Submission #367103

#	Time	Username	Problem	Language	Result	Execution time	Memory
367103		ritul_kr_singh	Po (COCI21_po)	C++17	70 / 70	13 ms	1516 KiB

Main

//#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define sp << " " <<
#define nl << "\n"

signed main(){
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    int n; cin >> n;
    int a[n], ans = 0;
    for(int& i : a) cin >> i;

    stack<int> s;
    s.push(0);

    for(int i=0; i<n; ++i){
        while(!s.empty() and s.top() > a[i]){
            s.pop();
            ++ans;
        }
        if(s.empty() or s.top() < a[i]) s.push(a[i]);
    }
    while(!s.empty()){
        s.pop();
        ++ans;
    }
    cout << ans-1 nl;
}

• Subtask 1: 70 / 70