user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  lea    D57(%rip),%rsi
  lea    D56(%rip),%rdi
  call   <fopen@plt>
  test   %rax,%rax
  je     L36
  mov    %rax,%r12
  mov    %rax,%rdi
  call   <getSizeOfDenominations@plt>
  test   %eax,%eax
  je     L100
  mov    %r12,%rdi
  call   <getSizeOfDenominations@plt>
  cltq
  lea    0xf(,%rax,4),%rdx
  mov    %rdx,%rsi
  and    $0xfffffffffffffff0,%rsi
  and    $0xfffffffffffff000,%rdx
  mov    %rsp,%rcx
  sub    %rdx,%rcx
L120:
  cmp    %rcx,%rsp
  je     L28
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L120
L36:
  lea    D28(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%eax
  jmp    L128
L100:
  lea    D36(%rip),%rdi
  call   <puts@plt>
  mov    $0x2,%eax
  jmp    L128
L28:
  mov    %rsi,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  je     L12
  orq    $0x0,-0x8(%rsp,%rdx,1)
L12:
  mov    %rsp,%r15
  movabs $0x3fffffffffffffff,%rdx
  and    %rdx,%rax
  mov    %rax,-0x58(%rbp)
  je     L106
  mov    %r15,%rbx
  lea    (%r15,%rax,4),%r14
  lea    D13(%rip),%r13
L3:
  mov    %rbx,%rdx
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <fscanf@plt>
  add    $0x4,%rbx
  cmp    %r14,%rbx
  jne    L3
L106:
  mov    %r12,%rdi
  call   <fclose@plt>
  movl   $0x0,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  movl   $0x0,-0x40(%rbp)
  movl   $0x0,-0x3c(%rbp)
  lea    -0x40(%rbp),%rcx
  lea    -0x48(%rbp),%rsi
  lea    -0x44(%rbp),%rdx
  lea    -0x3c(%rbp),%r8
  lea    D42(%rip),%rdi
  call   <scanf@plt>
  imul   $0x64,-0x48(%rbp),%eax
  sub    -0x3c(%rbp),%eax
  add    -0x44(%rbp),%eax
  imul   $0x64,-0x40(%rbp),%edx
  sub    %edx,%eax
  mov    %eax,-0x4c(%rbp)
  mov    -0x58(%rbp),%rax
  test   %rax,%rax
  je     L47
  mov    %r15,%rbx
  lea    (%r15,%rax,4),%r13
  lea    -0x4c(%rbp),%r12
L93:
  mov    (%rbx),%esi
  mov    %r12,%rdi
  call   <calculateChange@plt>
  add    $0x4,%rbx
  cmp    %r13,%rbx
  jne    L93
L47:
  mov    -0x4c(%rbp),%esi
  mov    $0x0,%eax
  test   %esi,%esi
  jne    L42
L128:
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L126
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L42:
  mov    $0x64,%ecx
  mov    %esi,%eax
  mov    $0x0,%edx
  div    %ecx
  mov    %eax,%esi
  lea    D3(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L128
L126:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D57
datatype: string
name: extract_symbolic_data
arguments: data_label: D56
datatype: string
name: extract_symbolic_data
arguments: data_label: D28
datatype: string
name: extract_symbolic_data
arguments: data_label: D36
datatype: string
name: extract_symbolic_data
arguments: data_label: D13
datatype: string
name: extract_symbolic_data
arguments: data_label: D42
datatype: string
name: extract_symbolic_data
arguments: data_label: D3
datatype: string

tool: D57: r

tool: D56: denominations.txt

tool: D28: ./denominations.txt either does not exist or can't be opened.

tool: D36: ./denominations.txt was empty.

tool: D13: %u

tool: D42: %u.%u %u.%u

tool: D3: The change wasn't completely divisible by the denominations set.
Your total change left over is $%u.%02u


assistant: ```c
int main(void) {
  FILE *myFiles;
  myFiles = fopen("denominations.txt", "r");
  if (myFiles == NULL) {
    printf("./denominations.txt either does not exist or can't be opened.\n");
    return 1;
  }
  if (getSizeOfDenominations(myFiles) == 0) {
    printf("./denominations.txt was empty.\n");
    return 2;
  }
  unsigned int denominations[getSizeOfDenominations(myFiles)];
  for (size_t i = 0; i < sizeof(denominations) / sizeof(*denominations); ++i) {
    fscanf(myFiles, "%u", &denominations[i]);
  }
  fclose(myFiles);
  unsigned int tender[2] = {0, 0};
  unsigned int bill[2] = {0, 0};
  scanf("%u.%u %u.%u", &tender[0], &tender[1], &bill[0], &bill[1]);
  unsigned int change = (((tender[0] * 100) + tender[1]) - ((bill[0] * 100) + bill[1]));
  for (size_t i = 0; i < sizeof(denominations) / sizeof(*denominations); ++i) {
    calculateChange(&change, denominations[i]);
  }
  if (change > 0) {
    printf("The change wasn't completely divisible by the denominations set.\n"
           "Your total change left over is $%u.%02u\n",
           change / 100, change % 100);
  }
  return 0;
}
```