user: 这段汇编代码用C语言表示是什么样的：

```asm
<preferd>:
  endbr64
  push   %rbp
  mov    %edi,%ecx
  mov    $0x1,%edx
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  mov    $0x1,%r13d
  push   %r12
  mov    %r13d,%r15d
  mov    %edi,%r12d
  push   %rbx
  shl    %cl,%r15d
  sub    $0x78,%rsp
  mov    %rsi,-0x98(%rbp)
  lea    -0x3c(%rbp),%rsi
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x3c(%rbp)
  call   <mls@plt>
  lea    0x2(%r12),%ecx
  cltq
  shr    %ecx
  mov    %rax,-0x78(%rbp)
  mov    -0x3c(%rbp),%eax
  shl    %cl,%r13d
  mov    %rsp,%rcx
  lea    -0x1(%r13),%r14d
  not    %r13d
  mov    %rax,-0x60(%rbp)
  mov    %rax,%r8
  imul   %rax,%rax
  mov    %r13d,-0x44(%rbp)
  add    $0xf,%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rcx
  and    $0xfffffffffffffff0,%rdx
  cmp    %rcx,%rsp
  je     L253
L180:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L180
L253:
  mov    %rdx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  jne    L291
L264:
  lea    0x1(%r8),%eax
  mov    %rsp,%rdx
  mov    %rsp,-0x58(%rbp)
  lea    0xf(,%rax,4),%rax
  shr    $0x4,%rax
  shl    $0x4,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  sub    %rcx,%rdx
  cmp    %rdx,%rsp
  je     L89
L251:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rdx,%rsp
  jne    L251
L89:
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  jne    L166
L146:
  lea    0x3(%rsp),%rax
  sub    $0x1,%r15d
  mov    %rax,%rsi
  and    $0xfffffffffffffffc,%rax
  shr    $0x2,%rsi
  mov    %rax,-0x90(%rbp)
  mov    %rsi,-0xa0(%rbp)
  test   %r8d,%r8d
  je     L50
  mov    -0x60(%rbp),%rax
  movl   $0x0,-0x7c(%rbp)
  mov    %r15d,%r13d
  add    $0x1,%rax
  mov    %rax,-0x88(%rbp)
  cs nopw 0x0(%rax,%rax,1)
L117:
  mov    -0x7c(%rbp),%eax
  mov    -0x58(%rbp),%rsi
  mov    %rax,%rbx
  imul   -0x88(%rbp),%rax
  movb   $0x0,(%rsi,%rax,1)
  mov    %ebx,%eax
  add    $0x1,%ebx
  mov    %ebx,-0x7c(%rbp)
  cmp    %r8d,%ebx
  jae    L157
  mov    -0x78(%rbp),%rsi
  mov    %rax,-0x70(%rbp)
  mov    %r13d,%r15d
  mov    %ebx,-0x48(%rbp)
  lea    (%rsi,%rax,8),%r12
  imul   -0x60(%rbp),%rax
  mov    %rax,-0x68(%rbp)
  nopw   0x0(%rax,%rax,1)
L17:
  mov    -0x48(%rbp),%eax
  mov    %rax,-0x50(%rbp)
  test   %r15d,%r15d
  je     L26
  mov    -0x78(%rbp),%rsi
  xor    %r13d,%r13d
  lea    (%rsi,%rax,8),%rbx
  mov    %r15d,%eax
  mov    %r13d,%r15d
  mov    %eax,%r13d
  nopl   0x0(%rax,%rax,1)
L64:
  mov    (%rbx),%rsi
  mov    (%r12),%rdi
  mov    %r15d,%ecx
  mov    %r13d,%edx
  xor    %eax,%eax
  call   <innerPro@plt>
  cmp    $0xffffffff,%eax
  setne  %cl
  cmp    %eax,%r14d
  setne  %dl
  test   %dl,%cl
  je     L155
  cmp    %eax,-0x44(%rbp)
  jne    L226
L155:
  add    $0x1,%r15d
  cmp    %r13d,%r15d
  jne    L64
  mov    -0x3c(%rbp),%r8d
  mov    %r13d,%r15d
L26:
  mov    $0x1,%eax
L313:
  mov    -0x58(%rbp),%rsi
  mov    -0x50(%rbp),%rbx
  mov    -0x68(%rbp),%rdi
  addl   $0x1,-0x48(%rbp)
  mov    %rsi,%rcx
  add    -0x70(%rbp),%rsi
  add    %rbx,%rcx
  imul   -0x60(%rbp),%rbx
  mov    %al,(%rcx,%rdi,1)
  mov    %al,(%rsi,%rbx,1)
  mov    -0x48(%rbp),%eax
  cmp    %eax,%r8d
  ja     L17
  mov    %r15d,%r13d
  cmp    -0x7c(%rbp),%r8d
  ja     L117
L157:
  mov    %r13d,%r15d
L50:
  mov    -0xa0(%rbp),%rax
  mov    -0x60(%rbp),%r9
  xor    %r10d,%r10d
  mov    -0x58(%rbp),%rbx
  mov    -0x90(%rbp),%rdi
  movl   $0x0,0x0(,%rax,4)
  xor    %eax,%eax
  lea    0x1(%rax),%esi
  cmp    %r8d,%esi
  jae    L70
L159:
  mov    %r10d,%r11d
  jmp    L59
  cs nopw 0x0(%rax,%rax,1)
L80:
  add    $0x1,%esi
