oj.uz

Submission #756764

# Submission time Handle Problem Language Result Execution time Memory
756764 2023-06-12T07:36:49 Z Dan4Life Event Hopping 2 (JOI21_event2) C++17
100 / 100
 180 ms 23060 KB 
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#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>> cur;

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;}
    cur.insert({0,0}), cur.insert({sz(v)-1,sz(v)-1});
    for(int i = 1; i <= n; i++){
        int l = prev(cur.lower_bound({R[i],0}))->se;
        int r = cur.lower_bound({R[i],0})->fi;
        if(L[i]<l) continue;
        int num = tot-get(l,r)+get(l,L[i])+get(R[i],r)+1;
        if(num>=k){
            cout << i << " "; tot=num;
            cur.insert({L[i],R[i]});
            if(sz(cur)==k+2) break;
        }
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory 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 105 ms 23008 KB Output is correct
5 Correct 99 ms 22792 KB Output is correct
6 Correct 102 ms 22616 KB Output is correct
7 Correct 90 ms 21996 KB Output is correct
8 Correct 102 ms 22984 KB Output is correct
9 Correct 120 ms 22772 KB Output is correct
10 Correct 101 ms 22576 KB Output is correct
11 Correct 97 ms 22020 KB Output is correct
12 Correct 85 ms 21096 KB Output is correct
13 Correct 82 ms 21016 KB Output is correct
14 Correct 84 ms 20884 KB Output is correct
15 Correct 81 ms 20548 KB Output is correct
16 Correct 68 ms 18756 KB Output is correct
17 Correct 58 ms 18684 KB Output is correct
18 Correct 56 ms 18668 KB Output is correct
19 Correct 51 ms 18240 KB Output is correct
20 Correct 51 ms 18308 KB Output is correct
21 Correct 63 ms 18248 KB Output is correct
22 Correct 52 ms 18248 KB Output is correct
23 Correct 52 ms 18308 KB Output is correct
24 Correct 52 ms 18172 KB Output is correct
25 Correct 56 ms 18248 KB Output is correct
26 Correct 58 ms 18300 KB Output is correct
27 Correct 54 ms 18236 KB Output is correct
28 Correct 43 ms 18180 KB Output is correct
29 Correct 43 ms 18288 KB Output is correct
30 Correct 47 ms 18180 KB Output is correct
31 Correct 51 ms 18244 KB Output is correct
32 Correct 51 ms 18224 KB Output is correct
33 Correct 53 ms 18284 KB Output is correct
34 Correct 67 ms 19984 KB Output is correct
35 Correct 59 ms 19388 KB Output is correct
36 Correct 49 ms 18680 KB Output is correct
37 Correct 80 ms 20724 KB Output is correct
38 Correct 78 ms 20632 KB Output is correct
39 Correct 84 ms 20604 KB Output is correct
40 Correct 89 ms 20388 KB Output is correct
41 Correct 77 ms 20348 KB Output is correct
42 Correct 52 ms 18172 KB Output is correct
43 Correct 90 ms 20676 KB Output is correct
44 Correct 85 ms 20544 KB Output is correct
45 Correct 85 ms 20420 KB Output is correct
46 Correct 89 ms 20376 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory 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 1 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 464 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 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 460 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 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

# Verdict Execution time Memory 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 1 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 464 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 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 460 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 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 2 ms 988 KB Output is correct
30 Correct 3 ms 980 KB Output is correct
31 Correct 3 ms 980 KB Output is correct
32 Correct 2 ms 980 KB Output is correct
33 Correct 3 ms 980 KB Output is correct
