oj.uz

Submission #756746

# Submission time Handle Problem Language Result Execution time Memory
756746 2023-06-12T07:21:20 Z Dan4Life Event Hopping 2 (JOI21_event2) C++17
100 / 100
 194 ms 23680 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;
vector<pair<int,int>> w;

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 = 1; i <= n; i++){
        L[i] = lower_bound(all(v),L[i])-begin(v);
        R[i] = lower_bound(all(v),R[i])-begin(v);
        w.pb({L[i],R[i]});
    }
    sort(all(w));
    int r = sz(v), j = sz(w)-1;
    for(int i = sz(v); i>=0; i--){
        while(j>=0 and w[j].fi>=i) 
            r = min(r, w[j].se), j--;
        jmp[0][i] = r;
    }
    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 << "\n"; 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 104 ms 23680 KB Output is correct
5 Correct 103 ms 23260 KB Output is correct
6 Correct 97 ms 23024 KB Output is correct
7 Correct 96 ms 22568 KB Output is correct
8 Correct 108 ms 23508 KB Output is correct
9 Correct 105 ms 23360 KB Output is correct
10 Correct 98 ms 23072 KB Output is correct
11 Correct 102 ms 22552 KB Output is correct
12 Correct 101 ms 21680 KB Output is correct
13 Correct 89 ms 21548 KB Output is correct
14 Correct 81 ms 21356 KB Output is correct
15 Correct 80 ms 21060 KB Output is correct
16 Correct 79 ms 19376 KB Output is correct
17 Correct 63 ms 19276 KB Output is correct
18 Correct 62 ms 19324 KB Output is correct
19 Correct 55 ms 18764 KB Output is correct
20 Correct 53 ms 18760 KB Output is correct
21 Correct 56 ms 18752 KB Output is correct
22 Correct 57 ms 18760 KB Output is correct
23 Correct 59 ms 18796 KB Output is correct
24 Correct 57 ms 18816 KB Output is correct
25 Correct 58 ms 18732 KB Output is correct
26 Correct 59 ms 18752 KB Output is correct
27 Correct 65 ms 18784 KB Output is correct
28 Correct 43 ms 18820 KB Output is correct
29 Correct 46 ms 18804 KB Output is correct
30 Correct 48 ms 18820 KB Output is correct
31 Correct 54 ms 18788 KB Output is correct
32 Correct 55 ms 18800 KB Output is correct
33 Correct 57 ms 18728 KB Output is correct
34 Correct 75 ms 20488 KB Output is correct
35 Correct 66 ms 19788 KB Output is correct
36 Correct 57 ms 19256 KB Output is correct
37 Correct 85 ms 21236 KB Output is correct
38 Correct 80 ms 21120 KB Output is correct
39 Correct 90 ms 21084 KB Output is correct
40 Correct 92 ms 21020 KB Output is correct
41 Correct 79 ms 20904 KB Output is correct
42 Correct 59 ms 18884 KB Output is correct
43 Correct 94 ms 21232 KB Output is correct
44 Correct 91 ms 21080 KB Output is correct
45 Correct 100 ms 21028 KB Output is correct
46 Correct 89 ms 20804 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 456 KB Output is correct
2 Correct 1 ms 424 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 456 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 456 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 468 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 464 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 460 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 460 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 456 KB Output is correct
2 Correct 1 ms 424 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 456 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 456 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 468 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 464 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 460 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 460 KB Output is correct
28 Correct 3 ms 1112 KB Output is correct
29 Correct 3 ms 1108 KB Output is correct
30 Correct 3 ms 1108 KB Output is correct
31 Correct 3 ms 1108 KB Output is correct
32 Correct 3 ms 1108 KB Output is correct
33 Correct 3 ms 1112 KB Output is correct
34 Correct 3 ms 1108 KB Output is correct
35 Correct 5 ms 1236 KB Output is correct
36 Correct 4 ms 1112 KB Output is correct
