ABC103A - Task Scheduling Problem

問題：A - Task Scheduling Problem

#include <algorithm>
#include <iostream>
using namespace std;

#define REP(i, n) for (int i = 0; i < (n); ++i)

int main(void) {
    const int INF = 1 << 30;
    int a, max_a = INF * (-1), min_a = INF;

    REP(i, 3) {
        cin >> a;
        max_a = max(max_a, a);
        min_a = min(min_a, a);
    }

    cout << max_a - min_a << "\n";
    return 0;
}