34 Correct 4 ms 976 KB Output is correct
35 Correct 4 ms 1108 KB Output is correct
36 Correct 4 ms 1108 KB Output is correct
37 Correct 3 ms 1108 KB Output is correct
38 Correct 2 ms 980 KB Output is correct
39 Correct 4 ms 1112 KB Output is correct
40 Correct 4 ms 1180 KB Output is correct
41 Correct 4 ms 1108 KB Output is correct
42 Correct 3 ms 980 KB Output is correct
43 Correct 3 ms 1108 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 984 KB Output is correct
50 Correct 3 ms 980 KB Output is correct
51 Correct 3 ms 984 KB Output is correct
52 Correct 3 ms 984 KB Output is correct
53 Correct 2 ms 980 KB Output is correct
54 Correct 2 ms 980 KB Output is correct
55 Correct 3 ms 980 KB Output is correct
56 Correct 3 ms 980 KB Output is correct
57 Correct 3 ms 984 KB Output is correct
58 Correct 3 ms 920 KB Output is correct
59 Correct 3 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 2 ms 852 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory 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 105 ms 23008 KB Output is correct
5 Correct 99 ms 22792 KB Output is correct
6 Correct 102 ms 22616 KB Output is correct
7 Correct 90 ms 21996 KB Output is correct
8 Correct 102 ms 22984 KB Output is correct
9 Correct 120 ms 22772 KB Output is correct
10 Correct 101 ms 22576 KB Output is correct
11 Correct 97 ms 22020 KB Output is correct
12 Correct 85 ms 21096 KB Output is correct
13 Correct 82 ms 21016 KB Output is correct
14 Correct 84 ms 20884 KB Output is correct
15 Correct 81 ms 20548 KB Output is correct
16 Correct 68 ms 18756 KB Output is correct
17 Correct 58 ms 18684 KB Output is correct
18 Correct 56 ms 18668 KB Output is correct
19 Correct 51 ms 18240 KB Output is correct
20 Correct 51 ms 18308 KB Output is correct
21 Correct 63 ms 18248 KB Output is correct
22 Correct 52 ms 18248 KB Output is correct
23 Correct 52 ms 18308 KB Output is correct
24 Correct 52 ms 18172 KB Output is correct
25 Correct 56 ms 18248 KB Output is correct
26 Correct 58 ms 18300 KB Output is correct
27 Correct 54 ms 18236 KB Output is correct
28 Correct 43 ms 18180 KB Output is correct
29 Correct 43 ms 18288 KB Output is correct
30 Correct 47 ms 18180 KB Output is correct
31 Correct 51 ms 18244 KB Output is correct
32 Correct 51 ms 18224 KB Output is correct
33 Correct 53 ms 18284 KB Output is correct
34 Correct 67 ms 19984 KB Output is correct
35 Correct 59 ms 19388 KB Output is correct
36 Correct 49 ms 18680 KB Output is correct
37 Correct 80 ms 20724 KB Output is correct
38 Correct 78 ms 20632 KB Output is correct
39 Correct 84 ms 20604 KB Output is correct
40 Correct 89 ms 20388 KB Output is correct
41 Correct 77 ms 20348 KB Output is correct
42 Correct 52 ms 18172 KB Output is correct
43 Correct 90 ms 20676 KB Output is correct
44 Correct 85 ms 20544 KB Output is correct
45 Correct 85 ms 20420 KB Output is correct
46 Correct 89 ms 20376 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 1 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 464 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 1 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 460 KB Output is correct
64 Correct 1 ms 468 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 1 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 2 ms 988 KB Output is correct
76 Correct 3 ms 980 KB Output is correct
77 Correct 3 ms 980 KB Output is correct
78 Correct 2 ms 980 KB Output is correct
79 Correct 3 ms 980 KB Output is correct
80 Correct 4 ms 976 KB Output is correct
81 Correct 4 ms 1108 KB Output is correct
82 Correct 4 ms 1108 KB Output is correct
83 Correct 3 ms 1108 KB Output is correct
84 Correct 2 ms 980 KB Output is correct
85 Correct 4 ms 1112 KB Output is correct
