제출 #1266367

#제출 시각아이디문제언어결과실행 시간메모리
1266367canhnam357Po (COCI21_po)C++20
70 / 70
7 ms1876 KiB
// source problem : #include <bits/stdc++.h> using namespace std; #define all(x) x.begin(), x.end() #define int long long #define lb lower_bound #define ub upper_bound #define MASK(i) (1LL << (i)) const int inf = 1e18; void ckmax(int& f, int s) { f = (f > s ? f : s); } void ckmin(int& f, int s) { f = (f < s ? f : s); } int32_t main() { ios_base::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector<int> a(n); for (int &i : a) cin >> i; vector<int> b; int ans = 0; for (int i : a) { if (i == 0) { b = {}; continue; } while (!b.empty() && b.back() > i) b.pop_back(); if (b.empty() || b.back() != i) ans++, b.push_back(i); } cout << ans; return 0; }
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