Create [17]_3.cpp

Author: ndb796

Solutions/[17]_3.cpp

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+#include <bits/stdc++.h>
+
+using namespace std;
+
+int n;
+vector<int> data;
+
+int main(void) {
+	cin >> n;
+	for (int i = 0; i < n; i++) {
+		int x;
+		cin >> x;
+		data.push_back(x);
+	}
+	
+	// 오름차순 정렬 수행 
+	sort(data.begin(), data.end());
+	
+	// 불만도의 합 계산
+	long long result = 0;
+	for (int i = 1; i <= n; i++) {
+		result += abs(i - data[i - 1]);
+	} 
+	
+	cout << result;
+}