oj.uz

답안 #756775

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
756775 2023-06-12T07:43:04 Z Dan4Life Event Hopping 2 (JOI21_event2) C++17
100 / 100
 179 ms 22728 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
const int mxN = (int)2e5+10;
const int mxLg = 20;
int n, k;
vector<int> v;
int L[mxN], R[mxN];
int jmp[mxLg][mxN*2];
set<pair<int,int>> S;

int get(int l, int r){
    int tot = 0;
    for(int i = mxLg-1; i>=0; i--)
        if(jmp[i][l]<=r) l=jmp[i][l], tot+=(1<<i);
    return tot;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n >> k;
    for(int i = 1; i <= n; i++)
        cin >> L[i] >> R[i], v.pb(L[i]), v.pb(R[i]);
    sort(all(v)); v.erase(unique(all(v)),end(v));
    for(int i = 0; i <= sz(v); i++) jmp[0][i]=sz(v);
    for(int i = 1; i <= n; i++){
        L[i] = lower_bound(all(v),L[i])-begin(v);
        R[i] = lower_bound(all(v),R[i])-begin(v);
        jmp[0][L[i]] = min(jmp[0][L[i]],R[i]);
    }
    for(int i = sz(v)-1; i>=0; i--)
        jmp[0][i]=min(jmp[0][i],jmp[0][i+1]);
    for(int i = 1; i < mxLg; i++)
        for(int j = 0; j <= sz(v); j++)
            jmp[i][j] = jmp[i-1][jmp[i-1][j]];
    int tot = get(0,sz(v)-1); if(tot<k){cout<<-1;return 0;}
    S.insert({0,0}), S.insert({sz(v)-1,sz(v)-1});
    for(int i = 1; i <= n; i++){
        auto itr = S.lower_bound({R[i],0});
        int r = itr->first, l = (--itr)->second;
        int num = tot-get(l,r)+get(l,L[i])+get(R[i],r)+1;
        if(L[i]>=l and num>=k){
            cout << i << "\n"; tot=num;
            S.insert({L[i],R[i]});
            if(sz(S)==k+2) break;
        }
    }
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 99 ms 22652 KB Output is correct
5 Correct 103 ms 22364 KB Output is correct
6 Correct 100 ms 22136 KB Output is correct
7 Correct 89 ms 21692 KB Output is correct
8 Correct 100 ms 22672 KB Output is correct
9 Correct 97 ms 22340 KB Output is correct
10 Correct 102 ms 22120 KB Output is correct
11 Correct 90 ms 21632 KB Output is correct
12 Correct 87 ms 20744 KB Output is correct
13 Correct 82 ms 20552 KB Output is correct
14 Correct 97 ms 20496 KB Output is correct
15 Correct 78 ms 20164 KB Output is correct
16 Correct 76 ms 18444 KB Output is correct
17 Correct 72 ms 18300 KB Output is correct
18 Correct 83 ms 18228 KB Output is correct
19 Correct 59 ms 17900 KB Output is correct
20 Correct 63 ms 17900 KB Output is correct
21 Correct 59 ms 17848 KB Output is correct
22 Correct 63 ms 17860 KB Output is correct
23 Correct 69 ms 17864 KB Output is correct
24 Correct 62 ms 17784 KB Output is correct
25 Correct 68 ms 17816 KB Output is correct
26 Correct 67 ms 17884 KB Output is correct
27 Correct 65 ms 17916 KB Output is correct
28 Correct 43 ms 17788 KB Output is correct
29 Correct 46 ms 17880 KB Output is correct
30 Correct 45 ms 17788 KB Output is correct
31 Correct 52 ms 17788 KB Output is correct
32 Correct 60 ms 17900 KB Output is correct
33 Correct 54 ms 17788 KB Output is correct
34 Correct 105 ms 19600 KB Output is correct
35 Correct 59 ms 18888 KB Output is correct
36 Correct 54 ms 18296 KB Output is correct
37 Correct 109 ms 20348 KB Output is correct
38 Correct 81 ms 20296 KB Output is correct
39 Correct 81 ms 20292 KB Output is correct
40 Correct 83 ms 20224 KB Output is correct
41 Correct 79 ms 19960 KB Output is correct
42 Correct 55 ms 17804 KB Output is correct
43 Correct 95 ms 20200 KB Output is correct
44 Correct 93 ms 20148 KB Output is correct
45 Correct 95 ms 20080 KB Output is correct
46 Correct 98 ms 19936 KB Output is correct

