user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  push   %r15
  lea    D9(%rip),%rdi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  xor    %eax,%eax
  lea    0x24(%rsp),%rsi
  movq   $0x0,0x30(%rsp)
  movl   $0x3f800000,0x28(%rsp)
  movl   $0x0,0x2c(%rsp)
  call   <scanf@plt>
  mov    0x24(%rsp),%eax
  lea    0x0(,%rax,4),%edi
  call   <check_malloc@plt>
  mov    %rax,0x18(%rsp)
  mov    %rax,%rbx
  mov    0x24(%rsp),%eax
  lea    0x0(,%rax,4),%edi
  call   <check_malloc@plt>
  mov    0x24(%rsp),%edx
  test   %edx,%edx
  jle    L18
  mov    %rbx,%rsi
  movl   $0x0,0x4(%rsp)
  mov    %rbx,%r14
  xor    %ecx,%ecx
  sub    %rsi,%rax
  lea    0x30(%rsp),%r12
  lea    0x2c(%rsp),%rbp
  mov    %rbx,%r15
  mov    %rax,%r13
  lea    0x28(%rsp),%rbx
  nopl   0x0(%rax,%rax,1)
L56:
  mov    %r12,%rdx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  mov    %ecx,0x14(%rsp)
  call   <gaussian_rand@plt>
  mov    %r12,%rdx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  movss  %xmm0,(%r15)
  add    $0x4,%r15
  call   <gaussian_rand@plt>
  movss  0x8(%rsp),%xmm5
  movss  0x10(%rsp),%xmm6
  movss  %xmm0,-0x4(%r15,%r13,1)
  mov    0x14(%rsp),%ecx
  mov    0x24(%rsp),%edx
  movss  -0x4(%r15),%xmm1
  addss  %xmm0,%xmm6
  mulss  %xmm0,%xmm0
  add    $0x1,%ecx
  addss  %xmm1,%xmm5
  mulss  %xmm1,%xmm1
  movss  %xmm6,0x10(%rsp)
  movss  %xmm5,0x8(%rsp)
  addss  %xmm0,%xmm1
  addss  0x4(%rsp),%xmm1
  movss  %xmm1,0x4(%rsp)
  cmp    %ecx,%edx
  jg     L56
  pxor   %xmm0,%xmm0
  movaps %xmm5,%xmm4
  movaps %xmm6,%xmm3
  cvtsi2ss %edx,%xmm0
  divss  %xmm0,%xmm4
  divss  %xmm0,%xmm3
  test   %edx,%edx
  jle    L51
  mov    0x18(%rsp),%rax
  mov    %edx,%ecx
  pxor   %xmm2,%xmm2
  movaps %xmm2,%xmm0
  lea    (%rax,%rcx,4),%rcx
  nopl   (%rax)
L64:
  movss  (%r14),%xmm1
  add    $0x4,%r14
  subss  %xmm4,%xmm1
  mulss  %xmm1,%xmm1
  addss  %xmm1,%xmm0
  movss  -0x4(%r14,%r13,1),%xmm1
  subss  %xmm3,%xmm1
  mulss  %xmm1,%xmm1
  addss  %xmm1,%xmm2
  cmp    %r14,%rcx
  jne    L64
L61:
  sub    $0x1,%edx
  pxor   %xmm1,%xmm1
  movss  %xmm3,0x10(%rsp)
  cvtsi2ss %edx,%xmm1
  movss  %xmm4,0x14(%rsp)
  movss  %xmm2,0x18(%rsp)
  divss  %xmm1,%xmm0
  call   <sqrt@plt>
  mov    0x24(%rsp),%eax
  movss  0x18(%rsp),%xmm2
  movsd  %xmm0,0x8(%rsp)
  pxor   %xmm0,%xmm0
  sub    $0x1,%eax
  cvtsi2ss %eax,%xmm0
  divss  %xmm0,%xmm2
  movaps %xmm2,%xmm0
  call   <sqrt@plt>
  movss  0x14(%rsp),%xmm4
  movsd  0x8(%rsp),%xmm1
  lea    D21(%rip),%rdi
  movq   %xmm0,%rbx
  mov    $0x2,%eax
  pxor   %xmm0,%xmm0
  cvtss2sd %xmm4,%xmm0
  cvtsd2ss %xmm1,%xmm1
  cvtss2sd %xmm1,%xmm1
  call   <printf@plt>
  movq   %rbx,%xmm3
  pxor   %xmm1,%xmm1
  lea    D1(%rip),%rdi
  mov    $0x2,%eax
  cvtsd2ss %xmm3,%xmm1
  movss  0x10(%rsp),%xmm3
  pxor   %xmm0,%xmm0
  cvtss2sd %xmm1,%xmm1
  cvtss2sd %xmm3,%xmm0
  call   <printf@plt>
  pxor   %xmm1,%xmm1
  movss  0x4(%rsp),%xmm0
  cvtsi2ssl 0x24(%rsp),%xmm1
  divss  %xmm1,%xmm0
  call   <sqrt@plt>
  lea    D7(%rip),%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  mov    0x38(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L48
  add    $0x48,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L18:
  pxor   %xmm0,%xmm0
  pxor   %xmm4,%xmm4
  cvtsi2ss %edx,%xmm0
  divss  %xmm0,%xmm4
  pxor   %xmm0,%xmm0
  movss  %xmm0,0x4(%rsp)
  movaps %xmm0,%xmm2
  movaps %xmm4,%xmm3
  jmp    L61
L51:
  pxor   %xmm2,%xmm2
  movaps %xmm2,%xmm0
  jmp    L61
L48:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D9
data_type: string
name: extract_symbolic_data
arguments: tag: D21
data_type: string
name: extract_symbolic_data
arguments: tag: D1
data_type: string
name: extract_symbolic_data
arguments: tag: D7
data_type: string

tool: D9: %d

tool: D21: rmean= %f, rsig= %f


tool: D1: imean= %f, isig= %f


tool: D7: avg. amp= %f


assistant: ```c
main(int ac, char **av) {
  float *real, *imag, amp;
  float rmean, imean, rsig, isig;
  int i, n;
  long seed = 0;
  float fsigma = 1.0;
  float fmean = 0.0;
  scanf("%d", &n);
  real = (float *)check_malloc(n * sizeof(float));
  imag = (float *)check_malloc(n * sizeof(float));
  amp = 0.0;
  for (i = 0; i < n; i++) {
    real[i] = gaussian_rand(&fsigma, &fmean, &seed);
    imag[i] = gaussian_rand(&fsigma, &fmean, &seed);
    rmean = rmean + real[i];
    imean = imean + imag[i];
    amp = amp + (real[i] * real[i] + imag[i] * imag[i]);
  }
  rmean = rmean / (float)(n);
  imean = imean / (float)(n);
  rsig = 0.0;
  isig = 0.0;
  for (i = 0; i < n; i++) {
    rsig = rsig + (real[i] - rmean) * (real[i] - rmean);
    isig = isig + (imag[i] - imean) * (imag[i] - imean);
  }
  rsig = sqrt(rsig / (float)(n - 1));
  isig = sqrt(isig / (float)(n - 1));
  printf("rmean= %f, rsig= %f\n", rmean, rsig);
  printf("imean= %f, isig= %f\n", imean, isig);
  printf("avg. amp= %f\n", sqrt(amp / (float)(n)));
}
```