oj.uz

답안 #601280

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
601280 2022-07-21T14:51:55 Z lordlorinc Event Hopping 2 (JOI21_event2) C++17
100 / 100
 254 ms 22156 KB 
#include <bits/stdc++.h>

using namespace std;

vector<pair<pair<int, int>, int> > sor, sor2;
vector<vector<int> > tabla;

set<pair<pair<int, int>, int> > ck;

int maxDb(int l, int r){
    
    int pos = lower_bound(sor.begin(), sor.end(), make_pair(make_pair(l, 1000000003), -1)) - sor.begin() - 1;
    
    int res = 0;
    for (int i = tabla[0].size() - 1; i >= 0; i--){
        if (tabla[pos][i] == -1) continue;
        if (sor[tabla[pos][i]].first.first <= r){
            pos = tabla[pos][i];
            res += (1 << i);
        }
    }
    // cout << l << " " << r << " " << res << endl;
    return res;
}

int main(){

    int n, m;
    cin >> n >> m;

    sor.resize(n + 2);

    for (int i = 0; i < n; i++){
        cin >> sor[i].first.second >> sor[i].first.first;
        sor[i].second = i + 1;
    }
    sor[n] = make_pair(make_pair(0, -1), 0);
    sor[n + 1] = make_pair(make_pair(1e9+2, 1e9+1), n + 1);
    n += 2;
    tabla.assign(n, vector<int>(log2(n + 1) + 1, -1));

    sor2 = sor;
    sort(sor.begin(), sor.end());
    int ind = 0;
    for (int i = 0; i < n; i++){
        
        while (ind < i && sor[ind].first.first <= sor[i].first.second){
            tabla[ind][0] = i;
            ind++;
        }
        // cout << i << " " << ind << endl;
        // cout << sor[i].first.first << " " << sor[i].first.second << " " << sor[i].second << endl;
    }

    for (int i = 1; i < tabla[0].size(); i++){
        for (int j = 0; j < n; j++){
            if (tabla[j][i - 1] == -1) continue;
            tabla[j][i] = tabla[tabla[j][i - 1]][i - 1];
        }
    }

    // for (int i = 0; i < tabla[0].size(); i++){
    //     for (int j = 0; j < n; j++){
    //         cout << tabla[j][i] << " ";
    //     }
    //     cout << endl;
    // }

    ck.insert(make_pair(make_pair(0, -1), 0));
    ck.insert(make_pair(make_pair(1e9+2, 1e9+1), n + 1));
    int db = maxDb(0, 1e9);

    if (db < m){
        cout << -1 << endl;
        return 0;
    }

    // cout << db << endl;

    for (int i = 0; i < n - 2; i++){
        // if (ck.size() == m + 2) break;
        auto pos = ck.upper_bound(make_pair(make_pair(sor2[i].first.first, -2), -1));
        if (pos -> first.second < sor2[i].first.first){
            continue;
        }
        int r = pos -> first.second;
        pos--;
        if (pos -> first.first > sor2[i].first.second){
            continue;
        }
        int l = pos -> first.first;
        // cout << i << ": " << l << " " << r << endl;
        // cout << maxDb(l, r) << " " << maxDb(l, sor[i].first.second) << " " << maxDb(sor[i].first.first, r) << endl;
        if (db - maxDb(l, r) + maxDb(l, sor2[i].first.second) + maxDb(sor2[i].first.first, r) + 1 >= m){
            db = db - maxDb(l, r) + maxDb(l, sor2[i].first.second) + maxDb(sor2[i].first.first, r) + 1;
            ck.insert(sor2[i]);
        }
    }

    vector<int> mo;
    for (auto x : ck){
        mo.push_back(x.second);
    }

    sort(mo.begin(), mo.end());
    for (int i = 1; i <= m; i++){
        cout << mo[i] << '\n';
    }

