Problem:
Score : 100 points

Problem Statement

We have two integers: A and B.

Print the largest number among A + B, A - B, and A \times B.

Constraints

All values in input are integers.

-100 \leq A,\ B \leq 100

Input

Input is given from Standard Input in the following format:

A B

Output

Print the largest number among A + B, A - B, and A \times B.

Sample Input 1

-13 3

Sample Output 1

-10

The largest number among A + B = -10, A - B = -16, and A \times B = -39 is -10.

Sample Input 2

1 -33

Sample Output 2

34

The largest number among A + B = -32, A - B = 34, and A \times B = -33 is 34.

Sample Input 3

13 3

Sample Output 3

39

The largest number among A + B = 16, A - B = 10, and A \times B = 39 is 39.

Solution in C (GCC 5.4.1) (judge verdict: Accepted)


#include<stdio.h>

 int max(int a[], int N){
        int i;
        int max = a[0];
        for(i=0;i<N;i++){
            if(a[i] > max){
                max = a[i];
            }
        }
   return max;
    }

int main()
{
    int a,b;
    char s[101];
    // 整数の入力
    scanf("%d", &a);
        scanf("%d", &b);
  
  int n[3];
	n[0] = a+b;
  	n[1] = a-b;
  	n[2] = a* b;
  int ans = 0;
	ans = max(n,3);

    printf("%d",ans);
    return 0;
}