user: 请将以下的汇编代码转换成C语言代码：

```asm
<recu>:
  endbr64
  push   %r15
  mov    %esi,%ecx
  push   %r14
  mov    %rdi,%r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %edx,0xc(%rsp)
  lea    0x10(%rsp),%r8
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  mov    $0x1,%eax
  nopl   0x0(%rax,%rax,1)
L105:
  mov    %eax,-0x4(%r8,%rax,4)
  add    $0x1,%rax
  cmp    $0xa,%rax
  jne    L105
  movslq %ecx,%r10
  movslq 0xc(%rsp),%r15
  mov    %r14,%rdi
  lea    0x34(%rsp),%rbx
  mov    (%r14,%r10,8),%r9
  lea    0x0(,%r10,8),%rbp
  lea    0x0(,%r15,4),%r12
  mov    %rbp,%rsi
  lea    0x24(%r9),%r11
  nopw   0x0(%rax,%rax,1)
L89:
  mov    %ecx,(%rsp)
  mov    (%r9),%ebp
  mov    %r8,%r13
  mov    %r8,%rax
  jmp    L71
  cs nopw 0x0(%rax,%rax,1)
L44:
  mov    (%rdi),%rcx
  cmp    (%rcx,%r12,1),%edx
  je     L108
  add    $0x4,%rax
  cmp    %rbx,%rax
  je     L116
L71:
  mov    (%rax),%edx
  cmp    %edx,%ebp
  jne    L44
L108:
  movl   $0xffffffff,(%rax)
  add    $0x4,%rax
  cmp    %rbx,%rax
  jne    L71
L116:
  add    $0x4,%r9
  mov    (%rsp),%ecx
  add    $0x8,%rdi
  cmp    %r11,%r9
  jne    L89
  imul   $0x55555556,%r15,%r15
  mov    0xc(%rsp),%eax
  mov    %rsi,%rbp
  mov    $0xffffffff,%esi
  imul   $0x55555556,%r10,%r10
  sar    $0x1f,%eax
  shr    $0x20,%r15
  sub    %eax,%r15d
  shr    $0x20,%r10
  lea    (%r15,%r15,2),%edx
  movslq %edx,%rax
  sar    $0x1f,%edx
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  sub    %edx,%eax
  lea    (%rax,%rax,2),%r15d
  mov    %ecx,%eax
  sar    $0x1f,%eax
  movslq %r15d,%r15
  sub    %eax,%r10d
  lea    0x3(%r15),%r11
  lea    (%r10,%r10,2),%edx
  movslq %edx,%rax
  sar    $0x1f,%edx
  imul   $0x55555556,%rax,%rax
  shr    $0x20,%rax
  sub    %edx,%eax
  lea    (%rax,%rax,2),%r9d
  movslq %r9d,%r9
  lea    0x3(%r9),%rax
  mov    %rax,(%rsp)
L27:
  mov    (%r14,%r9,8),%r10
  mov    %r15,%rdi
L56:
  mov    (%r10,%rdi,4),%ecx
  mov    %r8,%rax
  nopl   (%rax)
L24:
  mov    (%rax),%edx
  cmp    %edx,%ecx
  cmove  %esi,%edx
  add    $0x4,%rax
  mov    %edx,-0x4(%rax)
  cmp    %rbx,%rax
  jne    L24
  add    $0x1,%rdi
  cmp    %rdi,%r11
  jne    L56
  add    $0x1,%r9
  cmp    (%rsp),%r9
  jne    L27
  cs nopw 0x0(%rax,%rax,1)
L135:
  mov    0x0(%r13),%r15d
  cmp    $0xffffffff,%r15d
  je     L57
  mov    %r14,%rdi
  call   <copy@plt>
  mov    %rax,%rdi
  mov    (%rax,%rbp,1),%rax
  mov    %r15d,(%rax,%r12,1)
  call   <solve@plt>
  test   %rax,%rax
  jne    L19
L57:
  add    $0x4,%r13
  cmp    %rbx,%r13
  jne    L135
  xor    %eax,%eax
L19:
  mov    0x38(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L55
  add    $0x48,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L55:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int **recu(int **a, int ci, int cj) {
  int i, j, istart, iend, jstart, jend, table[9];
  for (i = 0; i < 9; i++)
    table[i] = i + 1;
  for (i = 0; i < 9; i++)
    for (j = 0; j < 9; j++)
      if (a[ci][i] == table[j])
        table[j] = -1;
      else if (a[i][cj] == table[j])
        table[j] = -1;
  istart = ((ci - (ci % 3)) / 3) * 3;
  iend = istart + 3;
  jstart = ((cj - cj % 3) / 3) * 3;
  jend = jstart + 3;
  for (; istart < iend; istart++) {
    for (j = jstart; j < jend; j++)
      for (i = 0; i < 9; i++) {
        if (a[istart][j] == table[i])
          table[i] = -1;
      }
  }
  int **m;
  for (i = 0; i < 9; i++) {
    if (table[i] == -1)
      continue;
    m = copy(a);
    m[ci][cj] = table[i];
    m = solve(m);
    if (m != NULL)
      return m;
  }
  return NULL;
}
```