37 Correct 4 ms 1108 KB Output is correct
38 Correct 3 ms 1092 KB Output is correct
39 Correct 4 ms 1104 KB Output is correct
40 Correct 4 ms 1112 KB Output is correct
41 Correct 5 ms 1108 KB Output is correct
42 Correct 3 ms 1108 KB Output is correct
43 Correct 4 ms 1108 KB Output is correct
44 Correct 4 ms 1108 KB Output is correct
45 Correct 3 ms 1108 KB Output is correct
46 Correct 3 ms 1108 KB Output is correct
47 Correct 3 ms 1108 KB Output is correct
48 Correct 4 ms 1112 KB Output is correct
49 Correct 3 ms 1108 KB Output is correct
50 Correct 3 ms 1108 KB Output is correct
51 Correct 3 ms 1108 KB Output is correct
52 Correct 3 ms 1116 KB Output is correct
53 Correct 3 ms 1108 KB Output is correct
54 Correct 3 ms 1024 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 980 KB Output is correct
58 Correct 4 ms 884 KB Output is correct
59 Correct 3 ms 980 KB Output is correct
60 Correct 5 ms 992 KB Output is correct
61 Correct 3 ms 952 KB Output is correct
62 Correct 3 ms 928 KB Output is correct
63 Correct 3 ms 980 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 104 ms 23680 KB Output is correct
5 Correct 103 ms 23260 KB Output is correct
6 Correct 97 ms 23024 KB Output is correct
7 Correct 96 ms 22568 KB Output is correct
8 Correct 108 ms 23508 KB Output is correct
9 Correct 105 ms 23360 KB Output is correct
10 Correct 98 ms 23072 KB Output is correct
11 Correct 102 ms 22552 KB Output is correct
12 Correct 101 ms 21680 KB Output is correct
13 Correct 89 ms 21548 KB Output is correct
14 Correct 81 ms 21356 KB Output is correct
15 Correct 80 ms 21060 KB Output is correct
16 Correct 79 ms 19376 KB Output is correct
17 Correct 63 ms 19276 KB Output is correct
18 Correct 62 ms 19324 KB Output is correct
19 Correct 55 ms 18764 KB Output is correct
20 Correct 53 ms 18760 KB Output is correct
21 Correct 56 ms 18752 KB Output is correct
22 Correct 57 ms 18760 KB Output is correct
23 Correct 59 ms 18796 KB Output is correct
24 Correct 57 ms 18816 KB Output is correct
25 Correct 58 ms 18732 KB Output is correct
26 Correct 59 ms 18752 KB Output is correct
27 Correct 65 ms 18784 KB Output is correct
28 Correct 43 ms 18820 KB Output is correct
29 Correct 46 ms 18804 KB Output is correct
30 Correct 48 ms 18820 KB Output is correct
31 Correct 54 ms 18788 KB Output is correct
32 Correct 55 ms 18800 KB Output is correct
33 Correct 57 ms 18728 KB Output is correct
34 Correct 75 ms 20488 KB Output is correct
35 Correct 66 ms 19788 KB Output is correct
36 Correct 57 ms 19256 KB Output is correct
37 Correct 85 ms 21236 KB Output is correct
38 Correct 80 ms 21120 KB Output is correct
39 Correct 90 ms 21084 KB Output is correct
40 Correct 92 ms 21020 KB Output is correct
41 Correct 79 ms 20904 KB Output is correct
42 Correct 59 ms 18884 KB Output is correct
43 Correct 94 ms 21232 KB Output is correct
44 Correct 91 ms 21080 KB Output is correct
45 Correct 100 ms 21028 KB Output is correct
46 Correct 89 ms 20804 KB Output is correct
47 Correct 1 ms 456 KB Output is correct
48 Correct 1 ms 424 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 456 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 456 KB Output is correct
57 Correct 1 ms 460 KB Output is correct
58 Correct 1 ms 468 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 464 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 460 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 460 KB Output is correct
74 Correct 3 ms 1112 KB Output is correct
75 Correct 3 ms 1108 KB Output is correct
76 Correct 3 ms 1108 KB Output is correct
77 Correct 3 ms 1108 KB Output is correct
78 Correct 3 ms 1108 KB Output is correct
79 Correct 3 ms 1112 KB Output is correct
80 Correct 3 ms 1108 KB Output is correct
81 Correct 5 ms 1236 KB Output is correct
82 Correct 4 ms 1112 KB Output is correct
83 Correct 4 ms 1108 KB Output is correct
84 Correct 3 ms 1092 KB Output is correct
85 Correct 4 ms 1104 KB Output is correct
86 Correct 4 ms 1112 KB Output is correct
