cses

commit 8e6988fa09d48111bed9bcbb4f7baa9343950cf7
parent 6115f7b029e960ac888b3fe7b0ca7a8ada099258
Author: superpozycja <anna@superpozycja.net>
Date:   Sun,  3 Nov 2024 23:49:04 +0100

solve nearest smaller values

Diffstat:
A
sorting_and_searching/nearest_smaller_values.cpp
 | 
43
+++++++++++++++++++++++++++++++++++++++++++

1 file changed, 43 insertions(+), 0 deletions(-)
diff --git a/sorting_and_searching/nearest_smaller_values.cpp b/sorting_and_searching/nearest_smaller_values.cpp
@@ -0,0 +1,43 @@
+#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;
+	stack<pair<int, int>> m;
+	for (int i = 0; i < n; i++) {
+		int x;
+		cin >> x;
+		while (!m.empty() && m.top().first >= x)
+			m.pop();
+		if (m.empty())
+			cout << "0 ";
+		else
+			cout << m.top().second << " ";
+
+		m.push({x, i + 1});
+	}
+	cout << "\n";
+}
+
+int main()
+{
+	ios::sync_with_stdio(0);
+	cin.tie(0);
+	solve();
+}