cses

commit 8b321a709f927b016bc3e4557ced41a0ee9b981a
parent e403ee5e221be27a14411d0b92529053c5ac7a8d
Author: superpozycja <anna@superpozycja.net>
Date:   Tue, 29 Oct 2024 11:09:06 +0100

solve playlist

Diffstat:
A
sorting_and_searching/playlist.cpp
 | 
49
+++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 49 insertions(+), 0 deletions(-)
diff --git a/sorting_and_searching/playlist.cpp b/sorting_and_searching/playlist.cpp
@@ -0,0 +1,49 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+using ui = unsigned int;
+using l = long;
+using ul = unsigned long;
+using ll = long long;
+using ull = unsigned long long;
+
+using vi = vector<int>;
+using vui = vector<ui>;
+using vl = vector<l>;
+using vul = vector<ul>;
+using vll = vector<ll>;
+using vull = vector<ull>;
+
+void solve()
+{
+	int n;
+	cin >> n;
+	int k[n];
+	for (int i = 0; i < n; i++) {
+		cin >> k[i];
+	}
+
+	int l = 0,  r = 0;
+	int res = 0;
+	multiset<int> u;
+
+	while (r < n) {
+		u.insert(k[r]);
+		while (u.count(k[r]) > 1) {
+			u.erase(u.find(k[l]));
+			l++;
+		}
+		res = max(res, r - l + 1);
+		r++;
+	}
+
+	cout << res << "\n";
+}
+
+int main()
+{
+	ios::sync_with_stdio(0);
+	cin.tie(0);
+	solve();
+}