user: Demonstrate the C code that generates the assembly output below:

```asm
<create_triangle>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %edi,-0x44(%rbp)
  cmpl   $0x0,-0x44(%rbp)
  jns    L72
  mov    $0x0,%eax
  jmp    L96
L72:
  cmpl   $0x0,-0x44(%rbp)
  jne    L56
  mov    $0x8,%edi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  mov    $0x8,%edi
  call   <malloc@plt>
  mov    -0x18(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x18(%rbp),%rax
  mov    (%rax),%rax
  movq   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  jmp    L96
L56:
  mov    -0x44(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x20(%rbp)
  movl   $0x0,-0x38(%rbp)
  jmp    L124
L166:
  mov    -0x44(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edx
  mov    -0x38(%rbp),%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)
  addl   $0x1,-0x38(%rbp)
L124:
  mov    -0x38(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L166
  movl   $0x0,-0x34(%rbp)
  jmp    L112
L33:
  movl   $0x0,-0x30(%rbp)
  jmp    L153
L81:
  mov    -0x34(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x30(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rdx,%rax
  movq   $0x0,(%rax)
  addl   $0x1,-0x30(%rbp)
L153:
  mov    -0x30(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L81
  addl   $0x1,-0x34(%rbp)
L112:
  mov    -0x34(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L33
  movl   $0x1,-0x2c(%rbp)
  movl   $0x0,-0x28(%rbp)
  jmp    L84
L142:
  movl   $0x0,-0x24(%rbp)
  jmp    L163
L73:
  cmpl   $0x0,-0x24(%rbp)
  je     L63
  cmpl   $0x0,-0x28(%rbp)
  jne    L22
L63:
  movl   $0x1,-0x2c(%rbp)
  jmp    L137
L22:
  mov    -0x28(%rbp),%eax
  sub    -0x24(%rbp),%eax
  add    $0x1,%eax
  imul   -0x2c(%rbp),%eax
  cltd
  idivl  -0x24(%rbp)
  mov    %eax,-0x2c(%rbp)
L137:
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x24(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rax,%rdx
  mov    -0x2c(%rbp),%eax
  cltq
  mov    %rax,(%rdx)
  addl   $0x1,-0x24(%rbp)
L163:
  mov    -0x28(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jge    L73
  addl   $0x1,-0x28(%rbp)
L84:
  mov    -0x28(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L142
  mov    -0x20(%rbp),%rax
L96:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
size_t **create_triangle(int rows) {
  if (rows < 0)
    return NULL;
  if (rows == 0) {
    size_t **result = malloc(sizeof(size_t *));
    result[0] = malloc(sizeof(size_t));
    result[0][0] = 0;
    return result;
  }
  size_t **result = malloc(rows * sizeof(size_t *));
  for (int i = 0; i < rows; ++i)
    result[i] = malloc(rows * sizeof(size_t));
  for (int i = 0; i < rows; ++i) {
    for (int j = 0; j < rows; ++j)
      result[i][j] = 0;
  }
  int coef = 1;
  for (int i = 0; i < rows; ++i) {
    for (int j = 0; j < i + 1; ++j) {
      if (j == 0 || i == 0)
        coef = 1;
      else
        coef = coef * (i - j + 1) / j;
      result[i][j] = coef;
    }
  }
  return result;
}
```