oj.uz

Submission #753114

# Submission time Handle Problem Language Result Execution time Memory
753114 2023-06-04T16:10:35 Z minhnhatnoe Pilot (NOI19_pilot) C++14
100 / 100
 539 ms 48344 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll cpair(ll s){
    return s * (s+1) / 2;
}
struct dsu{
    ll c = 0;
    vector<int> p;
    vector<bool> s;
    dsu(int n): p(n, -1), s(n) {}
    int find(int v){
        if (p[v] < 0) return v;
        return p[v] = find(p[v]);
    }
    void merge(int a, int b){
        a = find(a), b = find(b);
        if (a == b) return;
        if (-p[a] < -p[b]) swap(a, b);
        c -= cpair(-p[a]) + cpair(-p[b]);
        p[a] += p[b];
        c += cpair(-p[a]);
        p[b] = a;
    }
    void activate(int pos){
        c += 1;
        s[pos] = true;
        if (pos && s[pos-1]){
            merge(pos, pos-1);
        }
        if (pos != s.size()-1 && s[pos+1]){
            merge(pos, pos+1);
        }
    }
};

signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int n, q; cin >> n >> q;
    dsu g(n);
    vector<pair<int, int>> a(n), b(q);
    for (int i=0; i<n; i++){
        cin >> a[i].first;
        a[i].second = i;
    }
    for (int i=0; i<q; i++){
        cin >> b[i].first;
        b[i].second = i;
    }
    vector<ll> result(q);
    sort(a.begin(), a.end()), sort(b.begin(), b.end());
    int aptr = 0;
    for (int i=0; i<b.size(); i++){
        while (aptr < a.size() && a[aptr].first <= b[i].first){
            g.activate(a[aptr].second);
            aptr++;
        }
        result[b[i].second] = g.c;
    }
    for (int i=0; i<result.size(); i++){
        cout << result[i] << "\n";
    }
}

Compilation message

pilot.cpp: In member function 'void dsu::activate(int)':
pilot.cpp:32:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         if (pos != s.size()-1 && s[pos+1]){
      |             ~~~~^~~~~~~~~~~~~
pilot.cpp: In function 'int main()':
pilot.cpp:54:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for (int i=0; i<b.size(); i++){
      |                   ~^~~~~~~~~
pilot.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         while (aptr < a.size() && a[aptr].first <= b[i].first){
      |                ~~~~~^~~~~~~~~~
pilot.cpp:61:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |     for (int i=0; i<result.size(); i++){
      |                   ~^~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

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

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1364 KB Output is correct
2 Correct 25 ms 1492 KB Output is correct
3 Correct 18 ms 1364 KB Output is correct
4 Correct 17 ms 1396 KB Output is correct
5 Correct 19 ms 1364 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 3768 KB Output is correct
2 Correct 33 ms 3860 KB Output is correct
3 Correct 38 ms 3792 KB Output is correct
4 Correct 42 ms 3848 KB Output is correct
5 Correct 42 ms 3788 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 3776 KB Output is correct
2 Correct 35 ms 3796 KB Output is correct
3 Correct 37 ms 3900 KB Output is correct
4 Correct 37 ms 3788 KB Output is correct
5 Correct 35 ms 3916 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 19 ms 1364 KB Output is correct
12 Correct 25 ms 1492 KB Output is correct
13 Correct 18 ms 1364 KB Output is correct
14 Correct 17 ms 1396 KB Output is correct
15 Correct 19 ms 1364 KB Output is correct
16 Correct 16 ms 1364 KB Output is correct
17 Correct 16 ms 1492 KB Output is correct
18 Correct 16 ms 1492 KB Output is correct
19 Correct 16 ms 1364 KB Output is correct
20 Correct 17 ms 1364 KB Output is correct
21 Correct 20 ms 1364 KB Output is correct
22 Correct 21 ms 1428 KB Output is correct
23 Correct 17 ms 1492 KB Output is correct
24 Correct 15 ms 1420 KB Output is correct
25 Correct 17 ms 1364 KB Output is correct

Subtask #9
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 19 ms 1364 KB Output is correct
27 Correct 25 ms 1492 KB Output is correct
28 Correct 18 ms 1364 KB Output is correct
29 Correct 17 ms 1396 KB Output is correct
30 Correct 19 ms 1364 KB Output is correct
31 Correct 34 ms 3768 KB Output is correct
32 Correct 33 ms 3860 KB Output is correct
33 Correct 38 ms 3792 KB Output is correct
34 Correct 42 ms 3848 KB Output is correct
35 Correct 42 ms 3788 KB Output is correct
36 Correct 37 ms 3776 KB Output is correct
37 Correct 35 ms 3796 KB Output is correct
38 Correct 37 ms 3900 KB Output is correct
39 Correct 37 ms 3788 KB Output is correct
40 Correct 35 ms 3916 KB Output is correct
41 Correct 16 ms 1364 KB Output is correct
42 Correct 16 ms 1492 KB Output is correct
43 Correct 16 ms 1492 KB Output is correct
44 Correct 16 ms 1364 KB Output is correct
45 Correct 17 ms 1364 KB Output is correct
46 Correct 20 ms 1364 KB Output is correct
47 Correct 21 ms 1428 KB Output is correct
48 Correct 17 ms 1492 KB Output is correct
49 Correct 15 ms 1420 KB Output is correct
50 Correct 17 ms 1364 KB Output is correct
51 Correct 42 ms 3740 KB Output is correct
52 Correct 45 ms 3616 KB Output is correct
53 Correct 48 ms 3772 KB Output is correct
54 Correct 41 ms 3528 KB Output is correct
55 Correct 42 ms 3640 KB Output is correct

Subtask #10
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 19 ms 1364 KB Output is correct
27 Correct 25 ms 1492 KB Output is correct
28 Correct 18 ms 1364 KB Output is correct
29 Correct 17 ms 1396 KB Output is correct
30 Correct 19 ms 1364 KB Output is correct
31 Correct 34 ms 3768 KB Output is correct
32 Correct 33 ms 3860 KB Output is correct
33 Correct 38 ms 3792 KB Output is correct
34 Correct 42 ms 3848 KB Output is correct
35 Correct 42 ms 3788 KB Output is correct
36 Correct 37 ms 3776 KB Output is correct
37 Correct 35 ms 3796 KB Output is correct
38 Correct 37 ms 3900 KB Output is correct
39 Correct 37 ms 3788 KB Output is correct
40 Correct 35 ms 3916 KB Output is correct
41 Correct 16 ms 1364 KB Output is correct
42 Correct 16 ms 1492 KB Output is correct
43 Correct 16 ms 1492 KB Output is correct
44 Correct 16 ms 1364 KB Output is correct
45 Correct 17 ms 1364 KB Output is correct
46 Correct 20 ms 1364 KB Output is correct
47 Correct 21 ms 1428 KB Output is correct
48 Correct 17 ms 1492 KB Output is correct
49 Correct 15 ms 1420 KB Output is correct
50 Correct 17 ms 1364 KB Output is correct
51 Correct 42 ms 3740 KB Output is correct
52 Correct 45 ms 3616 KB Output is correct
53 Correct 48 ms 3772 KB Output is correct
54 Correct 41 ms 3528 KB Output is correct
55 Correct 42 ms 3640 KB Output is correct
56 Correct 489 ms 34484 KB Output is correct
57 Correct 492 ms 46796 KB Output is correct
58 Correct 473 ms 44512 KB Output is correct
59 Correct 456 ms 45384 KB Output is correct
60 Correct 539 ms 48344 KB Output is correct