oj.uz

Submission #966855

# Submission time Handle Problem Language Result Execution time Memory
966855 2024-04-20T13:34:02 Z Trisanu_Das Event Hopping 2 (JOI21_event2) C++17
100 / 100
 165 ms 35768 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(a) begin(a),end(a)
const int N = (int)2e5+5, Lg = 17;
int n, k;
vector<int> v;
set<pair<int,int>> S;
int L[N], R[N], J[Lg][N*2];
 
int get(int l, int r){
    int T = 0;
    for(int i = Lg-1; i>=0; i--)
        if(J[i][l]<=r) l=J[i][l], T+=(1<<i);
    return T;
}
 
int main(){
    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));
    int m = v.size();
    for(int i = 0; i <= m; i++) J[0][i]=m;
    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);
        J[0][L[i]] = min(J[0][L[i]],R[i]);
    }
    for(int i = m-1; i>=0; i--)
        J[0][i]=min(J[0][i],J[0][i+1]);
    for(int i = 1; i < Lg; i++)
        for(int j = 0; j <= m; j++)
            J[i][j] = J[i-1][J[i-1][j]];
    int T = get(0,m-1); if(T<k){cout<<-1;return 0;}
    S.insert({0,0}), S.insert({m-1,m-1});
    for(int i = 1; i <= n; i++){
        auto it = S.lower_bound({R[i],0});
        int r = it->first, l = (--it)->second;
        int num = T-get(l,r)+get(l,L[i])+get(R[i],r)+1;
        if(L[i]>=l and num>=k){
            cout << i << "\n"; T=num;
            S.insert({L[i],R[i]});
            if(S.size()==k+2) break;
        }
    }
}

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:44:24: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   44 |             if(S.size()==k+2) break;
      |                ~~~~~~~~^~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 26972 KB Output is correct
2 Correct 5 ms 26972 KB Output is correct
3 Correct 4 ms 26972 KB Output is correct
4 Correct 124 ms 35352 KB Output is correct
5 Correct 116 ms 34972 KB Output is correct
6 Correct 115 ms 34760 KB Output is correct
7 Correct 108 ms 34128 KB Output is correct
8 Correct 118 ms 35132 KB Output is correct
9 Correct 114 ms 35004 KB Output is correct
10 Correct 134 ms 34752 KB Output is correct
11 Correct 108 ms 34340 KB Output is correct
12 Correct 105 ms 33216 KB Output is correct
13 Correct 103 ms 33220 KB Output is correct
14 Correct 102 ms 33076 KB Output is correct
15 Correct 106 ms 32964 KB Output is correct
16 Correct 90 ms 31072 KB Output is correct
17 Correct 90 ms 30980 KB Output is correct
18 Correct 98 ms 30756 KB Output is correct
19 Correct 94 ms 30408 KB Output is correct
20 Correct 85 ms 30492 KB Output is correct
21 Correct 87 ms 30404 KB Output is correct
22 Correct 87 ms 30660 KB Output is correct
23 Correct 97 ms 30504 KB Output is correct
24 Correct 91 ms 30580 KB Output is correct
25 Correct 92 ms 30400 KB Output is correct
26 Correct 92 ms 30400 KB Output is correct
27 Correct 97 ms 30404 KB Output is correct
28 Correct 75 ms 30408 KB Output is correct
29 Correct 84 ms 30400 KB Output is correct
30 Correct 77 ms 30340 KB Output is correct
31 Correct 78 ms 30404 KB Output is correct
32 Correct 82 ms 30404 KB Output is correct
33 Correct 86 ms 30404 KB Output is correct
34 Correct 96 ms 32124 KB Output is correct
35 Correct 91 ms 31628 KB Output is correct
36 Correct 82 ms 31004 KB Output is correct
37 Correct 103 ms 32996 KB Output is correct
38 Correct 106 ms 32704 KB Output is correct
