0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-11-14 07:58:47 +00:00
OI-codes/problem/P6426/P6426.cpp

11 lines
161 B
C++
Raw Normal View History

#include <bits/stdc++.h>
using namespace std;
int main() {
int a, b, c;
cin >> a >> b >> c;
cout << max(b - a, c - b) - 1 << endl;
return 0;
}