求助

P1957口算练习题

• 本人代码如下

  #include <iostream>
  #include <cstring>
  #include <string>
  #include <cstdio>
  using namespace std;
  int le(int a)
  {
  
  int p = 0;
  if (a < 0)
  {
      p++;
      a = -a;
  }
  if (a == 0)
  {
      return 1;
  }
  while (a)
  {
      a /= 10;
      p++;
  }
  return p;
  } // 返回一个数字的位数
  int main()
  {
  char cmd[1000][100] = {};
  int p = 0, n = 0;
  cin >> n; // p用于存储上一个指令类型,123依次对应abc,+-*；
  cin.get();
  int turn = 0;
  for (int l = 0; l < n; l++)
  {
  
      cin.getline(cmd[l], 1000);
  }
  for (int l = 0; l < n; l++)
  {
      int i = 0, j = 0;
      char fu;
      int s1 = 0, s2 = 0, s3 = 0;
      int a = 0, b = 0, sum = 0; // 存储三项数据
      int len = strlen(cmd[l]);
      if (cmd[l][0] == 'a' || cmd[l][0] == 'b' || cmd[l][0] == 'c')
          turn = 2;
      else
          turn = 1; // 判断指令的种类
      if (turn == 1)
      {
          for (i = 0; i < len; i++)
          {
              if (cmd[l][i] == ' ')
                  break;
              a = a * 10 + cmd[l][i] - '0';
          }
          j = i;
          for (j = i + 1; j < len; j++)
          {
              b = b * 10 + cmd[l][j] - '0';
          } // 执行数据b
      }     // 两个数据类型的指令
      else
      {
          for (i = 2; i < len; i++)
          {
              if (cmd[l][i] == ' ')
                  break;
              a = a * 10 + cmd[l][i] - '0';
          }
          j = i;
          for (j = i + 1; j < len; j++)
          {
              b = b * 10 + cmd[l][j] - '0';
          } // 执行数据b
          p = cmd[l][0] - 'a' + 1;
      }
      if (p == 1)
      {
          sum = a + b;
          fu = '+';
      }
      else if (p == 2)
      {
          sum = a - b;
          fu = '-';
      }
      else
      {
          sum = a * b;
          fu = '*';
      }
      s1 = le(a);
      s2 = le(b);
      s3 = le(sum);
      cout << a << fu << b << '=' << sum << '\n';
      cout << s1 + s2 + s3 + 2 << '\n';
  } //
  return 0;
  }

  不知道为什么结果全WA,本地IDE跑的样例都是对的。求大佬help!