Submission #649545

#	Time	Username	Problem	Language	Result	Execution time	Memory
649545		murad_2005	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	17 / 100	286 ms	4292 KiB

sortbooks

#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2")
#pragma GCC optimize("unroll-loops")
#define ll long long
#define ld long double
#define ull unsigned long long
#define ui unsigned int
#define eb emplace_back
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define pb push_back
#define pf push_front
#define pii pair<int, int>
#define pil pair<int, ll>
#define plli pair<long long, int>
#define pdi pair<double, int>
#define pldldi pair<ld, pair<ld, int>>
#define pdd pair<double, double>
#define pid pair<int, double>
#define piii pair<int, pair<int, int>>
#define pllll pair<long long, long long>
#define pllllll pair<ll, pllll>
#define INF 2e9 + 5
#define size(v) v.size()
#define f first
#define s second
#define Pi 3.14159265359

using namespace std;

const int up = 1e5 + 5;

///Subtask3

int st[up << 2], a[up];

int Merge(bool L, bool R, int posl, int posr){
    if(!(L & R)){
        return 0;
    }else{
        int k = (posr - posl + 1) / 2;
        if(a[posl + k - 1] > a[posl + k]){
            return 0;
        }
    }
    return 1;
}

void build(int node, int l, int r){
    if(l == r){
        st[node] = 1;
    }else{
        int mid = (l + r) / 2;
        build(node << 1, l, mid), build((node << 1) | 1, mid + 1, r);
        st[node] = Merge(st[node << 1], st[(node << 1) | 1], l, r);
    }
}

int query(int node, int l, int r, int ql, int qr){
    if(l > qr || ql > r){
        return 1;
    }else if(ql <= l && r <= qr){
        return st[node];
    }else{
        int mid = (l + r) / 2;
        int L = query(node << 1, l, mid, ql, qr), R = query((node << 1) | 1, mid + 1, r, ql, qr);
        return Merge(L, R, ql, qr);
    }
}

void Subtask1and2(int n, int m){
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    while(m--){
        int l, r, k, flag = 0;
        cin >> l >> r >> k;
        vector<int>v;
        for(int i = l; i <= r; i++){
            v.pb(a[i]);
        }
        int Max = -INF;
        for(int i = 0; i < size(v); i++){
            Max = max(Max, v[i]);
            if(i > 0){
                if(Max > v[i] && Max + v[i] > k){
                    flag = 1;
                    break;
                }
            }
        }
        cout << (flag ^ 1) << "\n";
    }
}

void Subtask3(int n, int m){
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    build(1, 1, n);
    while(m--){
        int l, r, k;
        cin >> l >> r >> k;
        cout << query(1, 1, n, l, r) << "\n";
    }
}



void solve(){
    int n, m;
    cin >> n >> m;
    if(n <= 5000 && m <= 5000){
        Subtask1and2(n, m);
    }else{
        Subtask3(n, m);
    }
}

int main(){
    int t;
    t = 1;
    // cin >> t;
    while(t--){
        solve();
    }
    return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'void Subtask1and2(int, int)':
sortbooks.cpp:84:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for(int i = 0; i < size(v); i++){
      |                          ^

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