user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<C>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %edi,0x30(%rsp)
  cmp    %esi,%edi
  jl     L651
  je     L369
  mov    %esi,%r8d
  test   %esi,%esi
  je     L369
  movl   $0x0,0x18(%rsp)
L359:
  mov    0x30(%rsp),%esi
  mov    %esi,%eax
  sub    $0x1,%esi
  mov    %esi,0x30(%rsp)
  cmp    %eax,%r8d
  jg     L209
  cmp    $0x1,%r8d
  je     L428
  cmp    %eax,%r8d
  je     L428
  lea    -0x2(%r8),%eax
  mov    %esi,0x4c(%rsp)
  mov    %r8d,%r11d
  mov    %eax,0x50(%rsp)
  movl   $0x0,0x1c(%rsp)
L349:
  mov    0x4c(%rsp),%eax
  mov    0x50(%rsp),%edi
  mov    %eax,0x5c(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x4c(%rsp)
  cmp    %edi,%eax
  jl     L421
  test   %edi,%edi
  je     L579
  cmp    %edi,%eax
  je     L579
  lea    -0x3(%r11),%esi
  mov    %eax,0x10(%rsp)
  mov    %esi,0x54(%rsp)
  movl   $0x0,0x20(%rsp)
L142:
  subl   $0x1,0x10(%rsp)
  mov    0x54(%rsp),%ecx
  mov    0x10(%rsp),%eax
  cmp    %ecx,%eax
  jl     L430
  test   %ecx,%ecx
  je     L506
  cmp    %ecx,%eax
  je     L506
  lea    -0x4(%r11),%edx
  mov    %eax,0x14(%rsp)
  mov    %edx,0x58(%rsp)
  movl   $0x0,0x24(%rsp)
L175:
  subl   $0x1,0x14(%rsp)
  mov    0x58(%rsp),%eax
  mov    0x14(%rsp),%r8d
  cmp    %eax,%r8d
  jl     L167
  je     L341
  test   %eax,%eax
  je     L341
  lea    -0x5(%r11),%eax
  movl   $0x0,0x28(%rsp)
  mov    %eax,0x2c(%rsp)
L699:
  mov    0x2c(%rsp),%eax
  sub    $0x1,%r8d
  cmp    %eax,%r8d
  jl     L174
  test   %eax,%eax
  je     L259
  cmp    %eax,%r8d
  je     L259
  lea    -0x6(%r11),%r9d
  mov    %r8d,%r15d
  xor    %edx,%edx
L615:
  sub    $0x1,%r15d
  cmp    %r9d,%r15d
  jl     L452
  test   %r9d,%r9d
  je     L288
  cmp    %r9d,%r15d
  je     L288
  xor    %ebx,%ebx
  lea    -0x7(%r11),%r14d
  mov    %r15d,%r13d
  mov    %r15d,%ecx
  mov    %ebx,%r15d
  mov    %r14d,%ebx
L37:
  sub    $0x1,%r13d
  cmp    %ebx,%r13d
  jl     L495
  test   %ebx,%ebx
  je     L4
  cmp    %ebx,%r13d
  je     L4
  lea    -0x8(%r11),%r10d
  mov    %ebx,0x8(%rsp)
  mov    %r13d,%r14d
  xor    %ebp,%ebp
  mov    %r11d,0xc(%rsp)
  mov    %r10d,%ebx
  mov    %r15d,%r11d
  mov    %r13d,%r10d
L234:
  sub    $0x1,%r14d
  cmp    %ebx,%r14d
  jl     L80
  test   %ebx,%ebx
  je     L42
  cmp    %ebx,%r14d
  je     L42
  mov    0xc(%rsp),%eax
  mov    %r14d,0x34(%rsp)
  mov    %r14d,%edi
  xor    %r12d,%r12d
  mov    %ebp,0x38(%rsp)
  mov    %ecx,%r13d
  mov    %r10d,%r15d
  mov    %edx,%r14d
  lea    -0x9(%rax),%esi
  mov    %r8d,%ebp
L323:
  sub    $0x1,%edi
  mov    %r9d,0x48(%rsp)
  mov    %r11d,0x44(%rsp)
  mov    %esi,0x40(%rsp)
  mov    %edi,0x3c(%rsp)
  call   <C>
  mov    0x3c(%rsp),%edi
  mov    0x40(%rsp),%esi
  add    %eax,%r12d
  mov    0x44(%rsp),%r11d
  mov    0x48(%rsp),%r9d
  cmp    %ebx,%edi
  jl     L168
  jne    L323
  mov    %ebp,%r8d
  mov    %r14d,%edx
  mov    0x38(%rsp),%ebp
  mov    0x34(%rsp),%r14d
  mov    %r13d,%ecx
  mov    %r15d,%r10d
  add    $0x1,%r12d
L107:
  add    %r12d,%ebp
  cmp    0x8(%rsp),%r14d
  jl     L233
  jne    L234
  mov    %r11d,%r15d
  mov    0x8(%rsp),%ebx
  mov    0xc(%rsp),%r11d
  mov    %r10d,%r13d
  lea    0x1(%rbp),%eax
L669:
  add    %eax,%r15d
  cmp    %r9d,%r13d
  jl     L15
L109:
  jne    L37
