[10817번] Three Interger 세 수 - if condition[C++]

https://www.acmicpc.net/problem/10817

#include <iostream>
 
using namespace std;
 
int main() {
    int a, b, c;
    cin >> a >> b >> c;
    if (a > b) {
        if (b >= c)    cout << b;
        else if (b < c) {
            if (a > c) cout << c;
            else if (a < c) cout << a;
            else if (a == c) cout << a;
        }
    }
    else if (a < b) {
        if (a >= c) cout << a;
        else if (a < c) {
            if (b > c) cout << c;
            else if (b < c) cout << b;
            else if (b == c) cout << b;
        }
    }
    else if (a == b) {
        if (a > c) cout << a;
        else if (a < c) cout << a;
        else if (a == c) cout << a;
    }
    return 0;
}

<Amazing Code From cubelover>

b,c;main(a){
    for( ; ~scanf("%d",&a) ; a>b? c=b,b=a : a>c?c=a : 0);
    printf("%d",c);
}