Submission #1154197

#	Time	Username	Problem	Language	Result	Execution time	Memory
1154197		THXuan	Po (COCI21_po)	C++20	50 / 70	7 ms	1604 KiB

Main

#include <iostream>
#include <vector>
#include <algorithm>
#include <cstring>
#include <string>
#include <array>
#include <cmath>
#include <stack>
#include <queue>
#include <map>
#include <set>
#define INF 1e9
using namespace std;
typedef long long ll;
const ll MOD = 1000000007;
const ll MAXN = 300005;

void solve() {
    int n; cin >> n;
    vector<ll>v(n);
    for (int i = 0; i < n; i++)cin >> v[i];
    int ans = 1;
    stack<ll>stk;
    for (int i = 0; i < n; i++) {
        while (stk.size() && stk.top() >= v[i]) {
            if (stk.top() > v[i])++ans;
            stk.pop();
        }
        stk.push(v[i]);
    }
    cout << ans << "\n";
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;// cin>>t;
    while (t--) solve();
    return 0;
}

• Subtask 1: 50 / 70