个人感觉还是挺简洁的

import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();
        int count = 0;
        if(a*b > a+b){//先判断a+b和a*b哪个更大,取大者进行运算
            count = a*b;
        }else{
            count = a+b;
        }
        if(c > 1){//c小于1就相加,c大于1就相乘
            System.out.println(count * c);
        }else{
            System.out.println(count + c);
        }
    }
}