user: 这段汇编代码用C语言表示是什么样的？

```asm
<k_sum>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    %edx,-0x30(%rbp)
  mov    %ecx,-0x34(%rbp)
  mov    %r8d,-0x38(%rbp)
  mov    %r9d,-0x3c(%rbp)
  cmpl   $0x2,-0x3c(%rbp)
  jne    L25
  jmp    L70
L146:
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  add    %edx,%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jge    L35
  addl   $0x1,-0x2c(%rbp)
  jmp    L70
L35:
  mov    -0x14(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jle    L98
  subl   $0x1,-0x30(%rbp)
  jmp    L70
L98:
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    0x18(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,0x18(%rbp)
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    0x10(%rbp),%rax
  add    %rax,%rdx
  mov    (%rcx),%eax
  mov    %eax,(%rdx)
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    0x18(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,0x18(%rbp)
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    0x10(%rbp),%rax
  add    %rax,%rdx
  mov    (%rcx),%eax
  mov    %eax,(%rdx)
  mov    -0x38(%rbp),%eax
  cltq
  shl    $0x2,%eax
  mov    %eax,%edx
  mov    0x28(%rbp),%rax
  mov    (%rax),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    0x20(%rbp),%rax
  lea    (%rcx,%rax,1),%rbx
  mov    %edx,%edi
  call   <malloc@plt>
  mov    %rax,(%rbx)
  mov    -0x38(%rbp),%eax
  cltq
  shl    $0x2,%eax
  mov    %eax,%edx
  mov    0x28(%rbp),%rax
  mov    (%rax),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    0x20(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%rax
  mov    0x10(%rbp),%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    0x28(%rbp),%rax
  mov    (%rax),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    0x30(%rbp),%rax
  add    %rax,%rdx
  mov    -0x38(%rbp),%eax
  mov    %eax,(%rdx)
  mov    0x28(%rbp),%rax
  mov    (%rax),%eax
  lea    0x1(%rax),%edx
  mov    0x28(%rbp),%rax
  mov    %edx,(%rax)
  subl   $0x2,0x18(%rbp)
  nop
L132:
  addl   $0x1,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jge    L127
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x2c(%rbp),%eax
  cltq
  shl    $0x2,%rax
  lea    -0x4(%rax),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  je     L132
L127:
  nop
L109:
  subl   $0x1,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jle    L70
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x30(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  je     L109
L70:
  mov    -0x2c(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jl     L146
  jmp    L128
L25:
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  jmp    L42
L162:
  mov    -0x18(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jle    L105
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  lea    -0x4(%rax),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  je     L100
L105:
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    0x18(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    0x10(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rax),%eax
  mov    %eax,(%rdx)
  mov    0x18(%rbp),%eax
  lea    0x1(%rax),%edi
  mov    -0x3c(%rbp),%eax
  lea    -0x1(%rax),%r8d
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x34(%rbp),%eax
  sub    %edx,%eax
  mov    %eax,%ecx
  mov    -0x18(%rbp),%eax
  lea    0x1(%rax),%esi
  mov    -0x30(%rbp),%edx
  mov    -0x28(%rbp),%rax
  sub    $0x8,%rsp
  push   0x30(%rbp)
  push   0x28(%rbp)
  push   0x20(%rbp)
  push   %rdi
  push   0x10(%rbp)
  mov    %r8d,%r9d
  mov    $0x4,%r8d
  mov    %rax,%rdi
  call   <k_sum>
  add    $0x30,%rsp
  jmp    L108
L100:
  nop
L108:
  addl   $0x1,-0x18(%rbp)
L42:
  mov    -0x30(%rbp),%eax
  sub    -0x3c(%rbp),%eax
  add    $0x1,%eax
  cmp    %eax,-0x18(%rbp)
  jle    L162
L128:
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void k_sum(int *nums, int low, int high, int target, int total, int k, int *stack, int len, int **results, int *count, int *col_sizes) {
  int i;
  if (k == 2) {
    while (low < high) {
      int sum = nums[low] + nums[high];
      if (sum < target) {
        low++;
      } else if (sum > target) {
        high--;
      } else {
        stack[len++] = nums[low];
        stack[len++] = nums[high];
        results[*count] = malloc(total * sizeof(int));
        memcpy(results[*count], stack, total * sizeof(int));
        col_sizes[*count] = total;
        (*count)++;
        len -= 2;
        while (++low < high && nums[low] == nums[low - 1]) {
        }
        while (--high > low && nums[high] == nums[high + 1]) {
        }
      }
    }
  } else {
    for (i = low; i <= high - k + 1; i++) {
      if (i > low && nums[i] == nums[i - 1])
        continue;
      stack[len] = nums[i];
      k_sum(nums, i + 1, high, target - nums[i], 4, k - 1, stack, len + 1, results, count, col_sizes);
    }
  }
}
```