user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<main>:
  endbr64
  push   %r14
  push   %r13
  lea    D23(%rip),%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xc90,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xc88(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  lea    0xa0(%rsp),%r12
  lea    0xd20(%rsp),%r14
L55:
  lea    -0xa0(%r12),%rbx
  nopl   0x0(%rax,%rax,1)
L62:
  mov    %rbx,%rsi
  mov    %r13,%rdi
  add    $0x8,%rbx
  call   <scanf@plt>
  cmp    %r12,%rbx
  jne    L62
  lea    0xa0(%rbx),%r12
  cmp    %r14,%r12
  jne    L55
  movsd  D15(%rip),%xmm5
  pxor   %xmm0,%xmm0
  xor    %r11d,%r11d
  nop
L22:
  mov    %r11,%r9
  mov    %rbp,%r10
  mov    $0x4,%r8d
  nopl   0x0(%rax)
L20:
  lea    -0x4(%r8),%rax
  mov    %r10,%rsi
  mov    %r10,%rcx
  mov    %r11,%rdx
  movapd %xmm5,%xmm6
  movapd %xmm5,%xmm4
  movapd %xmm5,%xmm2
  movapd %xmm5,%xmm1
L34:
  lea    (%rax,%r9,1),%rdi
  cmp    $0x13,%rdi
  jg     L103
  pxor   %xmm3,%xmm3
  cvtsi2sdq (%rcx),%xmm3
  mulsd  %xmm3,%xmm1
  cmp    $0x13,%rax
  jg     L73
  pxor   %xmm3,%xmm3
  cvtsi2sdq 0x0(%rbp,%rax,8),%xmm3
  mulsd  %xmm3,%xmm2
  pxor   %xmm3,%xmm3
  cvtsi2sdq (%rsi),%xmm3
  mulsd  %xmm3,%xmm4
  test   %rdx,%rdx
  jns    L43
  nopl   0x0(%rax,%rax,1)
L73:
  add    $0x1,%rax
  sub    $0x1,%rdx
  add    $0xa0,%rcx
  add    $0xa8,%rsi
  cmp    %r8,%rax
  jne    L34
  maxsd  %xmm0,%xmm1
  lea    0x1(%rax),%r8
  add    $0x8,%r10
  sub    $0x1,%r9
  maxsd  %xmm1,%xmm2
  maxsd  %xmm2,%xmm4
  maxsd  %xmm4,%xmm6
  movapd %xmm6,%xmm0
  cmp    $0x17,%rax
  jne    L20
  add    $0x1,%r11
  add    $0xa0,%rbp
  cmp    $0x14,%r11
  jne    L22
  lea    D4(%rip),%rdi
  call   <printf@plt>
  mov    0xc88(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L33
  add    $0xc90,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax,%rax,1)
L103:
  cmp    $0x13,%rax
  jg     L73
  pxor   %xmm3,%xmm3
  cvtsi2sdq 0x0(%rbp,%rax,8),%xmm3
  mulsd  %xmm3,%xmm2
  test   %rdx,%rdx
  js     L73
L43:
  lea    (%rdx,%rdx,4),%rdi
  pxor   %xmm3,%xmm3
  lea    (%rax,%rdi,4),%rdi
  cvtsi2sdq (%rsp,%rdi,8),%xmm3
  mulsd  %xmm3,%xmm6
  jmp    L73
L33:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D23
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D15
type_guessed: f32[2]
name: extract_symbolic_data
arguments: data_tag: D4
type_guessed: string

tool: D23: %Ld

tool: {"D15": [0.0,1.875]}

tool: D4: %.0lf

assistant: ```c
int main() {
  long long i, j, k;
  double s1, s2, s3, s4, max = 0;
  long long a[20][20];
  for (i = 0; i < 20; i++)
    for (j = 0; j < 20; j++)
      scanf("%Ld", &a[i][j]);
  for (i = 0; i < 20; i++) {
    for (j = 0; j < 20; j++) {
      k = 0;
      s1 = s2 = s3 = s4 = 1;
      while (1) {
        if (i + k < 20)
          s1 *= a[i + k][j];
        if (j + k < 20)
          s2 *= a[i][j + k];
        if (i + k < 20 && j + k < 20)
          s3 *= a[i + k][j + k];
        if (i - k >= 0 && j + k < 20)
          s4 *= a[i - k][j + k];
        k++;
        if (k == 4)
          break;
      }
      if (s1 > max)
        max = s1;
      if (s2 > max)
        max = s2;
      if (s3 > max)
        max = s3;
      if (s4 > max)
        max = s4;
    }
  }
  printf("%.0lf", max);
  return 0;
}
```