  cmp    %r8d,%esi
  je     L27
L67:
  mov    %r11d,%eax
  mov    (%rdi,%rax,4),%eax
L59:
  imul   %r9,%rax
  mov    %esi,%ecx
  add    %rbx,%rcx
  cmpb   $0x0,(%rcx,%rax,1)
  je     L80
  mov    %r11d,%eax
  sub    $0x1,%eax
  js     L12
  cltq
  nopw   0x0(%rax,%rax,1)
L295:
  mov    (%rdi,%rax,4),%edx
  imul   %r9,%rdx
  cmpb   $0x1,(%rcx,%rdx,1)
  jne    L80
  sub    $0x1,%rax
  test   %eax,%eax
  jns    L295
L12:
  lea    0x1(%r11),%eax
  mov    %esi,(%rdi,%rax,4)
  add    $0x1,%esi
  mov    %rax,%r11
  cmp    %r8d,%esi
  jne    L67
L27:
  cmp    %r10d,%r11d
  je     L70
  mov    %r11d,%eax
  mov    %r11d,%r10d
  mov    (%rdi,%rax,4),%eax
  lea    0x1(%rax),%esi
  cmp    %r8d,%esi
  jb     L159
L70:
  mov    -0x98(%rbp),%rax
  lea    0x1(%r10),%r13d
  mov    %r15d,%ebx
  lea    0x0(,%r13,8),%rdi
  mov    %r13d,(%rax)
  call   <malloc@plt>
  mov    %rbx,%rdi
  imul   %r13,%rdi
  mov    %rax,%r12
  shl    $0x2,%rdi
  call   <malloc@plt>
  xor    %r9d,%r9d
  xor    %r8d,%r8d
  mov    %rax,%r11
  test   %r13d,%r13d
  je     L173
  mov    -0x78(%rbp),%rdi
  mov    -0x90(%rbp),%r10
  nopw   0x0(%rax,%rax,1)
L175:
  mov    %r9d,%eax
  lea    (%r11,%rax,4),%rcx
  mov    %rcx,(%r12,%r8,8)
  test   %r15d,%r15d
  je     L285
  mov    (%r10,%r8,4),%eax
  mov    (%rdi,%rax,8),%rsi
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L210:
  mov    (%rsi,%rax,4),%edx
  mov    %edx,(%rcx,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%rbx
  jne    L210
L285:
  add    $0x1,%r8
  add    %r15d,%r9d
  cmp    %r8,%r13
  jne    L175
L173:
  mov    -0x78(%rbp),%rbx
  mov    (%rbx),%rdi
  call   <free@plt>
  mov    %rbx,%rdi
  call   <free@plt>
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L254
  lea    -0x28(%rbp),%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L291:
  orq    $0x0,-0x8(%rsp,%rax,1)
  jmp    L264
  nopl   0x0(%rax,%rax,1)
L226:
  mov    -0x3c(%rbp),%r8d
  mov    %r13d,%r15d
  xor    %eax,%eax
  jmp    L313
L166:
  orq    $0x0,-0x8(%rsp,%rax,1)
  jmp    L146
L254:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int **preferd(unsigned n, unsigned *pref_size) {
  unsigned N = 1 << n;
  unsigned i, j, k;
  int l;
  unsigned mls_size = 0;
  int **m = mls(n, &mls_size, 1);
  int mini_val1 = -1;
  int mini_val2 = -1 + (1 << ((n + 2) / 2));
  int mini_val3 = -1 - (1 << ((n + 2) / 2));
  char mat[mls_size][mls_size];
  unsigned pair[mls_size + 1], depth = 0, pdepth = 1;
  int **prefm, *prefmp;
  for (i = 0; i < mls_size; i++) {
    mat[i][i] = 0;
    for (j = i + 1; j < mls_size; j++) {
      char flag = 1;
      for (k = 0; k < N - 1; k++) {
        int inn = innerPro(m[i], m[j], N - 1, k);
        if (inn != mini_val1 && inn != mini_val2 && inn != mini_val3) {
          flag = 0;
          break;
        }
      }
      mat[i][j] = flag;
      mat[j][i] = flag;
    }
  }
  pair[depth] = 0;
  while (pdepth != depth) {
    pdepth = depth;
    for (i = pair[depth] + 1; i < mls_size; i++) {
      if (mat[pair[depth]][i]) {
        int flag = 1;
        for (l = depth - 1; l >= 0; l--)
          if (mat[pair[l]][i] != 1) {
            flag = 0;
            break;
          }
        if (flag)
          pair[++depth] = i;
      }
    }
  }
  *pref_size = depth + 1;
  prefm = malloc(sizeof(int *) * (*pref_size));
  prefmp = malloc(sizeof(int) * (*pref_size) * (N - 1));
  for (i = 0; i < depth + 1; i++) {
    prefm[i] = prefmp + i * (N - 1);
    for (j = 0; j < N - 1; j++)
      prefm[i][j] = m[pair[i]][j];
  }
  free(*m);
  free(m);
  return prefm;
}
```