Use namespace std// Use
int main()
{
int a，b，c； //Explain the plastic variable abc
int f(int x，int y，int z)； //Function prototype description
CIN & gt； & gta & gt& gtb & gt& gtc； //Enter 3 integers into abc from the keyboard.
c=f(a，b，c)； //Call the function with the value of abc, and the function returns the value to C.
Cout & lt& ltc<& ltendl// outputs the value of C.
Returns 0; //At the end of the program, return 0 to the system environment, indicating that the operation is successful.
}
int f(int x，int y，int z)
{
int m； //local variable m, (local variable xyz will get the parameter value given when calling the function)
if(x & lt； y)m = x； //x is less than y, and m takes x value.
else m = y； //x is not less than y, and m takes y value.
if(z & lt； m)m = z； //z is less than m, and m takes z value.
Return (m); //After the above three sentences, m is the minimum value of x, y and z, ending the function and returning the value of m..
}
//The original program is to input three integers, and the program outputs the smallest number after judgment.