user: 这段汇编代码用C语言表示是什么样的：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  movl   $0x3,-0x18(%rbp)
  movl   $0x2,-0x14(%rbp)
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x3,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x18(%rbp),%eax
  imul   -0x14(%rbp),%eax
  cltq
  shl    $0x2,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,%rdx
  mov    -0x10(%rbp),%rax
  mov    %rdx,(%rax)
  movl   $0x1,-0x34(%rbp)
  jmp    L39
L8:
  mov    -0x34(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x34(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rsi
  mov    -0x10(%rbp),%rax
  add    %rsi,%rax
  add    %rcx,%rdx
  mov    %rdx,(%rax)
  addl   $0x1,-0x34(%rbp)
L39:
  mov    -0x34(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jl     L8
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x3,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%eax
  imul   -0x14(%rbp),%eax
  cltq
  shl    $0x2,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,(%rax)
  movl   $0x1,-0x30(%rbp)
  jmp    L58
L117:
  mov    -0x30(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rsi
  mov    -0x8(%rbp),%rax
  add    %rsi,%rax
  add    %rcx,%rdx
  mov    %rdx,(%rax)
  addl   $0x1,-0x30(%rbp)
L58:
  mov    -0x30(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jl     L117
  movl   $0x0,-0x2c(%rbp)
  movl   $0x0,-0x28(%rbp)
  jmp    L129
L134:
  movl   $0x0,-0x24(%rbp)
  jmp    L131
L74:
  mov    -0x2c(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x2c(%rbp)
  mov    -0x28(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,8),%rcx
  mov    -0x10(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rdx),%rcx
  mov    -0x24(%rbp),%edx
  movslq %edx,%rdx
  shl    $0x2,%rdx
  add    %rcx,%rdx
  mov    %eax,(%rdx)
  addl   $0x1,-0x24(%rbp)
L131:
  mov    -0x24(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L74
  addl   $0x1,-0x28(%rbp)
L129:
  mov    -0x28(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jl     L134
  movl   $0x0,-0x20(%rbp)
  jmp    L0
L113:
  movl   $0x0,-0x1c(%rbp)
  jmp    L122
L127:
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x1c(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    -0x20(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,8),%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rdx),%rcx
  mov    -0x1c(%rbp),%edx
  movslq %edx,%rdx
  shl    $0x2,%rdx
  add    %rcx,%rdx
  mov    (%rax),%eax
  mov    %eax,(%rdx)
  addl   $0x1,-0x1c(%rbp)
L122:
  mov    -0x1c(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L127
  addl   $0x1,-0x20(%rbp)
L0:
  mov    -0x20(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jl     L113
  mov    -0x14(%rbp),%edx
  mov    -0x18(%rbp),%ecx
  mov    -0x10(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printArray@plt>
  mov    -0x14(%rbp),%edx
  mov    -0x18(%rbp),%ecx
  mov    -0x8(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printArray@plt>
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  test   %rax,%rax
  je     L66
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <free@plt>
L66:
  cmpq   $0x0,-0x10(%rbp)
  je     L130
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L130:
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  test   %rax,%rax
  je     L41
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <free@plt>
L41:
  cmpq   $0x0,-0x8(%rbp)
  je     L142
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L142:
  mov    $0x0,%eax
  leave
  ret
```

assistant: ```c
int main() {
  int nRows = 3;
  int nCols = 2;
  int **a = malloc(nRows * sizeof(void *));
  a[0] = malloc(nRows * nCols * sizeof(int));
  for (int i = 1; i < nRows; i++)
    a[i] = a[i - 1] + nCols;
  int **b = malloc(nRows * sizeof(void *));
  b[0] = malloc(nRows * nCols * sizeof(int));
  for (int i = 1; i < nRows; i++)
    b[i] = b[i - 1] + nCols;
  int n = 0;
  for (int i = 0; i < nRows; i++)
    for (int j = 0; j < nCols; j++)
      a[i][j] = n++;
  for (int i = 0; i < nRows; i++) {
    for (int j = 0; j < nCols; j++) {
      b[i][j] = a[i][j];
    }
  }
  printArray(a, nRows, nCols);
  printArray(b, nRows, nCols);
  if (a[0])
    free(a[0]);
  if (a)
    free(a);
  if (b[0])
    free(b[0]);
  if (b)
    free(b);
  return 0;
}
```