P3076 [USACO13FEB]Taxi G

https://www.luogu.com.cn/record/85669174

Luogu/P3076/P3076.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+#include <algorithm>
+#include <cmath>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 1e5 + 5;
+
+int n, m, x[N], y[N];
+long long ans;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n >> m;
+
+    x[0] = m;
+
+    for (int i = 1; i <= n; i++) {
+        cin >> x[i] >> y[i];
+
+        ans += std::abs(x[i] - y[i]);
+    }
+
+    std::sort(x, x + 1 + n);
+    std::sort(y, y + 1 + n);
+
+    for (int i = 0; i <= n; i++) {
+        ans += std::abs(x[i] - y[i]);
+    }
+
+    cout << ans << endl;
+
+    return 0;
+}