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  1. #include <bits/stdc++.h>
  2. #define pb push_back
  3. using namespace std;
  4.  
  5. typedef long long ll;
  6.  
  7. ll b, d, s;
  8.  
  9. int main() {
  10.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  11.     cin >> b >> d >> s;
  12.     vector<ll> a;
  13.     a.pb(b);
  14.     a.pb(d);
  15.     a.pb(s);
  16.     sort(a.rbegin(), a.rend());  
  17.     ll ans = 0;
  18.     if(a[0]-a[1])
  19.         ans += a[0]-a[1]-1;
  20.     if(a[0]-a[2])
  21.         ans += a[0]-a[2]-1;
  22.     cout << ans; 
  23.     return 0;
  24. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin 
3 2 1
stdout 
1
https://ideone.com/EgztAG
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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