Submission #779843

#	Time	Username	Problem	Language	Result	Execution time	Memory
779843		khoquennguoiminhthuong	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	0 / 100	152 ms	12432 KiB

sortbooks

#include <bits/stdc++.h>

using namespace std;
int n,q;
int a[1000005];
int tree[100005];
void upd(int id,int val) {
    while(id>0) {
        tree[id]=max(tree[id],val);
        id-=(id&(-id));
    }
}
int get(int id) {
    int maxx=-2e9;
    while(id<=n) {
        maxx=max(maxx,tree[id]);
        id+=(id&(-id));
    }
    return maxx;
}
struct que {
    int l,r,k,id;
} qu[100005];
bool cmp(que a,que b) {
    return a.r<b.r;
}
int ans[100005];
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>q;
    for(int i=1; i<=n; i++)cin>>a[i];
    for(int i=1; i<=q; i++) {
        int l,r,k;
        cin>>l>>r>>k;
        qu[i]= {l,r,k,i};
    }
    sort(qu+1,qu+q+1,cmp);
    int dd=0;
    stack<int>st;
    for(int i=1; i<=q; i++) {
        while(dd+1<=qu[i].r) {
            dd++;
            while(st.size()&&a[st.top()]<a[dd])st.pop();
            if(st.size()>0){upd(st.top(),a[st.top()]+a[dd]);}
            st.push(dd);
        }
        if(get(qu[i].l)>qu[i].k)ans[qu[i].id]=0;
        else ans[qu[i].id]=1;
    }
    for(int i=1; i<=q; i++)cout<<ans[i]<<'\n';
    return 0;
}

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