user: 这段汇编代码用C语言表示是什么样的：

```asm
<combine>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edx,%ebx
  mov    %esi,%edx
  sub    %ecx,%edx
  sub    $0x68,%rsp
  cmp    %edx,%ebx
  jg     L275
  mov    %rdi,%rbp
  mov    %esi,%r15d
  test   %ebx,%ebx
  je     L204
  mov    %ecx,%eax
  lea    -0x1(%rbx),%edx
  lea    -0x2(%rbx),%esi
  mov    %ebx,0x4c(%rsp)
  add    $0x1,%eax
  lea    -0x3(%rbx),%edi
  mov    %edx,0x38(%rsp)
  lea    -0x4(%rbx),%edx
  cltq
  mov    %esi,0x3c(%rsp)
  lea    -0x5(%rbx),%ecx
  lea    -0x6(%rbx),%esi
  mov    %rax,0x30(%rsp)
  lea    0x1(%r15),%eax
  mov    %edi,0x40(%rsp)
  lea    -0x7(%rbx),%edi
  mov    %edx,0x44(%rsp)
  lea    -0x8(%rbx),%edx
  mov    %eax,0xc(%rsp)
  lea    -0x9(%rbx),%eax
  mov    %ecx,0x14(%rsp)
  mov    %esi,0x10(%rsp)
  mov    %edi,0x18(%rsp)
  mov    %edx,0x1c(%rsp)
  mov    %eax,0x48(%rsp)
L186:
  mov    0x30(%rsp),%rax
  mov    %r15d,%ecx
  mov    0x38(%rsp),%edi
  sub    %eax,%ecx
  movl   $0x1,-0x4(%rbp,%rax,4)
  mov    %eax,%r12d
  cmp    %ecx,%edi
  jg     L231
  add    $0x1,%r12d
  movslq %r12d,%rax
  mov    %rax,0x28(%rsp)
  test   %edi,%edi
  je     L164
L301:
  mov    0x28(%rsp),%rax
  mov    %r15d,%ecx
  mov    0x3c(%rsp),%esi
  sub    %eax,%ecx
  movl   $0x1,-0x4(%rbp,%rax,4)
  mov    %eax,%ebx
  cmp    %ecx,%esi
  jg     L315
  add    $0x1,%ebx
  movslq %ebx,%rax
  mov    %rax,0x20(%rsp)
  test   %esi,%esi
  je     L142
L2:
  mov    0x20(%rsp),%rax
  mov    %r15d,%ecx
  mov    0x40(%rsp),%edx
  sub    %eax,%ecx
  movl   $0x1,-0x4(%rbp,%rax,4)
  mov    %eax,%ebx
  cmp    %ecx,%edx
  jg     L130
  add    $0x1,%ebx
  mov    %r15d,%r14d
  movslq %ebx,%rbx
  test   %edx,%edx
  je     L45
L48:
  mov    %r14d,%eax
  mov    0x44(%rsp),%edi
  movl   $0x1,-0x4(%rbp,%rbx,4)
  mov    %ebx,%r12d
  sub    %ebx,%eax
  cmp    %eax,%edi
  jg     L259
  add    $0x1,%r12d
  movslq %r12d,%r12
  test   %edi,%edi
  je     L276
  mov    %rbx,0x50(%rsp)
L86:
  mov    %r14d,%eax
  mov    0x14(%rsp),%ecx
  mov    %r12d,%r9d
  movl   $0x1,-0x4(%rbp,%r12,4)
  sub    %r12d,%eax
  cmp    %eax,%ecx
  jg     L71
  add    $0x1,%r9d
  movslq %r9d,%r15
  test   %ecx,%ecx
  je     L46
  mov    %r12,0x58(%rsp)
  mov    %r14d,%eax
  mov    %r15,%r14
  mov    %eax,%r15d
  nopl   0x0(%rax)
L73:
  mov    %r15d,%edx
  mov    0x10(%rsp),%esi
  mov    %r14d,%eax
  movl   $0x1,-0x4(%rbp,%r14,4)
  sub    %r14d,%edx
  cmp    %esi,%edx
  jl     L211
  add    $0x1,%eax
  movslq %eax,%r12
  test   %esi,%esi
  je     L311
  mov    %r15d,%eax
  mov    %r12,%r15
  mov    %rbp,%r12
  mov    %eax,%ebp
  nopw   0x0(%rax,%rax,1)
L270:
  mov    %ebp,%eax
  mov    0x18(%rsp),%ecx
  mov    %r15d,%ebx
  movl   $0x1,-0x4(%r12,%r15,4)
  sub    %r15d,%eax
  cmp    %eax,%ecx
  jg     L155
  add    $0x1,%ebx
  movslq %ebx,%rbx
  test   %ecx,%ecx
  je     L121
  nopl   0x0(%rax,%rax,1)
L302:
  mov    %ebp,%eax
  mov    0x1c(%rsp),%esi
  movslq %ebx,%r13
