运行 ID: 85010

Main.cc: In function ‘int main()’:
Main.cc:6:8: error: ‘n’ was not declared in this scope
  int a[n];  // 创建数组a存放第一个向量的元素
        ^
Main.cc:6:8: note: suggested alternative: ‘yn’
  int a[n];  // 创建数组a存放第一个向量的元素
        ^
        yn
Main.cc:9:13: error: ‘a’ was not declared in this scope
      cin >> a[i];  // 依次输入第一个向量的各个元素
             ^
Main.cc:14:13: error: ‘b’ was not declared in this scope
      cin >> b[i];  // 依次输入第二个向量的各个元素
             ^
Main.cc:19:16: error: ‘a’ was not declared in this scope
      result += a[i] * b[i];  // 将对应元素相乘并累加到结果变量
                ^
Main.cc:19:23: error: ‘b’ was not declared in this scope
      result += a[i] * b[i];  // 将对应元素相乘并累加到结果变量
                       ^