Created
July 12, 2019 09:22
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#include <cmath> | |
#include <vector> | |
#include <iostream> | |
#include <algorithm> | |
using namespace std; | |
int main(void) { | |
ios_base::sync_with_stdio(false); | |
cin.tie(nullptr); | |
int n; | |
cin >> n; | |
vector<int> a(n); | |
for (int i = 0; i < n; i++) { | |
cin >> a[i]; | |
} | |
sort(a.begin(), a.end()); | |
long long ans = 0; | |
for (int i = 0; i < n; i++) { | |
ans += abs(i + 1 - a[i]); | |
} | |
cout << ans << '\n'; | |
return 0; | |
} |
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