  mov    %r15d,%ebx
  mov    %ecx,%r15d
  add    $0x1,%ebx
L298:
  add    %ebx,%edx
  cmp    0x2c(%rsp),%r15d
  jl     L594
L43:
  jne    L615
  mov    %edx,%r14d
  add    $0x1,%r14d
L564:
  add    %r14d,0x28(%rsp)
  cmp    0x58(%rsp),%r8d
  jl     L318
L292:
  jne    L699
  mov    0x28(%rsp),%eax
  add    $0x1,%eax
L442:
  add    %eax,0x24(%rsp)
  mov    0x54(%rsp),%esi
  cmp    %esi,0x14(%rsp)
  jl     L285
L195:
  jne    L175
  mov    0x24(%rsp),%eax
  add    $0x1,%eax
L284:
  add    %eax,0x20(%rsp)
  mov    0x50(%rsp),%edx
  cmp    %edx,0x10(%rsp)
  jl     L689
L17:
  jne    L142
  mov    0x20(%rsp),%eax
  add    $0x1,%eax
L486:
  add    %eax,0x1c(%rsp)
  cmp    0x5c(%rsp),%r11d
  jg     L343
L294:
  jne    L349
  mov    0x1c(%rsp),%eax
  mov    %r11d,%r8d
  add    $0x1,%eax
L304:
  add    %eax,0x18(%rsp)
  cmp    %r8d,0x30(%rsp)
  jl     L46
L276:
  jne    L359
  mov    0x18(%rsp),%eax
  add    $0x1,%eax
L532:
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L233:
  mov    %r11d,%r15d
  lea    -0x1(%rbp),%eax
  mov    %r10d,%r13d
  mov    0x8(%rsp),%ebx
  mov    0xc(%rsp),%r11d
  add    %eax,%r15d
  cmp    %r9d,%r13d
  jge    L109
L15:
  mov    %r15d,%ebx
  mov    %ecx,%r15d
  sub    $0x1,%ebx
  add    %ebx,%edx
  cmp    0x2c(%rsp),%r15d
  jge    L43
L594:
  mov    %edx,%r14d
  sub    $0x1,%r14d
  add    %r14d,0x28(%rsp)
  cmp    0x58(%rsp),%r8d
  jge    L292
L318:
  mov    0x28(%rsp),%eax
  mov    0x54(%rsp),%esi
  sub    $0x1,%eax
  add    %eax,0x24(%rsp)
  cmp    %esi,0x14(%rsp)
  jge    L195
L285:
  mov    0x24(%rsp),%eax
  mov    0x50(%rsp),%edx
  sub    $0x1,%eax
  add    %eax,0x20(%rsp)
  cmp    %edx,0x10(%rsp)
  jge    L17
L689:
  mov    0x20(%rsp),%eax
  sub    $0x1,%eax
  add    %eax,0x1c(%rsp)
  cmp    0x5c(%rsp),%r11d
  jle    L294
L343:
  mov    0x1c(%rsp),%eax
  mov    %r11d,%r8d
  sub    $0x1,%eax
  add    %eax,0x18(%rsp)
  cmp    %r8d,0x30(%rsp)
  jge    L276
L46:
  mov    0x18(%rsp),%eax
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  sub    $0x1,%eax
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopw   0x0(%rax,%rax,1)
L80:
  mov    $0xffffffff,%r12d
  jmp    L107
L4:
  mov    $0x1,%eax
  jmp    L669
L452:
  mov    $0xffffffff,%ebx
  jmp    L298
L288:
  mov    $0x1,%ebx
  jmp    L298
  nopl   0x0(%rax)
L168:
  mov    %ebp,%r8d
  mov    %r14d,%edx
  mov    0x38(%rsp),%ebp
  mov    0x34(%rsp),%r14d
  mov    %r13d,%ecx
  mov    %r15d,%r10d
  sub    $0x1,%r12d
  jmp    L107
L259:
  mov    $0x1,%r14d
  jmp    L564
L174:
  mov    $0xffffffff,%r14d
  jmp    L564
  nopl   0x0(%rax)
L42:
  mov    $0x1,%r12d
  jmp    L107
L495:
  mov    $0xffffffff,%eax
  jmp    L669
L341:
  mov    $0x1,%eax
  jmp    L442
L167:
  mov    $0xffffffff,%eax
  jmp    L442
L506:
  mov    $0x1,%eax
  jmp    L284
L430:
  mov    $0xffffffff,%eax
  jmp    L284
L579:
  mov    $0x1,%eax
  jmp    L486
L421:
  mov    $0xffffffff,%eax
  jmp    L486
L428:
  mov    $0x1,%eax
  jmp    L304
L209:
  mov    $0xffffffff,%eax
  jmp    L304
L651:
  add    $0x68,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L369:
  mov    $0x1,%eax
  jmp    L532
```

assistant: ```c
int C(int n, int k) {
  if (k > n)
    return -1;
  if (n == k || k == 0)
    return 1;
  return C(n - 1, k - 1) + C(n - 1, k);
}
```