285C CodeForces - Building Permutation

285C CodeForces - building permutation

++Solution in c

# include <bits/stdc++.h>

using namespace std;

int main() {

    long long int n;cin>>n;

    long long int a[n];long long int t=0;

   
    long long int f=1;

    for(long long int i=0;i<n;i++)

    {cin>>a[i];}

    sort(a,a+n);

    for(long long int i=0;i<n;i++)

    {

     t=t+abs(a[i]-f);   

      f++;  

    }

    cout<<t<<endl;

}

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