some dp problems

CSES - CSES Problem Set/Sorting_And_Searching/Stick_Lengths.cpp

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+//  Stick Lengths
+
+#include<bits/stdc++.h>
+
+using namespace std;
+using ll = long long;
+
+int main() {
+    int n; cin >> n;
+    vector<ll> in(n);
+    for (auto &e: in) cin >> e;
+    std::sort(in.begin(), in.end());
+    ll target = in[n/2];
+    ll target2 = in[n/2 + 1];
+    ll count = 0, count2 = 0;
+    for (auto e: in) {
+        count += abs(target - e);
+        count2 += abs(target2 - e);
+    }
+    cout << min(count, count2) << endl;
+
+
+    return 0;
+}