Problem:
Score : 100 points

Problem Statement

There are three houses on a number line: House 1, 2 and 3, with coordinates A, B and C, respectively.
Print Yes if we pass the coordinate of House 3 on the straight way from House 1 to House 2 without making a detour, and print No otherwise.

Constraints

0\leq A,B,C\leq 100

A, B and C are distinct integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

Print Yes if we pass the coordinate of House 3 on the straight way from House 1 to House 2 without making a detour, and print No otherwise.

Sample Input 1

3 8 5

Sample Output 1

Yes

We pass the coordinate 5 on the straight way from the house at coordinate 3 to the house at coordinate 8.

Sample Input 2

7 3 1

Sample Output 2

No

Sample Input 3

10 2 4

Sample Output 3

Yes

Sample Input 4

31 41 59

Sample Output 4

No

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

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>

int max(int a,int b){
	if(a>b)return a;
	return b;
}

int min(int a,int b){
	if(a<b)return a;
	return b;
}

int compare_char(char *a,char *b){
	return strcmp(a,b);
}

int intsort(const void *a, const void *b){
	return *(int*)b - *(int*)a;
	/*qsort(a,aの配列数,sizeof(int),intsort);*/
}

int longsort(const void *a, const void *b){
	long *A=(long *)a;
	long *B=(long *)b;
	if(*A>*B) return -1;
	if(*A<*B) return 1;
	return 0;
}

int main(){
  int i,N,K,a[200];
  for(i=0;i<3;i++){
    scanf("%d",&a[i]);
  }
  if((a[0]>a[2] &&a[1]<a[2]) || (a[0]<a[2] &&a[1]>a[2])){
    printf("Yes\n");
  }else{
    printf("No\n");
  }
  return 0;
}