oj.uz

Submission #908674

# Submission time Handle Problem Language Result Execution time Memory
908674 2024-01-16T16:23:28 Z SalihSahin Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
64 / 100
 2704 ms 262144 KB 
#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
using namespace std;
 
const int mod = 1e9 + 7;
const int N = 2e5 + 5;

struct node{
    int mx, calc;
    node(){
        mx = calc = 0;
    }
};

node merge(node a, node b, vector<int> &arr){
    node res;
    res.mx = max(a.mx, b.mx);
    res.calc = max(a.calc, b.calc);
    if(arr[0] < a.mx){
        auto x = lower_bound(arr.begin(), arr.end(), a.mx) - arr.begin();
        x--;
        res.calc = max(res.calc, arr[x] + a.mx);
    }

    return res;
}

struct SEGT{
    vector<node> tree;
    vector<vector<int> > list;
    int S;

    void init(int n){
        tree.assign(4*n, node());
        list.resize(4*n);
        S = n;
    }

    void build(int ind, int l, int r, vector<int> &a){
        if(l == r){
            list[ind].pb(a[l]);
            tree[ind].mx = a[l];
        }
        else{
            int m = (l + r)/2;

            build(ind*2, l, m, a);
            build(ind*2+1, m+1, r, a);

            int il = 0, ir = 0;
            while(il < list[ind*2].size() && ir < list[ind*2+1].size()){
                if(list[ind*2][il] <= list[ind*2+1][ir]){
                    list[ind].pb(list[ind*2][il]);
                    il++;
                }
                else{
                    list[ind].pb(list[ind*2+1][ir]);
                    ir++;
                }
            }
            while(il < list[ind*2].size()){
                list[ind].pb(list[ind*2][il]);
                il++;
            }
            while(ir < list[ind*2+1].size()){
                list[ind].pb(list[ind*2+1][ir]);
                ir++;
            }

            tree[ind] = merge(tree[ind*2], tree[ind*2+1], list[ind*2+1]);
        }
    }

    int querylist(int ind, int l, int r, int ql, int qr, int k){
        if(l > r || l > qr || r < ql) return 0;
        if(l >= ql && r <= qr){
            if(list[ind][0] >= k) return 0;

            auto x = lower_bound(list[ind].begin(), list[ind].end(), k) - list[ind].begin();
            x--;
            return list[ind][x];
        }
        else{
            int m = (l + r)/2;
            return max(querylist(ind*2, l, m, ql, qr, k), querylist(ind*2+1, m+1, r, ql, qr, k));            
        }
    }

    int query(int ind, int l, int r, int ql, int qr){
        if(l > r || l > qr || r < ql) return 0;
        if(l >= ql && r <= qr){

            int gh = querylist(1, 1, S, r, qr, tree[ind].mx);
            int val = tree[ind].calc;
            if(gh != 0 && tree[ind].mx > gh){
                val = max(val, tree[ind].mx + gh);
            }

            return val;
        }
        else{
            int m = (l + r)/2;
            return max(query(ind*2, l, m, ql, qr), query(ind*2+1, m+1, r, ql, qr));            
        }
    }
};
 
int32_t main(){
    cin.tie(0); cout.tie(0);
    ios_base::sync_with_stdio(false);
    int n, q;
    cin>>n>>q;
    vector<int> a(n+1);
    for(int i = 1; i <= n; i++){
        cin>>a[i];
    }
    SEGT seg;
    seg.init(n);
    seg.build(1, 1, n, a);

    while(q--){
        int l, r, k;
        cin>>l>>r>>k;

        int val = seg.query(1, 1, n, l, r);
        if(val <= k) cout<<1<<endl;
        else cout<<0<<endl;
    }
    return 0;
}

Compilation message

sortbooks.cpp: In member function 'void SEGT::build(int, int, int, std::vector<int>&)':
sortbooks.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |             while(il < list[ind*2].size() && ir < list[ind*2+1].size()){
      |                   ~~~^~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:52:49: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |             while(il < list[ind*2].size() && ir < list[ind*2+1].size()){
      |                                              ~~~^~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:62:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |             while(il < list[ind*2].size()){
      |                   ~~~^~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:66:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |             while(ir < list[ind*2+1].size()){
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 500 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 500 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 14 ms 860 KB Output is correct
12 Correct 14 ms 1628 KB Output is correct
13 Correct 16 ms 1628 KB Output is correct
14 Correct 25 ms 1884 KB Output is correct
15 Correct 28 ms 1884 KB Output is correct
16 Correct 20 ms 1628 KB Output is correct
17 Correct 13 ms 1368 KB Output is correct
18 Correct 16 ms 1624 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 421 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1025 ms 28108 KB Output is correct
2 Correct 1089 ms 28140 KB Output is correct
3 Correct 709 ms 28040 KB Output is correct
4 Correct 623 ms 27984 KB Output is correct
5 Correct 551 ms 28032 KB Output is correct
6 Correct 620 ms 28012 KB Output is correct
7 Correct 612 ms 28040 KB Output is correct
8 Correct 538 ms 27740 KB Output is correct
9 Correct 175 ms 1616 KB Output is correct
10 Correct 501 ms 27888 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 500 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 14 ms 860 KB Output is correct
12 Correct 14 ms 1628 KB Output is correct
13 Correct 16 ms 1628 KB Output is correct
14 Correct 25 ms 1884 KB Output is correct
15 Correct 28 ms 1884 KB Output is correct
16 Correct 20 ms 1628 KB Output is correct
17 Correct 13 ms 1368 KB Output is correct
18 Correct 16 ms 1624 KB Output is correct
19 Correct 2702 ms 57916 KB Output is correct
20 Correct 2545 ms 60372 KB Output is correct
21 Correct 2704 ms 60476 KB Output is correct
22 Correct 2661 ms 60544 KB Output is correct
23 Correct 2689 ms 60356 KB Output is correct
24 Correct 1293 ms 60048 KB Output is correct
25 Correct 1291 ms 60000 KB Output is correct
26 Correct 1430 ms 60636 KB Output is correct
27 Correct 1456 ms 60648 KB Output is correct
28 Correct 1658 ms 60184 KB Output is correct
29 Correct 1461 ms 60488 KB Output is correct
30 Correct 1473 ms 60348 KB Output is correct
31 Correct 1513 ms 60280 KB Output is correct
32 Correct 1445 ms 60360 KB Output is correct
33 Correct 1461 ms 60376 KB Output is correct
34 Correct 1371 ms 60132 KB Output is correct
35 Correct 1348 ms 59948 KB Output is correct
36 Correct 1437 ms 59672 KB Output is correct
37 Correct 1370 ms 59744 KB Output is correct
38 Correct 1351 ms 60000 KB Output is correct
39 Correct 1379 ms 58824 KB Output is correct
40 Correct 818 ms 37836 KB Output is correct
41 Correct 1154 ms 58468 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 1 ms 500 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 14 ms 860 KB Output is correct
12 Correct 14 ms 1628 KB Output is correct
13 Correct 16 ms 1628 KB Output is correct
14 Correct 25 ms 1884 KB Output is correct
15 Correct 28 ms 1884 KB Output is correct
16 Correct 20 ms 1628 KB Output is correct
17 Correct 13 ms 1368 KB Output is correct
18 Correct 16 ms 1624 KB Output is correct
19 Runtime error 421 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -