user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<main>:
  endbr64
  push   %r14
  xor    %eax,%eax
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  call   <getchar@plt>
  mov    D3(%rip),%r13
  cmp    0x0(%r13),%al
  je     L253
  mov    %eax,%ebx
  xor    %r12d,%r12d
L360:
  xor    %eax,%eax
  call   <getchar@plt>
  mov    %eax,%ebp
  test   %r12d,%r12d
  jne    L173
L0:
  cmp    $0x2f,%bl
  je     L207
  cmp    $0x22,%bl
  je     L233
  cmp    $0x27,%bl
  jne    L129
  mov    $0x27,%edi
  call   <putchar@plt>
  cmp    %bpl,0x0(%r13)
  je     L253
  xor    %eax,%eax
  call   <getchar@plt>
  mov    %eax,%r14d
L120:
  movsbl %bpl,%edi
  call   <putchar@plt>
  cmp    $0x5c,%bpl
  jne    L389
  cmp    %r14b,0x0(%r13)
  je     L253
  xor    %eax,%eax
  mov    $0x7,%r12d
  call   <getchar@plt>
  mov    %eax,%ebx
  jmp    L26
  nopl   0x0(%rax)
L207:
  cmp    $0x2a,%bpl
  je     L130
  cmp    $0x2f,%bpl
  je     L68
L129:
  movsbl %bl,%edi
  call   <putchar@plt>
  cmp    %bpl,0x0(%r13)
  je     L253
L417:
  xor    %eax,%eax
  mov    %ebp,%ebx
  call   <getchar@plt>
  mov    %eax,%ebp
  jmp    L0
L68:
  cmpb   $0x2f,0x0(%r13)
  je     L253
  xor    %eax,%eax
  mov    $0x3,%r12d
  call   <getchar@plt>
  mov    %eax,%ebx
L170:
  cmp    %bl,0x0(%r13)
  jne    L360
L253:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L233:
  mov    $0x22,%edi
  call   <putchar@plt>
  cmp    %bpl,0x0(%r13)
  je     L253
L226:
  xor    %eax,%eax
  mov    %ebp,%ebx
  call   <getchar@plt>
  mov    %eax,%ebp
L21:
  movsbl %bl,%edi
  call   <putchar@plt>
  cmp    $0x5c,%bl
  je     L397
  movzbl 0x0(%r13),%eax
  cmp    $0x22,%bl
  je     L64
  cmp    %al,%bpl
  jne    L226
  jmp    L253
L389:
  movzbl 0x0(%r13),%eax
  cmp    $0x27,%bpl
  je     L322
  cmp    %r14b,%al
  je     L253
  xor    %eax,%eax
  mov    %r14d,%ebp
  call   <getchar@plt>
  mov    %eax,%r14d
  jmp    L120
L173:
  cmp    $0x5,%r12d
  je     L21
  cmp    $0x4,%r12d
  je     L476
  mov    %ebx,%r14d
  mov    %eax,%ebx
L26:
  cmp    $0x1,%r12d
  sete   %dl
  cmp    $0x2a,%r14b
  sete   %al
  test   %al,%dl
  je     L357
  cmp    $0x2f,%bl
  je     L332
L357:
  cmp    $0x2,%r12d
  je     L190
  cmp    $0xa,%r14b
  jne    L454
  cmp    $0x3,%r12d
  je     L190
L454:
  cmp    $0x6,%r12d
  je     L432
  cmp    $0x7,%r12d
  jne    L170
  movsbl %r14b,%edi
  call   <putchar@plt>
  cmp    0x0(%r13),%bl
  je     L253
  xor    %eax,%eax
  mov    %ebx,%ebp
  call   <getchar@plt>
  mov    %eax,%r14d
  jmp    L120
L397:
  cmp    0x0(%r13),%bpl
  je     L253
  xor    %eax,%eax
  mov    %ebp,%r14d
  call   <getchar@plt>
  mov    %eax,%ebx
L432:
  movsbl %r14b,%edi
  call   <putchar@plt>
  cmp    0x0(%r13),%bl
  je     L253
  xor    %eax,%eax
  call   <getchar@plt>
  mov    %eax,%ebp
  jmp    L21
  nopl   (%rax)
L190:
  cmp    0x0(%r13),%bl
  je     L253
  xor    %eax,%eax
  call   <getchar@plt>
  mov    %eax,%ebp
  jmp    L0
L130:
  cmpb   $0x2a,0x0(%r13)
  je     L253
  xor    %eax,%eax
  mov    $0x2a,%r14d
  mov    $0x1,%r12d
  call   <getchar@plt>
  mov    %eax,%ebx
  jmp    L26
L64:
  cmp    %al,%bpl
  jne    L417
  jmp    L253
L322:
  cmp    %r14b,%al
  je     L253
  xor    %eax,%eax
  mov    %r14d,%ebx
  call   <getchar@plt>
  mov    %eax,%ebp
  jmp    L0
L332:
  cmpb   $0x2f,0x0(%r13)
  je     L253
  xor    %eax,%eax
  mov    $0x2f,%r14d
  mov    $0x2,%r12d
  call   <getchar@plt>
  mov    %eax,%ebx
  jmp    L26
L476:
  mov    %ebp,%r14d
  mov    %ebx,%ebp
  jmp    L120
```

assistant: ```c
int main() {
  char buf[2];
  int state;
  state = 0;
  buf[1] = getchar();
  while ((buf[0] = buf[1]) != EOF) {
    buf[1] = getchar();
    if (state == 0) {
      if (buf[0] == '/' && buf[1] == '*') {
        state = 1;
      } else if (buf[0] == '/' && buf[1] == '/') {
        state = 3;
      } else if (buf[0] == '"') {
        state = 5;
        putchar(buf[0]);
      } else if (buf[0] == '\'') {
        state = 4;
        putchar(buf[0]);
      } else {
        putchar(buf[0]);
      }
    } else if (state == 5) {
      putchar(buf[0]);
      if (buf[0] == '\\')
        state = 6;
      else if (buf[0] == '"')
        state = 0;
    } else if (state == 4) {
      putchar(buf[0]);
      if (buf[0] == '\\')
        state = 7;
      else if (buf[0] == '\'')
        state = 0;
    } else if (state == 1 && buf[0] == '*' && buf[1] == '/') {
      state = 2;
    } else if (state == 2) {
      state = 0;
    } else if (state == 3 && buf[0] == '\n') {
      state = 0;
    } else if (state == 6) {
      state = 5;
      putchar(buf[0]);
    } else if (state == 7) {
      state = 4;
      putchar(buf[0]);
    }
  }
}
```