    %rsi,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L138
  orq    $0x0,-0x8(%rsp,%rax,1)
L138:
  lea    0x3(%rsp),%r15
  mov    %r15,%rax
  shr    $0x2,%rax
  mov    %rax,-0x70(%rbp)
  and    $0xfffffffffffffffc,%r15
  test   %edx,%edx
  jle    L59
  mov    %r14,%r13
  mov    %r15,%r12
  mov    $0x0,%ebx
L18:
  mov    %r12,%rdx
  mov    %r13,%rsi
  lea    D6(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  add    $0x1,%ebx
  mov    -0x3c(%rbp),%edx
  add    $0x4,%r13
  add    $0x4,%r12
  cmp    %ebx,%edx
  jg     L18
L59:
  sub    $0x1,%edx
  mov    $0x0,%esi
  mov    %r14,%rdi
  call   <quickSort@plt>
  mov    -0x3c(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    $0x0,%esi
  mov    %r15,%rdi
  call   <quickSort@plt>
  mov    -0x3c(%rbp),%eax
  sub    $0x1,%eax
  cltq
  mov    -0x44(%rbp),%esi
  sub    (%r14,%rax,4),%esi
  mov    -0x68(%rbp),%rax
  mov    0x0(,%rax,4),%edi
  sub    $0x1,%edi
  call   <max@plt>
  lea    0x1(%rax),%ebx
  mov    -0x3c(%rbp),%eax
  sub    $0x1,%eax
  cltq
  mov    -0x40(%rbp),%esi
  sub    (%r15,%rax,4),%esi
  mov    -0x70(%rbp),%rax
  mov    0x0(,%rax,4),%edi
  sub    $0x1,%edi
  call   <max@plt>
  lea    0x1(%rax),%ecx
  mov    -0x3c(%rbp),%edx
  cmp    $0x1,%edx
  jle    L51
  mov    %r14,%rax
  lea    -0x1(%rdx),%esi
  shl    $0x2,%rsi
  add    %rsi,%r14
L81:
  mov    0x4(%rax),%edx
  sub    (%rax),%edx
  cmp    %edx,%ebx
  cmovl  %edx,%ebx
  add    $0x4,%rax
  cmp    %r14,%rax
  jne    L81
  mov    %r15,%rax
  add    %rsi,%r15
L50:
  mov    0x4(%rax),%edx
  sub    (%rax),%edx
  cmp    %edx,%ecx
  cmovl  %edx,%ecx
  add    $0x4,%rax
  cmp    %r15,%rax
  jne    L50
L51:
  lea    -0x1(%rbx),%esi
  sub    $0x1,%ecx
  mov    %esi,%ebx
  imul   %ecx,%ebx
  movslq %ebx,%rsi
  mov    -0x60(%rbp),%rsp
L87:
  lea    D22(%rip),%rdi
  call   <printf@plt>
  mov    -0x48(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x48(%rbp)
  test   %eax,%eax
  je     L131
L107:
  lea    -0x40(%rbp),%rdx
  lea    -0x44(%rbp),%rsi
  mov    -0x58(%rbp),%rcx
  lea    D26(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  mov    -0x3c(%rbp),%edx
  test   %edx,%edx
  jne    L67
  mov    -0x44(%rbp),%esi
  imul   -0x40(%rbp),%esi
  movslq %esi,%rsi
  jmp    L87
L131:
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L74
  mov    $0x0,%eax
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L74:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_tag: D16
type_infered: string
name: retrieve_data
arguments: data_tag: D6
type_infered: string
name: retrieve_data
arguments: data_tag: D22
type_infered: string
name: retrieve_data
arguments: data_tag: D26
type_infered: string

tool: D16: %d

tool: D6: %d%d

tool: D22: %lld


tool: D26: %d%d%d

assistant: ```c
int main() {
  int i, t, w, h, n;
  scanf("%d", &t);
  while (t--) {
    scanf("%d%d%d", &w, &h, &n);
    long long int ans;
    if (n == 0)
      ans = (w * h);
    else {
      int x[n], y[n];
      for (i = 0; i < n; i++) {
        scanf("%d%d", &x[i], &y[i]);
      }
      quickSort(x, 0, n - 1);
      quickSort(y, 0, n - 1);
      int diffx = max(x[0] - 1, w - x[n - 1]) + 1;
      int diffy = max(y[0] - 1, h - y[n - 1]) + 1;
      for (i = 1; i < n; i++) {
        if ((x[i] - x[i - 1]) > diffx)
          diffx = (x[i] - x[i - 1]);
      }
      for (i = 1; i < n; i++) {
        if ((y[i] - y[i - 1]) > diffy)
          diffy = (y[i] - y[i - 1]);
      }
      ans = (diffx - 1) * (diffy - 1);
    }
    printf("%lld\n", ans);
  }
  return 0;
}
```