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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. const int N=1e6+4;
  4. long long a[N],n;
  5. int main()
  6. {
  7.     cin>>n;
  8.     for(int i=1;i<=n;i++) cin>>a[i];
  9.     long long dem=0;
  10.     sort(a+1,a+n+1);
  11.     for(int i=2;i<=n;i++)
  12.     {
  13.         if(a[i]-a[i-1]>1) dem=dem+a[i]-a[i-1]-1;
  14.     }
  15.     cout<<dem;
  16. }
  17.  
Success #stdin #stdout 0.01s 5516KB
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https://ideone.com/3JFX8R
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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