[BOJ] 13164 행복 유치원 (G5)

Author: uiop5809

박예진/9주차/260225.cpp

@@ -0,0 +1,31 @@
+//https://www.acmicpc.net/problem/13164
+
+#include <iostream>
+#include <vector>
+#include <algorithm>
+using namespace std;
+
+int N, K;
+int arr[300001];
+vector<int> v;
+
+int main(){
+    ios_base::sync_with_stdio(false);
+    cin.tie(NULL); cout.tie(NULL);
+
+    cin >> N >> K;
+    cin >> arr[0];
+    for(int i = 1; i < N; i++){
+        cin >> arr[i];
+        v.push_back(arr[i] - arr[i - 1]);
+    }
+    sort(v.begin(), v.end());
+
+    int sum = 0;
+    for(int i = 0; i < N - K; i++){
+        sum += v[i];
+    }
+    cout << sum;
+
+    return 0;
+}