1 files changed, 70 insertions, 0 deletions
diff --git a/16/open/plat/landscape.cpp b/16/open/plat/landscape.cpp
new file mode 100644
index 0000000..46e8d8e
--- /dev/null
+++ b/16/open/plat/landscape.cpp
@@ -0,0 +1,70 @@
+#include <algorithm>
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include <queue>
+#include <set>
+#include <map>
+#include <unordered_set>
+#include <unordered_map>
+#include <cmath>
+#include <cstring>
+#define init_io(pname) ifstream cin((string)pname+".in"); ofstream cout((string)pname+".out"); ios_base::sync_with_stdio(false); cin.tie(NULL)
+#define FOR(i, a, b, in) for (int i = (a); i < (b); i += in)
+#define REP(i, a, b) for (int i = (a); i < (b); i++)
+#define RFOR(i, a, b, in) for (int i = (a) - 1; i >= (b); i -= in)
+#define RREP(i, a, b) for (int i = (a) - 1; i >= (b); i--)
+#define trav(a, x) for (auto& a : x)
+#define mp make_pair
+#define pb push_back
+#define f first
+#define s second
+#define lb lower_bound
+#define ub upper_bound
+#define sz(x) (int)x.size()
+#define all(x) begin(x), end(x)
+#define rsz resize
+#define mem(a, b) memset(a, (b), sizeof(a))
+using namespace std;
+typedef string str;
+typedef long long ll;
+typedef long double ld;
+typedef pair<int, int> ii; typedef pair<ll, ll> pl; typedef pair<ld, ld> pd;
+typedef vector<int> vi; typedef vector<ll> vl; typedef vector<ld> vd;
+typedef vector<ii> vii; typedef vector<pl> vpl; typedef vector<pd> vpd;
+constexpr auto INF = (int)1e9;
+constexpr auto LINF = (ll)1e18;
+
+vi A, B;
+priority_queue<ll> p1, p2;
+
+int main() {
+	init_io("landscape");
+
+	ll N, X, Y, Z, ans = 0;
+	cin >> N >> X >> Y >> Z;
+	for (int i = 0; i < N; i++) {
+		int A, B;
+		cin >> A >> B;
+		for (int j = A; j < B; j++) {
+			ll cost = X;
+			if (!p2.empty() && i * Z - p2.top() < X) {
+				cost = i * Z - p2.top();
+				p2.pop();
+			}
+			ans += cost;
+			p1.push(i * Z + cost);
+		}
+		for (int j = B; j < A; j++) {
+			ll cost = Y;
+			if (!p1.empty() && i * Z - p1.top() < Y) {
+				cost = i * Z - p1.top();
+				p1.pop();
+			}
+			ans += cost;
+			p2.push(i * Z + cost);
+		}
+	}
+	cout << ans << endl;
+}