Submission #1027069

#	Time	Username	Problem	Language	Result	Execution time	Memory
1027069		vanea	Bali Sculptures (APIO15_sculpture)	C++17	0 / 100	1 ms	456 KiB

sculpture

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

const ll INF = 1e18;

bool check(ll mid, int x, vector<ll> v) {
    ll curr = 0;
    int cnt = 1, n = v.size();
    for(int i = 0; i < n; i++) {
        if(v[i] > mid) return false;
        if(curr + v[i] > mid) {
            curr = v[i];
            cnt++;
        }
        else curr += v[i];
    }
    return cnt <= x;
}

ll calc(ll mn, vector<ll> v) {
    ll ans = 0, curr = 0;
    int n = v.size();
    for(int i = 0; i < n; i++) {
        if(curr+v[i] > mn) {
            ans |= curr;
            curr = v[i];
        }
        else curr += v[i];
    }
    ans |= curr;
    return ans;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, a, b;
    cin >> n >> a >> b;
    vector<ll> v(n);
    ll s = 0;
    for(int i = 0; i < n; i++) {
        cin >> v[i];
        s += v[i];
    }
    ll ans = INF;
    for(int i = a; i <= n; i++) {
        ll l = 0, r = s, mn = INF;
        while(l <= r) {
            ll mid = (l+r)/2;
            if(check(mid, i, v)) {
                mn = min(mn, mid);
                r = mid-1;
            }
            else l = mid+1;
        }
        ans = min(ans, calc(mn, v));
    }
    cout << ans;
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 25
• Subtask 5: 0 / 29