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Submission #683405

# Submission time Handle Problem Language Result Execution time Memory
683405 2023-01-18T10:32:35 Z FatihSolak Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
64 / 100
 2250 ms 262144 KB 
#include <bits/stdc++.h>
#define N 1000005
using namespace std;
const int szz = N * 10;
int a[N];
int ans[N];
struct node{
    int val = 0,maxi = -1;
};
struct node2{
    int l = 0,r = 0, val = 0;
}tree[szz];
vector<pair<int,int>> roots;
int cnt = 1;
int upd(int v,int tl,int tr,int pos,int val){
    assert(cnt < szz);
    if(tl == tr){
        int nw = ++cnt;
        tree[nw].val = tree[v].val + val;
        return nw;
    }
    int tm = (tl + tr)/2;
    if(pos <= tm){
        int nw = ++cnt;
        tree[nw].l = upd(tree[v].l,tl,tm,pos,val);
        tree[nw].r = tree[v].r;
        tree[nw].val = tree[tree[nw].l].val +  tree[tree[nw].r].val;
        return nw;
    }
    else{
        int nw = ++cnt;
        tree[nw].l = tree[v].l;
        tree[nw].r = upd(tree[v].r,tm+1,tr,pos,val);
        tree[nw].val = tree[tree[nw].l].val +  tree[tree[nw].r].val;
        return nw;
    }
}
int gett(int v,int tl,int tr,int l,int r){
    if(r < tl || tr < l){
        return 0;
    }
    if(l <= tl && tr <= r){
        return tree[v].val;
    }
    int tm = (tl + tr)/2;
    return gett(tree[v].l,tl,tm,l,r) + gett(tree[v].r,tm+1,tr,l,r);
}
struct SegTree{
    vector<node> t;
    int n;
    int k;
    SegTree(int sz){
        n = sz;
        t.assign(4*n,{0,-1});
        build(1,1,n);
    }
    node merge(node a,node b){
        node ret;
        ret.val = max(a.val,b.val);
        ret.maxi = max(a.maxi,b.maxi);
        return ret;
    }
    void build(int v,int tl,int tr){
        if(tl == tr){
            t[v].maxi = a[tl];
            return;
        }
        int tm = (tl + tr)/2;
        build(v*2,tl,tm);
        build(v*2+1,tm+1,tr);
        t[v] = merge(t[v*2],t[v*2+1]);
        for(int i = tm+1;i<=tr;i++){
            if(a[i] < t[v*2].maxi){
                t[v].val = max(t[v].val,t[v*2].maxi + a[i]);
            }
        }
    }
    node get(int v,int tl,int tr,int l,int r){
        if(tr < l || r < tl){
            return {0,-1};
        }
        if(l <= tl && tr <= r){
            return t[v];
        }
        int tm = (tl + tr)/2;
        node a = get(v*2,tl,tm,l,r);
        node b = get(v*2+1,tm+1,tr,l,r);
        int num = k+1 - a.maxi;
        if(num < a.maxi){
            int cnt = 0;
            int idx = upper_bound(roots.begin(),roots.end(),make_pair(num,0),greater<pair<int,int>>()) - roots.begin() - 1;
            if(roots[0].first >= num){
                cnt += gett(roots[idx].second,1,n,max(l,tm+1),min(r,tr));
            }
            idx = upper_bound(roots.begin(),roots.end(),make_pair(a.maxi,0),greater<pair<int,int>>()) - roots.begin() - 1;
            if(roots[0].first >= a.maxi)
                cnt -= gett(roots[idx].second,1,n,max(l,tm+1),min(r,tr));
            if(cnt)
                a.val = k+1;
        }
        return merge(a,b);
    }
    node get(int l,int r,int kk){
        k = kk;
        return get(1,1,n,l,r);
    }
};
void solve(){
    int n,m;
    cin >> n >> m;
    vector<int> cmp;
    for(int i = 1;i<=n;i++){
        cin >> a[i];
        cmp.push_back(i);
    }
    sort(cmp.begin(),cmp.end(),[&](int x,int y){
        return a[x] > a[y];
    });
    roots.push_back({a[cmp[0]],1});
    for(auto u:cmp){
        int tmp = roots.back().second;
        if(roots.back().first == a[u])