39 Correct 125 ms 32824 KB Output is correct
40 Correct 99 ms 32708 KB Output is correct
41 Correct 101 ms 32652 KB Output is correct
42 Correct 85 ms 30476 KB Output is correct
43 Correct 116 ms 32712 KB Output is correct
44 Correct 112 ms 32628 KB Output is correct
45 Correct 118 ms 32552 KB Output is correct
46 Correct 145 ms 32440 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 26972 KB Output is correct
2 Correct 3 ms 27124 KB Output is correct
3 Correct 4 ms 26972 KB Output is correct
4 Correct 3 ms 26972 KB Output is correct
5 Correct 3 ms 27224 KB Output is correct
6 Correct 3 ms 26972 KB Output is correct
7 Correct 4 ms 26972 KB Output is correct
8 Correct 3 ms 26972 KB Output is correct
9 Correct 3 ms 26972 KB Output is correct
10 Correct 3 ms 26972 KB Output is correct
11 Correct 3 ms 26972 KB Output is correct
12 Correct 3 ms 26968 KB Output is correct
13 Correct 3 ms 27096 KB Output is correct
14 Correct 3 ms 26972 KB Output is correct
15 Correct 3 ms 26972 KB Output is correct
16 Correct 3 ms 26972 KB Output is correct
17 Correct 3 ms 26972 KB Output is correct
18 Correct 3 ms 26972 KB Output is correct
19 Correct 3 ms 26972 KB Output is correct
20 Correct 3 ms 26972 KB Output is correct
21 Correct 3 ms 26972 KB Output is correct
22 Correct 3 ms 26972 KB Output is correct
23 Correct 3 ms 27112 KB Output is correct
24 Correct 3 ms 26972 KB Output is correct
25 Correct 3 ms 26968 KB Output is correct
26 Correct 3 ms 26968 KB Output is correct
27 Correct 3 ms 26972 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 26972 KB Output is correct
2 Correct 3 ms 27124 KB Output is correct
3 Correct 4 ms 26972 KB Output is correct
4 Correct 3 ms 26972 KB Output is correct
5 Correct 3 ms 27224 KB Output is correct
6 Correct 3 ms 26972 KB Output is correct
7 Correct 4 ms 26972 KB Output is correct
8 Correct 3 ms 26972 KB Output is correct
9 Correct 3 ms 26972 KB Output is correct
10 Correct 3 ms 26972 KB Output is correct
11 Correct 3 ms 26972 KB Output is correct
12 Correct 3 ms 26968 KB Output is correct
13 Correct 3 ms 27096 KB Output is correct
14 Correct 3 ms 26972 KB Output is correct
15 Correct 3 ms 26972 KB Output is correct
16 Correct 3 ms 26972 KB Output is correct
17 Correct 3 ms 26972 KB Output is correct
18 Correct 3 ms 26972 KB Output is correct
19 Correct 3 ms 26972 KB Output is correct
20 Correct 3 ms 26972 KB Output is correct
21 Correct 3 ms 26972 KB Output is correct
22 Correct 3 ms 26972 KB Output is correct
23 Correct 3 ms 27112 KB Output is correct
24 Correct 3 ms 26972 KB Output is correct
25 Correct 3 ms 26968 KB Output is correct
26 Correct 3 ms 26968 KB Output is correct
27 Correct 3 ms 26972 KB Output is correct
28 Correct 6 ms 27224 KB Output is correct
29 Correct 6 ms 27228 KB Output is correct
30 Correct 6 ms 27224 KB Output is correct
31 Correct 6 ms 27228 KB Output is correct
32 Correct 6 ms 27228 KB Output is correct
33 Correct 6 ms 27228 KB Output is correct
34 Correct 6 ms 27248 KB Output is correct
35 Correct 9 ms 27484 KB Output is correct
36 Correct 7 ms 27224 KB Output is correct
37 Correct 7 ms 27228 KB Output is correct
38 Correct 6 ms 27084 KB Output is correct
39 Correct 7 ms 27224 KB Output is correct
40 Correct 6 ms 27228 KB Output is correct
41 Correct 7 ms 27264 KB Output is correct
42 Correct 6 ms 27228 KB Output is correct
