废话不多说直接上代码

#include<bits/stdc++.h>
using namespace std;
int main(){
long long a,s,d;
cin>>a>>s>>d;
if((a<=s&&a>=d)||(a>=s&&a<=d)){cout<<a;return 0;}
if((s<=d&&s>=a)||(s>=d&&s<=a)){cout<<s;return 0;}
if((d<=s&&d>=a)||(d>=s&&d<=a))cout<<d;
return 0;
}

题目传送门 ☜戳亿下

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