            roots.pop_back();
        roots.push_back({a[u],upd(tmp,1,n,u,1)});
    }
    SegTree t(n);
    for(int i = 1;i<=m;i++){
        int l,r,k;
        cin >> l >> r >> k;
        ans[i] = t.get(l,r,k).val <= k;
    }
    for(int i = 1;i<=m;i++){
        cout << ans[i] << '\n';
    }
}
    
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    #ifdef Local
    freopen("in.txt","r",stdin);
    freopen("out.txt","w",stdout);
    #endif
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
    #ifdef Local
    cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 428 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 428 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 12 ms 596 KB Output is correct
12 Correct 14 ms 1424 KB Output is correct
13 Correct 15 ms 1364 KB Output is correct
14 Correct 28 ms 1464 KB Output is correct
15 Correct 23 ms 1364 KB Output is correct
16 Correct 19 ms 1460 KB Output is correct
17 Correct 4 ms 1236 KB Output is correct
18 Correct 5 ms 1364 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 660 ms 262144 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 711 ms 25784 KB Output is correct
2 Correct 825 ms 25792 KB Output is correct
3 Correct 446 ms 25692 KB Output is correct
4 Correct 473 ms 25648 KB Output is correct
5 Correct 418 ms 25676 KB Output is correct
6 Correct 575 ms 25708 KB Output is correct
7 Correct 522 ms 25672 KB Output is correct
8 Correct 139 ms 25660 KB Output is correct
9 Correct 50 ms 1004 KB Output is correct
10 Correct 153 ms 25620 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 428 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 12 ms 596 KB Output is correct
12 Correct 14 ms 1424 KB Output is correct
13 Correct 15 ms 1364 KB Output is correct
14 Correct 28 ms 1464 KB Output is correct
15 Correct 23 ms 1364 KB Output is correct
16 Correct 19 ms 1460 KB Output is correct
17 Correct 4 ms 1236 KB Output is correct
18 Correct 5 ms 1364 KB Output is correct
19 Correct 2227 ms 54964 KB Output is correct
20 Correct 2250 ms 54864 KB Output is correct
21 Correct 2223 ms 54872 KB Output is correct
22 Correct 2244 ms 54868 KB Output is correct
23 Correct 2142 ms 54884 KB Output is correct
24 Correct 1229 ms 54972 KB Output is correct
25 Correct 1213 ms 54976 KB Output is correct
26 Correct 1307 ms 54928 KB Output is correct
27 Correct 1334 ms 54980 KB Output is correct
28 Correct 1314 ms 54968 KB Output is correct
29 Correct 1226 ms 54940 KB Output is correct
30 Correct 1228 ms 55132 KB Output is correct
31 Correct 1331 ms 55080 KB Output is correct
32 Correct 1305 ms 54908 KB Output is correct
33 Correct 1308 ms 55044 KB Output is correct
34 Correct 1321 ms 54916 KB Output is correct
35 Correct 1360 ms 54824 KB Output is correct
36 Correct 1363 ms 54916 KB Output is correct
37 Correct 1330 ms 54936 KB Output is correct
38 Correct 1317 ms 55044 KB Output is correct
39 Correct 906 ms 54980 KB Output is correct
40 Correct 168 ms 35500 KB Output is correct
41 Correct 275 ms 53364 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 428 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 12 ms 596 KB Output is correct
12 Correct 14 ms 1424 KB Output is correct
13 Correct 15 ms 1364 KB Output is correct
14 Correct 28 ms 1464 KB Output is correct
15 Correct 23 ms 1364 KB Output is correct
16 Correct 19 ms 1460 KB Output is correct
17 Correct 4 ms 1236 KB Output is correct
18 Correct 5 ms 1364 KB Output is correct
19 Runtime error 660 ms 262144 KB Execution killed with signal 6
20 Halted 0 ms 0 KB -