  movl   $0x1,-0x4(%r12,%rbx,4)
  sub    %ebx,%eax
  cmp    %eax,%esi
  jg     L16
  test   %esi,%esi
  je     L203
  mov    %ebp,%eax
  mov    %rbx,%rbp
  mov    %eax,%ebx
  nopw   0x0(%rax,%rax,1)
L69:
  mov    0x48(%rsp),%edx
  lea    0x1(%r13),%ecx
  mov    %ebx,%esi
  mov    %r12,%rdi
  movl   $0x1,(%r12,%r13,4)
  call   <combine>
  movl   $0x0,(%r12,%r13,4)
  mov    %ebx,%edx
  add    $0x1,%r13
  sub    %r13d,%edx
  cmp    %edx,0x1c(%rsp)
  jle    L69
  mov    %ebx,%eax
  mov    %rbp,%rbx
  mov    %eax,%ebp
L16:
  movl   $0x0,-0x4(%r12,%rbx,4)
  mov    0xc(%rsp),%eax
  add    $0x1,%rbx
  sub    %ebx,%eax
  cmp    %eax,0x18(%rsp)
  jle    L302
L155:
  movl   $0x0,-0x4(%r12,%r15,4)
  mov    0xc(%rsp),%eax
  add    $0x1,%r15
  sub    %r15d,%eax
  cmp    %eax,0x10(%rsp)
  jle    L270
  mov    %ebp,%r15d
  mov    %r12,%rbp
L211:
  movl   $0x0,-0x4(%rbp,%r14,4)
  mov    0xc(%rsp),%eax
  add    $0x1,%r14
  sub    %r14d,%eax
  cmp    0x14(%rsp),%eax
  jge    L73
  mov    0x58(%rsp),%r12
  mov    %r15d,%r14d
L71:
  movl   $0x0,-0x4(%rbp,%r12,4)
  mov    0xc(%rsp),%eax
  add    $0x1,%r12
  sub    %r12d,%eax
  cmp    %eax,0x44(%rsp)
  jle    L86
  mov    0x50(%rsp),%rbx
L259:
  mov    0xc(%rsp),%eax
  movl   $0x0,-0x4(%rbp,%rbx,4)
  add    $0x1,%rbx
  sub    %ebx,%eax
  cmp    %eax,0x40(%rsp)
  jle    L48
  mov    %r14d,%r15d
L130:
  mov    0x20(%rsp),%rax
  mov    0xc(%rsp),%edx
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  mov    %rax,0x20(%rsp)
  sub    %eax,%edx
  cmp    %edx,0x3c(%rsp)
  jle    L2
L315:
  mov    0x28(%rsp),%rax
  mov    0xc(%rsp),%edi
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  mov    %rax,0x28(%rsp)
  sub    %eax,%edi
  cmp    %edi,0x38(%rsp)
  jle    L301
  jmp    L231
  nop
L203:
  mov    %ebp,%esi
  mov    %r12,%rdi
  call   <printArr@plt>
  jmp    L16
L121:
  mov    %ebp,%esi
  mov    %r12,%rdi
  call   <printArr@plt>
  jmp    L155
L46:
  mov    %r14d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L71
L311:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L211
L276:
  mov    %r14d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L259
L45:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L130
L142:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L315
L164:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
L231:
  mov    0x30(%rsp),%rax
  mov    0xc(%rsp),%ecx
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  mov    %rax,0x30(%rsp)
  sub    %eax,%ecx
  cmp    %ecx,0x4c(%rsp)
  jle    L186
L275:
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L204:
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1050 <printArr@plt>
```

assistant: ```c
void combine(int *arr, int len, int sub, int pos) {
  if (sub > len - pos) {
    return;
  }
  if (!sub) {
    printArr(arr, len);
    return;
  }
  arr[pos] = 1;
  combine(arr, len, sub - 1, pos + 1);
  arr[pos] = 0;
  combine(arr, len, sub, pos + 1);
}
```