86 Correct 4 ms 1180 KB Output is correct
87 Correct 4 ms 1108 KB Output is correct
88 Correct 3 ms 980 KB Output is correct
89 Correct 3 ms 1108 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 984 KB Output is correct
96 Correct 3 ms 980 KB Output is correct
97 Correct 3 ms 984 KB Output is correct
98 Correct 3 ms 984 KB Output is correct
99 Correct 2 ms 980 KB Output is correct
100 Correct 2 ms 980 KB Output is correct
101 Correct 3 ms 980 KB Output is correct
102 Correct 3 ms 980 KB Output is correct
103 Correct 3 ms 984 KB Output is correct
104 Correct 3 ms 920 KB Output is correct
105 Correct 3 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 2 ms 852 KB Output is correct
111 Correct 80 ms 18244 KB Output is correct
112 Correct 78 ms 18252 KB Output is correct
113 Correct 76 ms 18244 KB Output is correct
114 Correct 74 ms 18168 KB Output is correct
115 Correct 71 ms 18172 KB Output is correct
116 Correct 69 ms 18168 KB Output is correct
117 Correct 68 ms 18172 KB Output is correct
118 Correct 173 ms 23060 KB Output is correct
119 Correct 180 ms 22544 KB Output is correct
120 Correct 126 ms 20592 KB Output is correct
121 Correct 71 ms 18224 KB Output is correct
122 Correct 162 ms 21244 KB Output is correct
123 Correct 160 ms 20788 KB Output is correct
124 Correct 132 ms 20688 KB Output is correct
125 Correct 66 ms 18172 KB Output is correct
126 Correct 107 ms 18796 KB Output is correct
127 Correct 97 ms 18656 KB Output is correct
128 Correct 98 ms 18620 KB Output is correct
129 Correct 69 ms 18216 KB Output is correct
130 Correct 88 ms 18336 KB Output is correct
131 Correct 88 ms 18200 KB Output is correct
132 Correct 86 ms 18244 KB Output is correct
133 Correct 68 ms 18212 KB Output is correct
134 Correct 78 ms 18176 KB Output is correct
135 Correct 77 ms 18256 KB Output is correct
136 Correct 78 ms 18216 KB Output is correct
137 Correct 80 ms 18300 KB Output is correct
138 Correct 82 ms 18220 KB Output is correct
139 Correct 73 ms 18184 KB Output is correct
140 Correct 69 ms 18180 KB Output is correct
141 Correct 69 ms 18284 KB Output is correct
142 Correct 99 ms 15560 KB Output is correct
143 Correct 96 ms 15592 KB Output is correct
144 Correct 115 ms 15632 KB Output is correct
145 Correct 81 ms 15664 KB Output is correct
146 Correct 83 ms 15484 KB Output is correct
147 Correct 78 ms 15376 KB Output is correct
148 Correct 80 ms 15296 KB Output is correct
149 Correct 78 ms 15140 KB Output is correct
150 Correct 79 ms 15080 KB Output is correct
151 Correct 101 ms 14540 KB Output is correct
152 Correct 38 ms 10556 KB Output is correct
153 Correct 87 ms 15604 KB Output is correct
154 Correct 88 ms 15500 KB Output is correct
155 Correct 84 ms 15376 KB Output is correct
156 Correct 78 ms 15312 KB Output is correct
157 Correct 78 ms 15200 KB Output is correct
158 Correct 81 ms 15096 KB Output is correct
159 Correct 71 ms 14496 KB Output is correct
160 Correct 48 ms 10496 KB Output is correct
161 Correct 146 ms 16860 KB Output is correct
162 Correct 121 ms 16716 KB Output is correct
163 Correct 127 ms 16504 KB Output is correct
164 Correct 127 ms 16444 KB Output is correct
165 Correct 107 ms 16460 KB Output is correct
166 Correct 48 ms 18128 KB Output is correct
167 Correct 83 ms 20516 KB Output is correct
168 Correct 85 ms 20364 KB Output is correct
169 Correct 80 ms 20356 KB Output is correct
170 Correct 79 ms 20220 KB Output is correct
171 Correct 76 ms 20676 KB Output is correct
172 Correct 82 ms 20636 KB Output is correct
173 Correct 129 ms 12804 KB Output is correct
174 Correct 137 ms 12928 KB Output is correct
175 Correct 126 ms 12708 KB Output is correct
176 Correct 121 ms 12360 KB Output is correct