    return 0;
}

/*

5 4
1 3
2 5
8 9
6 8
10 15
*/

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for (int i = 1; i < tabla[0].size(); i++){
      |                     ~~^~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 223 ms 19636 KB Output is correct
5 Correct 180 ms 21544 KB Output is correct
6 Correct 181 ms 21432 KB Output is correct
7 Correct 195 ms 21424 KB Output is correct
8 Correct 201 ms 21532 KB Output is correct
9 Correct 181 ms 21680 KB Output is correct
10 Correct 205 ms 21452 KB Output is correct
11 Correct 182 ms 21428 KB Output is correct
12 Correct 155 ms 18924 KB Output is correct
13 Correct 160 ms 18980 KB Output is correct
14 Correct 163 ms 18992 KB Output is correct
15 Correct 157 ms 18892 KB Output is correct
16 Correct 130 ms 15708 KB Output is correct
17 Correct 130 ms 15560 KB Output is correct
18 Correct 119 ms 15528 KB Output is correct
19 Correct 106 ms 14900 KB Output is correct
20 Correct 109 ms 14764 KB Output is correct
21 Correct 126 ms 14844 KB Output is correct
22 Correct 101 ms 14772 KB Output is correct
23 Correct 100 ms 14756 KB Output is correct
24 Correct 102 ms 14668 KB Output is correct
25 Correct 109 ms 14760 KB Output is correct
26 Correct 106 ms 14648 KB Output is correct
27 Correct 101 ms 14752 KB Output is correct
28 Correct 99 ms 14744 KB Output is correct
29 Correct 102 ms 14632 KB Output is correct
30 Correct 105 ms 14668 KB Output is correct
31 Correct 110 ms 14640 KB Output is correct
32 Correct 102 ms 14772 KB Output is correct
33 Correct 100 ms 14764 KB Output is correct
34 Correct 150 ms 18848 KB Output is correct
35 Correct 169 ms 18740 KB Output is correct
36 Correct 150 ms 18616 KB Output is correct
37 Correct 150 ms 18468 KB Output is correct
38 Correct 166 ms 18428 KB Output is correct
39 Correct 162 ms 18476 KB Output is correct
40 Correct 149 ms 18384 KB Output is correct
41 Correct 156 ms 18348 KB Output is correct
42 Correct 129 ms 14872 KB Output is correct
43 Correct 154 ms 18352 KB Output is correct
44 Correct 153 ms 18196 KB Output is correct
45 Correct 160 ms 17940 KB Output is correct
46 Correct 163 ms 17828 KB Output is correct

Subtask #2
1.0 / 1.0

# 결과 실행 시간 메모리 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 1 ms 212 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 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 300 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 296 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 300 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 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 1 ms 212 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 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 300 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 296 KB Output is correct
22 Correct 1 ms 300 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 300 KB Output is correct
28 Correct 4 ms 596 KB Output is correct
29 Correct 4 ms 564 KB Output is correct
30 Correct 3 ms 596 KB Output is correct
31 Correct 3 ms 564 KB Output is correct
32 Correct 4 ms 560 KB Output is correct
33 Correct 3 ms 596 KB Output is correct
34 Correct 4 ms 640 KB Output is correct
35 Correct 6 ms 852 KB Output is correct
36 Correct 6 ms 852 KB Output is correct
37 Correct 7 ms 876 KB Output is correct
38 Correct 5 ms 636 KB Output is correct
39 Correct 6 ms 852 KB Output is correct
40 Correct 5 ms 776 KB Output is correct
41 Correct 6 ms 812 KB Output is correct
42 Correct 5 ms 596 KB Output is correct
43 Correct 5 ms 724 KB Output is correct
44 Correct 5 ms 724 KB Output is correct
45 Correct 5 ms 724 KB Output is correct
46 Correct 3 ms 596 KB Output is correct
47 Correct 4 ms 692 KB Output is correct
48 Correct 4 ms 596 KB Output is correct
49 Correct 4 ms 648 KB Output is correct
50 Correct 3 ms 596 KB Output is correct
51 Correct 4 ms 568 KB Output is correct
52 Correct 3 ms 648 KB Output is correct
53 Correct 3 ms 596 KB Output is correct
54 Correct 4 ms 564 KB Output is correct
55 Correct 5 ms 852 KB Output is correct
56 Correct 6 ms 852 KB Output is correct
57 Correct 7 ms 824 KB Output is correct
58 Correct 6 ms 852 KB Output is correct
59 Correct 5 ms 852 KB Output is correct
60 Correct 6 ms 852 KB Output is correct
61 Correct 5 ms 852 KB Output is correct
62 Correct 5 ms 904 KB Output is correct
63 Correct 5 ms 852 KB Output is correct
64 Correct 3 ms 652 KB Output is correct

