Submission #860480

#	Time	Username	Problem	Language	Result	Execution time	Memory
860480		Alfraganus	Bigger segments (IZhO19_segments)	C++17	0 / 100	1 ms	348 KiB

segments

#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define fs first
#define ss second
#define str string
#define all(a) a.begin(), a.end()
#define print(a)          \
    for (auto x : a)      \
        cout << x << ' '; \
    cout << endl;
#define each(x, a) for (auto x : a)

struct node {
    int s, l, r;
};

void solve()
{
    int n;
    cin >> n;
    vector<int> a(n);
    for(int i = 0; i < n; i ++)
        cin >> a[i];
    vector<node> p;
    p.push_back({a[0], 0, 0});
    int l = 1, r = 1, s = 0, ans = 1;
    while(r < n and l < n){
        while(r < n and p.back().s > s)
            s += a[r], r ++;
        if(p.back().s <= s)
            ans ++;
        p.push_back({s, l, r});
        for(int i = p.size() - 1; i >= 1; i --){
            while(p[i].s - a[p[i].l] >= p[i - 1].s + a[p[i].l])
                p[i].s -= a[p[i].l], p[i - 1].s += a[p[i].l], p[i].l ++, p[i - 1].r ++;
        }
        l = r;
        s = 0;
    }
    cout << ans << endl;
}

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
    // cin >> t;
    while (t--)
    {
        solve();
        cout << endl;
    }
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27