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Submission #1047130

# Submission time Handle Problem Language Result Execution time Memory
1047130 2024-08-07T09:10:59 Z vjudge1 Index (COCI21_index) C++17
110 / 110
 2356 ms 47224 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;


int n, q, a, b, minans, maxans, midans;
vector<vector<int>> tree;


void addtotree(int x, int val, int node, int nodel, int noder){
    if (x < nodel || noder <= x) return;
    if (nodel <= x && x < noder) tree[node].push_back(val);
    if (noder - nodel == 1) return;
    addtotree(x, val, 2 * node + 1, nodel, (nodel + noder) / 2);
    addtotree(x, val, 2 * node + 2, (nodel + noder) / 2, noder);
}


int greatercount(int l, int r, int val, int node, int nodel, int noder){
    if (r <= nodel || noder <= l || tree[node][tree[node].size() - 1] < val) return 0;
    if (l <= nodel && noder <= r){
        int mini = 0, maxi = noder - nodel - 1, midi;
        while (mini != maxi){
            midi = (mini + maxi) / 2;
            if (val <= tree[node][midi]) maxi = midi;
            else mini = midi + 1;
        }
        return noder - nodel - mini;
    }
    return greatercount(l, r, val, 2 * node + 1, nodel, (nodel + noder) / 2) + greatercount(l, r, val, 2 * node + 2, (nodel + noder) / 2, noder);
}


int main(){
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    cin >> n >> q;
    tree.resize(4 * n);
    for (int i = 0; i < n; i++){
        cin >> a;
        addtotree(i, a, 0, 0, n);
    }
    for (int i = 0; i < 4 * n; i++) sort(tree[i].begin(), tree[i].end());
    while (q--){
        cin >> a >> b;
        minans = 1;
        maxans = n;
        while (minans != maxans){
            midans = (minans + maxans + 1) / 2;
            if (midans <= greatercount(a - 1, b, midans, 0, 0, n)) minans = midans;
            else maxans = midans - 1;
        }
        cout << minans << '\n';
    }
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 600 KB Output is correct
2 Correct 3 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 600 KB Output is correct
2 Correct 3 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 380 ms 11728 KB Output is correct
12 Correct 375 ms 11680 KB Output is correct
13 Correct 401 ms 11740 KB Output is correct
14 Correct 368 ms 11724 KB Output is correct
15 Correct 406 ms 11724 KB Output is correct
16 Correct 372 ms 11688 KB Output is correct
17 Correct 424 ms 11728 KB Output is correct
18 Correct 377 ms 11728 KB Output is correct
19 Correct 372 ms 11728 KB Output is correct
20 Correct 389 ms 11664 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 600 KB Output is correct
2 Correct 3 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 380 ms 11728 KB Output is correct
12 Correct 375 ms 11680 KB Output is correct
13 Correct 401 ms 11740 KB Output is correct
14 Correct 368 ms 11724 KB Output is correct
15 Correct 406 ms 11724 KB Output is correct
16 Correct 372 ms 11688 KB Output is correct
17 Correct 424 ms 11728 KB Output is correct
18 Correct 377 ms 11728 KB Output is correct
19 Correct 372 ms 11728 KB Output is correct
20 Correct 389 ms 11664 KB Output is correct
21 Correct 2295 ms 47224 KB Output is correct
22 Correct 2278 ms 47020 KB Output is correct
23 Correct 2276 ms 47212 KB Output is correct
24 Correct 2278 ms 47148 KB Output is correct
25 Correct 2356 ms 47020 KB Output is correct
26 Correct 2275 ms 47204 KB Output is correct
27 Correct 2234 ms 47032 KB Output is correct
28 Correct 2202 ms 47016 KB Output is correct
29 Correct 2192 ms 47092 KB Output is correct
30 Correct 2255 ms 47056 KB Output is correct