Subtask #4
61.0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 223 ms 19636 KB Output is correct
5 Correct 180 ms 21544 KB Output is correct
6 Correct 181 ms 21432 KB Output is correct
7 Correct 195 ms 21424 KB Output is correct
8 Correct 201 ms 21532 KB Output is correct
9 Correct 181 ms 21680 KB Output is correct
10 Correct 205 ms 21452 KB Output is correct
11 Correct 182 ms 21428 KB Output is correct
12 Correct 155 ms 18924 KB Output is correct
13 Correct 160 ms 18980 KB Output is correct
14 Correct 163 ms 18992 KB Output is correct
15 Correct 157 ms 18892 KB Output is correct
16 Correct 130 ms 15708 KB Output is correct
17 Correct 130 ms 15560 KB Output is correct
18 Correct 119 ms 15528 KB Output is correct
19 Correct 106 ms 14900 KB Output is correct
20 Correct 109 ms 14764 KB Output is correct
21 Correct 126 ms 14844 KB Output is correct
22 Correct 101 ms 14772 KB Output is correct
23 Correct 100 ms 14756 KB Output is correct
24 Correct 102 ms 14668 KB Output is correct
25 Correct 109 ms 14760 KB Output is correct
26 Correct 106 ms 14648 KB Output is correct
27 Correct 101 ms 14752 KB Output is correct
28 Correct 99 ms 14744 KB Output is correct
29 Correct 102 ms 14632 KB Output is correct
30 Correct 105 ms 14668 KB Output is correct
31 Correct 110 ms 14640 KB Output is correct
32 Correct 102 ms 14772 KB Output is correct
33 Correct 100 ms 14764 KB Output is correct
34 Correct 150 ms 18848 KB Output is correct
35 Correct 169 ms 18740 KB Output is correct
36 Correct 150 ms 18616 KB Output is correct
37 Correct 150 ms 18468 KB Output is correct
38 Correct 166 ms 18428 KB Output is correct
39 Correct 162 ms 18476 KB Output is correct
40 Correct 149 ms 18384 KB Output is correct
41 Correct 156 ms 18348 KB Output is correct
42 Correct 129 ms 14872 KB Output is correct
43 Correct 154 ms 18352 KB Output is correct
44 Correct 153 ms 18196 KB Output is correct
45 Correct 160 ms 17940 KB Output is correct
46 Correct 163 ms 17828 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 292 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 296 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 300 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 300 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 1 ms 212 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 1 ms 300 KB Output is correct
66 Correct 1 ms 296 KB Output is correct
67 Correct 1 ms 296 KB Output is correct
68 Correct 1 ms 300 KB Output is correct
69 Correct 1 ms 212 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 1 ms 300 KB Output is correct
74 Correct 4 ms 596 KB Output is correct
75 Correct 4 ms 564 KB Output is correct
76 Correct 3 ms 596 KB Output is correct
77 Correct 3 ms 564 KB Output is correct
78 Correct 4 ms 560 KB Output is correct
79 Correct 3 ms 596 KB Output is correct
80 Correct 4 ms 640 KB Output is correct
81 Correct 6 ms 852 KB Output is correct
82 Correct 6 ms 852 KB Output is correct
83 Correct 7 ms 876 KB Output is correct
84 Correct 5 ms 636 KB Output is correct
85 Correct 6 ms 852 KB Output is correct
86 Correct 5 ms 776 KB Output is correct
87 Correct 6 ms 812 KB Output is correct
88 Correct 5 ms 596 KB Output is correct
89 Correct 5 ms 724 KB Output is correct
90 Correct 5 ms 724 KB Output is correct
91 Correct 5 ms 724 KB Output is correct
92 Correct 3 ms 596 KB Output is correct
93 Correct 4 ms 692 KB Output is correct
94 Correct 4 ms 596 KB Output is correct
95 Correct 4 ms 648 KB Output is correct
96 Correct 3 ms 596 KB Output is correct
97 Correct 4 ms 568 KB Output is correct
