为什么不赋初值也能算出下列的算式

Question

#include<iostream>
using namespace std;
int main()
{
    int a, b, c;
    //a=3;
    c = (int)(a + 6.5) % 2 + (a = b = 5);
    cout << c;
    return 0;

    
}
```c++

```

Answer 1

因为系统会给你随机配个数，相当于脏数据