Submission #887330

#	Time	Username	Problem	Language	Result	Execution time	Memory
887330		votranngocvy	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	17 / 100	925 ms	60228 KiB

sortbooks

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

#define int long long
#define pii pair<int,int>
#define piii pair<pii,int>
#define fi first
#define se second
#define mp make_pair
const int N = 1e6 + 5;
int a[N],n,m;
piii queries[N];

namespace sub1 {
    int b[N];
    void solve() {
        for (int i = 1; i <= m; i++) {
            for (int j = 1; j <= n; j++) b[j] = a[j];
            int l = queries[i].fi.fi,r = queries[i].fi.se,k = queries[i].se;
            bool check = true;
            for (int j = l; j < r; j++)
                if (b[j] > b[j + 1]) {
                    check = false;
                    break;
                }
            while (!check) {
                bool found = false;
                for (int j = l; j < r; j++)
                    if (b[j] > b[j + 1]) {
                        if (b[j] + b[j + 1] <= k) swap(b[j],b[j + 1]);
                        else found = true;
                        break;
                    }
                if (found) break;
                check = true;
                for (int j = l; j < r; j++)
                if (b[j] > b[j + 1]) {
                    check = false;
                    break;
                }
            }
            cout << check << "\n";
        }
    }
}

namespace sub2 {
    void solve() {
        for (int i = 1; i <= m; i++) {
            int l = queries[i].fi.fi,r = queries[i].fi.se,k = queries[i].se;
            set<int>s;
            bool check = true;
            for (int j = r; j >= l; j--) {
                auto it = s.lower_bound(a[j]);
                if (it != s.begin()) {
                    it--;
                    if ((*it) + a[j] > k) {
                        check = false;
                        break;
                    }
                }
                s.insert(a[j]);
            }
            cout << check << "\n";
        }
    }
}

namespace sub3 {
    bool check_condition() {
        int Min = 1e9 + 7;
        for (int i = 1; i <= n; i++) Min = min(Min,a[i]);
        for (int i = 1; i <= m; i++)
            if (queries[i].se > Min) return false;
        return true;
    }
    void solve() {
        for (int i = 1; i <= m; i++) cout << 0 << "\n";
    }
}

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= n; i++) cin >> a[i];
    for (int i = 1; i <= m; i++) 
        cin >> queries[i].fi.fi >> queries[i].fi.se >> queries[i].se;
    if (n <= 500 && m <= 500) 
        sub1::solve();
    else if (n <= 5000 && m <= 5000)
        sub2::solve(); 
    else if (sub3::check_condition())
        sub3::solve();
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 30
• Subtask 6: 0 / 23