c++ - C语言函数实际声明类型为int，接受返回值类型为float，最终返回结果以什么为准？

Answer 1

1. I typed it myself and the result was 5.00. The answer is wrong. It may be the difference between compilers. I use gcc;

2. In addition, it is recommended not to use mobile phone software to answer these basic questions. They do not know where to find the questions and answers. It is recommended to directly look for the C language final examination paper from a prestigious school and do it
   

Answer 2

I debugged it with the C++ compiler and found that the answer is 5.
There are many explicit or implicit type conversions in this program. The topic is the same as the link description in this article

Answer 3

I think the answer is wrong, why don’t you write a program yourself and try it

Answer 4

The answer is wrong, I personally think