Submission #1126774

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126774		koukirocks	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++20	13 / 100	832 ms	123768 KiB

sortbooks

#include<bits/stdc++.h>
#define speed ios_base::sync_with_stdio(0);cin.tie(0)
#define F first
#define S second

using namespace std;
template<typename T>
using vvector = vector<vector<T>>;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const ll INF=0x3f3f3f3f;
const ll P=1e9+7;

int main() {
    speed;
    int n,m;
    cin>>n>>m;
    vector<int> a(n+1);
    for (int i=1;i<=n;i++) {
        cin>>a[i];
    }
    for (int i=n;i>=1;i--) {
        a[i]-=a[i-1];
    }
    vvector<int> spt(n+1,vector<int>(21,-INF));
    for (int i=n;i>=1;i--) {
        spt[i][0]=a[i];
        for (int k=1;k<=20;k++) {
            if (i+(1<<k)-1>n) break;
            spt[i][k]=min(spt[i][k-1],spt[i+(1<<k-1)][k-1]);
        }
    }
    while (m--) {
        int l,r,k;
        cin>>l>>r>>k;
        if (l==r) {
            cout<<"1\n";
            continue;
        }
        l++;
        int cnt=0;
        while (l+(1<<cnt)-1<=r) {
            cnt++;
        }
        cnt--;
        // cout<<l<<" "<<r<<" "<<cnt<<"\n";
        if (min(spt[l][cnt],spt[r-(1<<cnt)+1][cnt])<0) cout<<"0\n";
        else cout<<"1\n";
    }
    return 0;
}

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