Subtask #2
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 0 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 3 ms 980 KB Output is correct
29 Correct 3 ms 980 KB Output is correct
30 Correct 3 ms 1028 KB Output is correct
31 Correct 3 ms 980 KB Output is correct
32 Correct 3 ms 980 KB Output is correct
33 Correct 2 ms 980 KB Output is correct
34 Correct 2 ms 980 KB Output is correct
35 Correct 3 ms 1108 KB Output is correct
36 Correct 5 ms 1108 KB Output is correct
37 Correct 3 ms 980 KB Output is correct
38 Correct 2 ms 980 KB Output is correct
39 Correct 4 ms 1108 KB Output is correct
40 Correct 5 ms 1112 KB Output is correct
41 Correct 4 ms 980 KB Output is correct
42 Correct 2 ms 980 KB Output is correct
43 Correct 3 ms 980 KB Output is correct
44 Correct 3 ms 980 KB Output is correct
45 Correct 3 ms 980 KB Output is correct
46 Correct 2 ms 980 KB Output is correct
47 Correct 3 ms 980 KB Output is correct
48 Correct 3 ms 980 KB Output is correct
49 Correct 3 ms 980 KB Output is correct
50 Correct 2 ms 980 KB Output is correct
51 Correct 3 ms 980 KB Output is correct
52 Correct 3 ms 980 KB Output is correct
53 Correct 4 ms 980 KB Output is correct
54 Correct 2 ms 980 KB Output is correct
55 Correct 3 ms 852 KB Output is correct
56 Correct 3 ms 852 KB Output is correct
57 Correct 3 ms 852 KB Output is correct
58 Correct 3 ms 852 KB Output is correct
59 Correct 2 ms 852 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 3 ms 852 KB Output is correct
62 Correct 3 ms 852 KB Output is correct
63 Correct 3 ms 852 KB Output is correct
64 Correct 1 ms 724 KB Output is correct