87 Correct 5 ms 1108 KB Output is correct
88 Correct 3 ms 1108 KB Output is correct
89 Correct 4 ms 1108 KB Output is correct
90 Correct 4 ms 1108 KB Output is correct
91 Correct 3 ms 1108 KB Output is correct
92 Correct 3 ms 1108 KB Output is correct
93 Correct 3 ms 1108 KB Output is correct
94 Correct 4 ms 1112 KB Output is correct
95 Correct 3 ms 1108 KB Output is correct
96 Correct 3 ms 1108 KB Output is correct
97 Correct 3 ms 1108 KB Output is correct
98 Correct 3 ms 1116 KB Output is correct
99 Correct 3 ms 1108 KB Output is correct
100 Correct 3 ms 1024 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 980 KB Output is correct
104 Correct 4 ms 884 KB Output is correct
105 Correct 3 ms 980 KB Output is correct
106 Correct 5 ms 992 KB Output is correct
107 Correct 3 ms 952 KB Output is correct
108 Correct 3 ms 928 KB Output is correct
109 Correct 3 ms 980 KB Output is correct
110 Correct 2 ms 852 KB Output is correct
111 Correct 94 ms 18772 KB Output is correct
112 Correct 86 ms 18792 KB Output is correct
113 Correct 86 ms 18796 KB Output is correct
114 Correct 86 ms 18772 KB Output is correct
115 Correct 91 ms 18872 KB Output is correct
116 Correct 76 ms 18800 KB Output is correct
117 Correct 76 ms 18808 KB Output is correct
118 Correct 194 ms 23544 KB Output is correct
119 Correct 176 ms 23196 KB Output is correct
120 Correct 138 ms 21080 KB Output is correct
121 Correct 81 ms 18816 KB Output is correct
122 Correct 152 ms 21744 KB Output is correct
123 Correct 154 ms 21360 KB Output is correct
124 Correct 140 ms 21120 KB Output is correct
125 Correct 75 ms 18756 KB Output is correct
126 Correct 114 ms 19324 KB Output is correct
127 Correct 107 ms 19292 KB Output is correct
128 Correct 102 ms 19156 KB Output is correct
129 Correct 73 ms 18800 KB Output is correct
130 Correct 99 ms 18816 KB Output is correct
131 Correct 105 ms 18828 KB Output is correct
132 Correct 98 ms 18852 KB Output is correct
133 Correct 80 ms 18728 KB Output is correct
134 Correct 93 ms 18760 KB Output is correct
135 Correct 89 ms 18764 KB Output is correct
136 Correct 86 ms 18804 KB Output is correct
137 Correct 81 ms 18892 KB Output is correct
138 Correct 80 ms 18788 KB Output is correct
139 Correct 89 ms 18808 KB Output is correct
140 Correct 79 ms 18776 KB Output is correct
141 Correct 87 ms 18844 KB Output is correct
142 Correct 102 ms 16068 KB Output is correct
143 Correct 102 ms 16140 KB Output is correct
144 Correct 106 ms 16192 KB Output is correct
145 Correct 89 ms 16208 KB Output is correct
146 Correct 88 ms 16068 KB Output is correct
147 Correct 82 ms 15984 KB Output is correct
148 Correct 82 ms 15800 KB Output is correct
149 Correct 80 ms 15772 KB Output is correct
150 Correct 79 ms 15640 KB Output is correct
151 Correct 74 ms 15108 KB Output is correct
152 Correct 38 ms 11012 KB Output is correct
153 Correct 83 ms 16080 KB Output is correct
154 Correct 83 ms 16064 KB Output is correct
155 Correct 82 ms 15976 KB Output is correct
156 Correct 81 ms 15820 KB Output is correct
157 Correct 85 ms 15688 KB Output is correct
158 Correct 78 ms 15568 KB Output is correct
159 Correct 75 ms 15156 KB Output is correct
160 Correct 41 ms 11084 KB Output is correct
161 Correct 137 ms 17208 KB Output is correct
162 Correct 126 ms 17172 KB Output is correct
163 Correct 127 ms 17100 KB Output is correct
164 Correct 126 ms 16956 KB Output is correct
165 Correct 116 ms 16852 KB Output is correct
166 Correct 51 ms 18624 KB Output is correct
167 Correct 89 ms 21084 KB Output is correct
168 Correct 87 ms 20936 KB Output is correct
169 Correct 86 ms 20848 KB Output is correct
170 Correct 82 ms 20684 KB Output is correct
171 Correct 78 ms 21184 KB Output is correct
172 Correct 86 ms 21136 KB Output is correct
173 Correct 140 ms 13300 KB Output is correct
174 Correct 133 ms 13384 KB Output is correct
175 Correct 135 ms 13288 KB Output is correct
176 Correct 126 ms 12904 KB Output is correct