43 Correct 7 ms 27228 KB Output is correct
44 Correct 8 ms 27228 KB Output is correct
45 Correct 7 ms 27224 KB Output is correct
46 Correct 7 ms 27228 KB Output is correct
47 Correct 6 ms 27228 KB Output is correct
48 Correct 6 ms 27228 KB Output is correct
49 Correct 6 ms 27224 KB Output is correct
50 Correct 6 ms 27228 KB Output is correct
51 Correct 8 ms 27228 KB Output is correct
52 Correct 6 ms 27228 KB Output is correct
53 Correct 6 ms 27224 KB Output is correct
54 Correct 6 ms 27228 KB Output is correct
55 Correct 6 ms 27240 KB Output is correct
56 Correct 7 ms 27228 KB Output is correct
57 Correct 6 ms 27224 KB Output is correct
58 Correct 7 ms 27228 KB Output is correct
59 Correct 6 ms 27228 KB Output is correct
60 Correct 6 ms 27228 KB Output is correct
61 Correct 6 ms 27236 KB Output is correct
62 Correct 6 ms 27228 KB Output is correct
63 Correct 7 ms 27228 KB Output is correct
64 Correct 5 ms 27228 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 26972 KB Output is correct
2 Correct 5 ms 26972 KB Output is correct
3 Correct 4 ms 26972 KB Output is correct
4 Correct 124 ms 35352 KB Output is correct
5 Correct 116 ms 34972 KB Output is correct
6 Correct 115 ms 34760 KB Output is correct
7 Correct 108 ms 34128 KB Output is correct
8 Correct 118 ms 35132 KB Output is correct
9 Correct 114 ms 35004 KB Output is correct
10 Correct 134 ms 34752 KB Output is correct
11 Correct 108 ms 34340 KB Output is correct
12 Correct 105 ms 33216 KB Output is correct
13 Correct 103 ms 33220 KB Output is correct
14 Correct 102 ms 33076 KB Output is correct
15 Correct 106 ms 32964 KB Output is correct
16 Correct 90 ms 31072 KB Output is correct
17 Correct 90 ms 30980 KB Output is correct
18 Correct 98 ms 30756 KB Output is correct
19 Correct 94 ms 30408 KB Output is correct
20 Correct 85 ms 30492 KB Output is correct
21 Correct 87 ms 30404 KB Output is correct
22 Correct 87 ms 30660 KB Output is correct
23 Correct 97 ms 30504 KB Output is correct
24 Correct 91 ms 30580 KB Output is correct
25 Correct 92 ms 30400 KB Output is correct
26 Correct 92 ms 30400 KB Output is correct
27 Correct 97 ms 30404 KB Output is correct
28 Correct 75 ms 30408 KB Output is correct
29 Correct 84 ms 30400 KB Output is correct
30 Correct 77 ms 30340 KB Output is correct
31 Correct 78 ms 30404 KB Output is correct
32 Correct 82 ms 30404 KB Output is correct
33 Correct 86 ms 30404 KB Output is correct
34 Correct 96 ms 32124 KB Output is correct
35 Correct 91 ms 31628 KB Output is correct
36 Correct 82 ms 31004 KB Output is correct
37 Correct 103 ms 32996 KB Output is correct
38 Correct 106 ms 32704 KB Output is correct
39 Correct 125 ms 32824 KB Output is correct
40 Correct 99 ms 32708 KB Output is correct
41 Correct 101 ms 32652 KB Output is correct
42 Correct 85 ms 30476 KB Output is correct
43 Correct 116 ms 32712 KB Output is correct
44 Correct 112 ms 32628 KB Output is correct
45 Correct 118 ms 32552 KB Output is correct
46 Correct 145 ms 32440 KB Output is correct
47 Correct 3 ms 26972 KB Output is correct
48 Correct 3 ms 27124 KB Output is correct
49 Correct 4 ms 26972 KB Output is correct
50 Correct 3 ms 26972 KB Output is correct
51 Correct 3 ms 27224 KB Output is correct
52 Correct 3 ms 26972 KB Output is correct
53 Correct 4 ms 26972 KB Output is correct