Subtask #4
61.0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 99 ms 22652 KB Output is correct
5 Correct 103 ms 22364 KB Output is correct
6 Correct 100 ms 22136 KB Output is correct
7 Correct 89 ms 21692 KB Output is correct
8 Correct 100 ms 22672 KB Output is correct
9 Correct 97 ms 22340 KB Output is correct
10 Correct 102 ms 22120 KB Output is correct
11 Correct 90 ms 21632 KB Output is correct
12 Correct 87 ms 20744 KB Output is correct
13 Correct 82 ms 20552 KB Output is correct
14 Correct 97 ms 20496 KB Output is correct
15 Correct 78 ms 20164 KB Output is correct
16 Correct 76 ms 18444 KB Output is correct
17 Correct 72 ms 18300 KB Output is correct
18 Correct 83 ms 18228 KB Output is correct
19 Correct 59 ms 17900 KB Output is correct
20 Correct 63 ms 17900 KB Output is correct
21 Correct 59 ms 17848 KB Output is correct
22 Correct 63 ms 17860 KB Output is correct
23 Correct 69 ms 17864 KB Output is correct
24 Correct 62 ms 17784 KB Output is correct
25 Correct 68 ms 17816 KB Output is correct
26 Correct 67 ms 17884 KB Output is correct
27 Correct 65 ms 17916 KB Output is correct
28 Correct 43 ms 17788 KB Output is correct
29 Correct 46 ms 17880 KB Output is correct
30 Correct 45 ms 17788 KB Output is correct
31 Correct 52 ms 17788 KB Output is correct
32 Correct 60 ms 17900 KB Output is correct
33 Correct 54 ms 17788 KB Output is correct
34 Correct 105 ms 19600 KB Output is correct
35 Correct 59 ms 18888 KB Output is correct
36 Correct 54 ms 18296 KB Output is correct
37 Correct 109 ms 20348 KB Output is correct
38 Correct 81 ms 20296 KB Output is correct
39 Correct 81 ms 20292 KB Output is correct
40 Correct 83 ms 20224 KB Output is correct
41 Correct 79 ms 19960 KB Output is correct
42 Correct 55 ms 17804 KB Output is correct
43 Correct 95 ms 20200 KB Output is correct
44 Correct 93 ms 20148 KB Output is correct
45 Correct 95 ms 20080 KB Output is correct
46 Correct 98 ms 19936 KB Output is correct
47 Correct 1 ms 512 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 0 ms 468 KB Output is correct
50 Correct 0 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 1 ms 468 KB Output is correct
55 Correct 1 ms 468 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 468 KB Output is correct
58 Correct 1 ms 468 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 0 ms 468 KB Output is correct
61 Correct 1 ms 468 KB Output is correct
62 Correct 1 ms 468 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 1 ms 468 KB Output is correct
65 Correct 0 ms 468 KB Output is correct
66 Correct 0 ms 468 KB Output is correct
67 Correct 1 ms 468 KB Output is correct
68 Correct 1 ms 468 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 1 ms 468 KB Output is correct
71 Correct 1 ms 468 KB Output is correct
72 Correct 1 ms 468 KB Output is correct
73 Correct 1 ms 468 KB Output is correct
74 Correct 3 ms 980 KB Output is correct
75 Correct 3 ms 980 KB Output is correct
76 Correct 3 ms 1028 KB Output is correct
77 Correct 3 ms 980 KB Output is correct
78 Correct 3 ms 980 KB Output is correct
79 Correct 2 ms 980 KB Output is correct
80 Correct 2 ms 980 KB Output is correct
81 Correct 3 ms 1108 KB Output is correct
82 Correct 5 ms 1108 KB Output is correct
83 Correct 3 ms 980 KB Output is correct
84 Correct 2 ms 980 KB Output is correct
85 Correct 4 ms 1108 KB Output is correct
86 Correct 5 ms 1112 KB Output is correct
87 Correct 4 ms 980 KB Output is correct
88 Correct 2 ms 980 KB Output is correct
89 Correct 3 ms 980 KB Output is correct
90 Correct 3 ms 980 KB Output is correct
91 Correct 3 ms 980 KB Output is correct
92 Correct 2 ms 980 KB Output is correct
93 Correct 3 ms 980 KB Output is correct
94 Correct 3 ms 980 KB Output is correct
95 Correct 3 ms 980 KB Output is correct
96 Correct 2 ms 980 KB Output is correct
97 Correct 3 ms 980 KB Output is correct
98 Correct 3 ms 980 KB Output is correct
99 Correct 4 ms 980 KB Output is correct
100 Correct 2 ms 980 KB Output is correct
101 Correct 3 ms 852 KB Output is correct
102 Correct 3 ms 852 KB Output is correct
103 Correct 3 ms 852 KB Output is correct
104 Correct 3 ms 852 KB Output is correct
105 Correct 2 ms 852 KB Output is correct
106 Correct 3 ms 852 KB Output is correct
107 Correct 3 ms 852 KB Output is correct
108 Correct 3 ms 852 KB Output is correct
109 Correct 3 ms 852 KB Output is correct
110 Correct 1 ms 724 KB Output is correct
111 Correct 108 ms 17864 KB Output is correct
112 Correct 145 ms 17800 KB Output is correct
113 Correct 111 ms 17808 KB Output is correct
114 Correct 105 ms 17780 KB Output is correct
115 Correct 107 ms 17872 KB Output is correct
116 Correct 79 ms 17888 KB Output is correct
117 Correct 69 ms 17788 KB Output is correct
118 Correct 179 ms 22728 KB Output is correct
119 Correct 176 ms 22172 KB Output is correct
120 Correct 156 ms 20144 KB Output is correct
121 Correct 79 ms 17812 KB Output is correct
122 Correct 158 ms 20728 KB Output is correct
123 Correct 149 ms 20580 KB Output is correct
124 Correct 145 ms 20100 KB Output is correct
125 Correct 69 ms 17812 KB Output is correct
126 Correct 127 ms 18428 KB Output is correct
127 Correct 139 ms 18276 KB Output is correct
128 Correct 128 ms 18248 KB Output is correct
129 Correct 67 ms 17828 KB Output is correct
130 Correct 117 ms 17916 KB Output is correct
131 Correct 123 ms 17832 KB Output is correct
132 Correct 124 ms 17788 KB Output is correct
133 Correct 67 ms 17836 KB Output is correct
134 Correct 134 ms 17864 KB Output is correct
135 Correct 117 ms 17788 KB Output is correct
136 Correct 109 ms 17796 KB Output is correct
137 Correct 71 ms 17788 KB Output is correct
138 Correct 105 ms 17852 KB Output is correct
139 Correct 105 ms 17796 KB Output is correct
140 Correct 77 ms 17812 KB Output is correct
141 Correct 70 ms 17860 KB Output is correct
142 Correct 99 ms 15304 KB Output is correct
143 Correct 107 ms 15348 KB Output is correct
144 Correct 100 ms 15188 KB Output is correct
145 Correct 89 ms 15244 KB Output is correct
146 Correct 84 ms 15176 KB Output is correct
147 Correct 96 ms 14976 KB Output is correct
148 Correct 81 ms 14960 KB Output is correct
149 Correct 86 ms 14848 KB Output is correct
150 Correct 90 ms 14652 KB Output is correct
151 Correct 72 ms 14148 KB Output is correct
152 Correct 50 ms 10156 KB Output is correct
153 Correct 92 ms 15236 KB Output is correct
154 Correct 80 ms 15096 KB Output is correct
155 Correct 117 ms 15048 KB Output is correct
156 Correct 124 ms 14960 KB Output is correct
157 Correct 85 ms 14784 KB Output is correct
158 Correct 95 ms 14728 KB Output is correct
159 Correct 90 ms 14148 KB Output is correct
160 Correct 38 ms 10128 KB Output is correct
161 Correct 155 ms 16404 KB Output is correct
162 Correct 169 ms 16408 KB Output is correct
163 Correct 142 ms 16312 KB Output is correct
164 Correct 134 ms 16144 KB Output is correct
165 Correct 141 ms 16044 KB Output is correct
166 Correct 52 ms 17912 KB Output is correct
167 Correct 97 ms 20292 KB Output is correct
168 Correct 91 ms 20212 KB Output is correct
169 Correct 89 ms 20040 KB Output is correct
170 Correct 86 ms 19912 KB Output is correct
171 Correct 86 ms 20364 KB Output is correct
172 Correct 87 ms 20332 KB Output is correct
173 Correct 139 ms 12668 KB Output is correct
174 Correct 129 ms 12492 KB Output is correct
175 Correct 131 ms 12544 KB Output is correct
176 Correct 121 ms 12004 KB Output is correct