98 Correct 3 ms 648 KB Output is correct
99 Correct 3 ms 596 KB Output is correct
100 Correct 4 ms 564 KB Output is correct
101 Correct 5 ms 852 KB Output is correct
102 Correct 6 ms 852 KB Output is correct
103 Correct 7 ms 824 KB Output is correct
104 Correct 6 ms 852 KB Output is correct
105 Correct 5 ms 852 KB Output is correct
106 Correct 6 ms 852 KB Output is correct
107 Correct 5 ms 852 KB Output is correct
108 Correct 5 ms 904 KB Output is correct
109 Correct 5 ms 852 KB Output is correct
110 Correct 3 ms 652 KB Output is correct
111 Correct 114 ms 14760 KB Output is correct
112 Correct 124 ms 14764 KB Output is correct
113 Correct 121 ms 14760 KB Output is correct
114 Correct 106 ms 14764 KB Output is correct
115 Correct 124 ms 14744 KB Output is correct
116 Correct 104 ms 14648 KB Output is correct
117 Correct 112 ms 14636 KB Output is correct
118 Correct 254 ms 21644 KB Output is correct
119 Correct 250 ms 21544 KB Output is correct
120 Correct 217 ms 18732 KB Output is correct
121 Correct 114 ms 14764 KB Output is correct
122 Correct 223 ms 18976 KB Output is correct
123 Correct 233 ms 18720 KB Output is correct
124 Correct 211 ms 18820 KB Output is correct
125 Correct 110 ms 14668 KB Output is correct
126 Correct 145 ms 15692 KB Output is correct
127 Correct 142 ms 15536 KB Output is correct
128 Correct 150 ms 15528 KB Output is correct
129 Correct 113 ms 14632 KB Output is correct
130 Correct 122 ms 14760 KB Output is correct
131 Correct 123 ms 14796 KB Output is correct
132 Correct 115 ms 14800 KB Output is correct
133 Correct 107 ms 14636 KB Output is correct
134 Correct 126 ms 14756 KB Output is correct
135 Correct 107 ms 14760 KB Output is correct
136 Correct 109 ms 14880 KB Output is correct
137 Correct 102 ms 14628 KB Output is correct
138 Correct 127 ms 14756 KB Output is correct
139 Correct 117 ms 14764 KB Output is correct
140 Correct 107 ms 14800 KB Output is correct
141 Correct 100 ms 14768 KB Output is correct
142 Correct 196 ms 22056 KB Output is correct
143 Correct 190 ms 22088 KB Output is correct
144 Correct 188 ms 22156 KB Output is correct
145 Correct 203 ms 22060 KB Output is correct
146 Correct 167 ms 22000 KB Output is correct
147 Correct 179 ms 21916 KB Output is correct
148 Correct 164 ms 22004 KB Output is correct
149 Correct 192 ms 21924 KB Output is correct
150 Correct 172 ms 21924 KB Output is correct
151 Correct 174 ms 21916 KB Output is correct
152 Correct 103 ms 14644 KB Output is correct
153 Correct 172 ms 22052 KB Output is correct
154 Correct 186 ms 22052 KB Output is correct
155 Correct 174 ms 22044 KB Output is correct
156 Correct 166 ms 21932 KB Output is correct
157 Correct 184 ms 21924 KB Output is correct
158 Correct 182 ms 21924 KB Output is correct
159 Correct 167 ms 21884 KB Output is correct
160 Correct 100 ms 14764 KB Output is correct
161 Correct 222 ms 18384 KB Output is correct
162 Correct 185 ms 18464 KB Output is correct
163 Correct 204 ms 18360 KB Output is correct
164 Correct 203 ms 18360 KB Output is correct
165 Correct 186 ms 18392 KB Output is correct
166 Correct 111 ms 14668 KB Output is correct
167 Correct 161 ms 18248 KB Output is correct
168 Correct 149 ms 18100 KB Output is correct
169 Correct 147 ms 18036 KB Output is correct
170 Correct 156 ms 17868 KB Output is correct
171 Correct 130 ms 17804 KB Output is correct
172 Correct 150 ms 18436 KB Output is correct
173 Correct 211 ms 18484 KB Output is correct
174 Correct 213 ms 18476 KB Output is correct
175 Correct 209 ms 18340 KB Output is correct
176 Correct 193 ms 17976 KB Output is correct