user: 这段汇编代码用C语言表示是什么样的?

```asm
<least_square>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x68,%rsp
  mov    %edi,-0x44(%rbp)
  mov    %esi,-0x48(%rbp)
  mov    %rdx,%r14
  mov    %rcx,-0x88(%rbp)
  mov    %r8,-0x90(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  lea    0x1(%rsi),%eax
  mov    %eax,-0x6c(%rbp)
  imul   %eax,%eax
  cltq
  lea    0xf(,%rax,8),%rdx
  mov    %rdx,%rax
  and    $0xfffffffffffffff0,%rax
  and    $0xfffffffffffff000,%rdx
  mov    %rsp,%rcx
  sub    %rdx,%rcx
L100:
  cmp    %rcx,%rsp
  je     L48
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L100
L48:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  je     L186
  orq    $0x0,-0x8(%rsp,%rdx,1)
L186:
  mov    %rsp,-0x78(%rbp)
  movslq -0x6c(%rbp),%rax
  lea    0xf(,%rax,8),%rdx
  mov    %rdx,%rax
  and    $0xfffffffffffffff0,%rax
  and    $0xfffffffffffff000,%rdx
  mov    %rsp,%rcx
  sub    %rdx,%rcx
L35:
  cmp    %rcx,%rsp
  je     L83
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L35
L83:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  je     L158
  orq    $0x0,-0x8(%rsp,%rdx,1)
L158:
  mov    %rsp,-0x80(%rbp)
  movslq -0x44(%rbp),%rax
  lea    0xf(,%rax,8),%rdx
  mov    %rdx,%rax
  and    $0xfffffffffffffff0,%rax
  and    $0xfffffffffffff000,%rdx
  mov    %rsp,%rcx
  sub    %rdx,%rcx
L133:
  cmp    %rcx,%rsp
  je     L94
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L133
L94:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  je     L146
  orq    $0x0,-0x8(%rsp,%rdx,1)
L146:
  mov    %rsp,%r13
  cmpl   $0x0,-0x48(%rbp)
  js     L152
  movl   $0x0,-0x64(%rbp)
  movq   $0x0,-0x60(%rbp)
  mov    -0x44(%rbp),%r15d
  jmp    L60
L116:
  movsd  (%r14,%rbx,8),%xmm0
  mov    %r12d,%edi
  call   <pow@plt>
  movsd  %xmm0,0x0(%r13,%rbx,8)
  add    $0x1,%rbx
  cmp    %r15,%rbx
  jne    L116
L20:
  mov    -0x44(%rbp),%esi
  mov    %r13,%rdi
  call   <get_sum@plt>
  mov    -0x58(%rbp),%rcx
  mov    -0x50(%rbp),%rax
  movsd  %xmm0,(%rcx,%rax,8)
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  add    $0x1,%r12d
  cmp    %eax,-0x48(%rbp)
  jl     L66
L149:
  mov    $0x0,%ebx
  cmpl   $0x0,-0x44(%rbp)
  jg     L116
  jmp    L20
L66:
  cmpl   $0x0,-0x44(%rbp)
  jle    L96
  mov    $0x0,%ebx
  mov    -0x68(%rbp),%r12d
L157:
  movsd  (%r14,%rbx,8),%xmm0
  mov    %r12d,%edi
  call   <pow@plt>
  movsd  %xmm0,0x0(%r13,%rbx,8)
  add    $0x1,%rbx
  cmp    %rbx,%r15
  jne    L157
L96:
  mov    -0x44(%rbp),%edx
  mov    %r13,%rsi
  mov    -0x88(%rbp),%rdi
  call   <get_crossed_sum@plt>
  mov    -0x80(%rbp),%rsi
  mov    -0x60(%rbp),%rax
  movsd  %xmm0,(%rsi,%rax,8)
  add    $0x1,%rax
  mov    %rax,-0x60(%rbp)
  mov    -0x6c(%rbp),%ecx
  add    %ecx,-0x64(%rbp)
  cmp    %eax,-0x48(%rbp)
  jl     L152
L60:
  mov    -0x60(%rbp),%rax
  mov    %eax,%r12d
  mov    %eax,-0x68(%rbp)
  movslq -0x64(%rbp),%rax
  mov    -0x78(%rbp),%rsi
  lea    (%rsi,%rax,8),%rax
  mov    %rax,-0x58(%rbp)
  movq   $0x0,-0x50(%rbp)
  jmp    L149
L152:
  mov    -0x90(%rbp),%rcx
  mov    -0x80(%rbp),%rdx
  mov    -0x78(%rbp),%rsi
  mov    -0x6c(%rbp),%edi
  call   <gauss_jordan_iteration@plt>
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L11
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L11:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void least_square(uint32_t plot_num, uint32_t order, double x[], double y[], double a[]) {
  double c[(order + 1) * (order + 1)];
  double d[order + 1];
  double temp[plot_num];
  uint32_t i = 0;
  uint32_t j = 0;
  uint32_t k = 0;
  for (k = 0; k <= order; k++) {
    for (j = 0; j <= order; j++) {
      for (i = 0; i < plot_num; i++)
        temp[i] = pow(x[i], k + j);
      c[k * (order + 1) + j] = get_sum(temp, plot_num);
    }
    for (i = 0; i < plot_num; i++)
      temp[i] = pow(x[i], k);
    d[k] = get_crossed_sum(y, temp, plot_num);
  }
  gauss_jordan_iteration(order + 1, c, d, a);
}
```