user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<solve>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %esi,-0x3c(%rbp)
  mov    %edx,-0x40(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  mov    %eax,%edx
  mov    -0x40(%rbp),%eax
  cltq
  imul   %edx,%eax
  shl    $0x2,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  mov    %eax,%edx
  mov    -0x40(%rbp),%eax
  cltq
  imul   %edx,%eax
  shl    $0x2,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  movl   $0xffffffff,-0x2c(%rbp)
  movl   $0x0,-0x28(%rbp)
  jmp    L246
L38:
  movl   $0x0,-0x24(%rbp)
  jmp    L107
L130:
  cmpl   $0x0,-0x28(%rbp)
  je     L134
  cmpl   $0x0,-0x24(%rbp)
  je     L134
  mov    -0x3c(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x28(%rbp)
  je     L134
  mov    -0x40(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x24(%rbp)
  jne    L225
L134:
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x24(%rbp),%eax
  cltq
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x4f,%al
  jne    L225
  addl   $0x1,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rax,%rdx
  mov    -0x28(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0x24(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x24(%rbp),%eax
  cltq
  add    %rdx,%rax
  movb   $0x61,(%rax)
L225:
  addl   $0x1,-0x24(%rbp)
L107:
  mov    -0x24(%rbp),%eax
  cmp    -0x40(%rbp),%eax
  jl     L130
  addl   $0x1,-0x28(%rbp)
L246:
  mov    -0x28(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L38
  jmp    L174
L104:
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x2c(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x2c(%rbp)
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x18(%rbp),%eax
  add    $0x1,%eax
  cmp    %eax,-0x3c(%rbp)
  jle    L72
  mov    -0x18(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x4f,%al
  jne    L72
  mov    -0x18(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  add    %rdx,%rax
  movb   $0x61,(%rax)
  addl   $0x1,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    -0x18(%rbp),%edx
  add    $0x1,%edx
  mov    %edx,(%rax)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0x14(%rbp),%eax
  mov    %eax,(%rdx)
L72:
  mov    -0x14(%rbp),%eax
  add    $0x1,%eax
  cmp    %eax,-0x40(%rbp)
  jle    L149
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  add    $0x1,%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x4f,%al
  jne    L149
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  add    $0x1,%rax
  add    %rdx,%rax
  movb   $0x61,(%rax)
  addl   $0x1,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rax,%rdx
  mov    -0x18(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    -0x14(%rbp),%edx
  add    $0x1,%edx
  mov    %edx,(%rax)
L149:
  cmpl   $0x0,-0x18(%rbp)
  jle    L66
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x4f,%al
  jne    L66
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  add    %rdx,%rax
  movb   $0x61,(%rax)
  addl   $0x1,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    -0x18(%rbp),%edx
  sub    $0x1,%edx
  mov    %edx,(%rax)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x8(%rbp),%rax
  add    %rax,%rdx
  mov    -0x14(%rbp),%eax
  mov    %eax,(%rdx)
L66:
  cmpl   $0x0,-0x14(%rbp)
  jle    L174
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  sub    $0x1,%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x4f,%al
  jne    L174
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  sub    $0x1,%rax
  add    %rdx,%rax
  movb   $0x61,(%rax)
  addl   $0x1,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rax,%rdx
  mov    -0x18(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    -0x14(%rbp),%edx
  sub    $0x1,%edx
  mov    %edx,(%rax)
L174:
  cmpl   $0x0,-0x2c(%rbp)
  jns    L104
  movl   $0x0,-0x20(%rbp)
  jmp    L20
L11:
  movl   $0x0,-0x1c(%rbp)
  jmp    L244
L35:
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x1c(%rbp),%eax
  cltq
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x61,%al
  jne    L156
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x1c(%rbp),%eax
  cltq
  add    %rdx,%rax
  movb   $0x4f,(%rax)
  jmp    L106
L156:
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x1c(%rbp),%eax
  cltq
  add    %rdx,%rax
  movb   $0x58,(%rax)
L106:
  addl   $0x1,-0x1c(%rbp)
L244:
  mov    -0x1c(%rbp),%eax
  cmp    -0x40(%rbp),%eax
  jl     L35
  addl   $0x1,-0x20(%rbp)
L20:
  mov    -0x20(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L11
  nop
  nop
  leave
  ret
```

assistant: ```c
void solve(char **board, int rSize, int cSize) {
  int *rStack = (int *)malloc(sizeof(int) * rSize * cSize);
  int *cStack = (int *)malloc(sizeof(int) * rSize * cSize);
  int top = -1;
  for (int i = 0; i < rSize; i++)
    for (int j = 0; j < cSize; j++) {
      if (i == 0 || j == 0 || i == rSize - 1 || j == cSize - 1) {
        if (board[i][j] == 'O') {
          rStack[++top] = i;
          cStack[top] = j;
          board[i][j] = 'a';
        }
      }
    }
  while (top > -1) {
    int r = rStack[top], c = cStack[top--];
    if (r + 1 < rSize && board[r + 1][c] == 'O') {
      board[r + 1][c] = 'a';
      rStack[++top] = r + 1;
      cStack[top] = c;
    }
    if (c + 1 < cSize && board[r][c + 1] == 'O') {
      board[r][c + 1] = 'a';
      rStack[++top] = r;
      cStack[top] = c + 1;
    }
    if (r - 1 > -1 && board[r - 1][c] == 'O') {
      board[r - 1][c] = 'a';
      rStack[++top] = r - 1;
      cStack[top] = c;
    }
    if (c - 1 > -1 && board[r][c - 1] == 'O') {
      board[r][c - 1] = 'a';
      rStack[++top] = r;
      cStack[top] = c - 1;
    }
  }
  for (int i = 0; i < rSize; i++) {
    for (int j = 0; j < cSize; j++) {
      if (board[i][j] == 'a')
        board[i][j] = 'O';
      else
        board[i][j] = 'X';
    }
  }
}
```