54 Correct 3 ms 26972 KB Output is correct
55 Correct 3 ms 26972 KB Output is correct
56 Correct 3 ms 26972 KB Output is correct
57 Correct 3 ms 26972 KB Output is correct
58 Correct 3 ms 26968 KB Output is correct
59 Correct 3 ms 27096 KB Output is correct
60 Correct 3 ms 26972 KB Output is correct
61 Correct 3 ms 26972 KB Output is correct
62 Correct 3 ms 26972 KB Output is correct
63 Correct 3 ms 26972 KB Output is correct
64 Correct 3 ms 26972 KB Output is correct
65 Correct 3 ms 26972 KB Output is correct
66 Correct 3 ms 26972 KB Output is correct
67 Correct 3 ms 26972 KB Output is correct
68 Correct 3 ms 26972 KB Output is correct
69 Correct 3 ms 27112 KB Output is correct
70 Correct 3 ms 26972 KB Output is correct
71 Correct 3 ms 26968 KB Output is correct
72 Correct 3 ms 26968 KB Output is correct
73 Correct 3 ms 26972 KB Output is correct
74 Correct 6 ms 27224 KB Output is correct
75 Correct 6 ms 27228 KB Output is correct
76 Correct 6 ms 27224 KB Output is correct
77 Correct 6 ms 27228 KB Output is correct
78 Correct 6 ms 27228 KB Output is correct
79 Correct 6 ms 27228 KB Output is correct
80 Correct 6 ms 27248 KB Output is correct
81 Correct 9 ms 27484 KB Output is correct
82 Correct 7 ms 27224 KB Output is correct
83 Correct 7 ms 27228 KB Output is correct
84 Correct 6 ms 27084 KB Output is correct
85 Correct 7 ms 27224 KB Output is correct
86 Correct 6 ms 27228 KB Output is correct
87 Correct 7 ms 27264 KB Output is correct
88 Correct 6 ms 27228 KB Output is correct
89 Correct 7 ms 27228 KB Output is correct
90 Correct 8 ms 27228 KB Output is correct
91 Correct 7 ms 27224 KB Output is correct
92 Correct 7 ms 27228 KB Output is correct
93 Correct 6 ms 27228 KB Output is correct
94 Correct 6 ms 27228 KB Output is correct
95 Correct 6 ms 27224 KB Output is correct
96 Correct 6 ms 27228 KB Output is correct
97 Correct 8 ms 27228 KB Output is correct
98 Correct 6 ms 27228 KB Output is correct
99 Correct 6 ms 27224 KB Output is correct
100 Correct 6 ms 27228 KB Output is correct
101 Correct 6 ms 27240 KB Output is correct
102 Correct 7 ms 27228 KB Output is correct
103 Correct 6 ms 27224 KB Output is correct
104 Correct 7 ms 27228 KB Output is correct
105 Correct 6 ms 27228 KB Output is correct
106 Correct 6 ms 27228 KB Output is correct
107 Correct 6 ms 27236 KB Output is correct
108 Correct 6 ms 27228 KB Output is correct
109 Correct 7 ms 27228 KB Output is correct
110 Correct 5 ms 27228 KB Output is correct
111 Correct 113 ms 30652 KB Output is correct
112 Correct 112 ms 30656 KB Output is correct
113 Correct 112 ms 30660 KB Output is correct
114 Correct 115 ms 30516 KB Output is correct
115 Correct 110 ms 30636 KB Output is correct
116 Correct 94 ms 30648 KB Output is correct
117 Correct 95 ms 30456 KB Output is correct
118 Correct 164 ms 35268 KB Output is correct
119 Correct 158 ms 34756 KB Output is correct
120 Correct 137 ms 32920 KB Output is correct
121 Correct 93 ms 30660 KB Output is correct
122 Correct 148 ms 33452 KB Output is correct
123 Correct 165 ms 33248 KB Output is correct
124 Correct 142 ms 32968 KB Output is correct
125 Correct 92 ms 30640 KB Output is correct
126 Correct 127 ms 31380 KB Output is correct
127 Correct 142 ms 30984 KB Output is correct
128 Correct 132 ms 30976 KB Output is correct
129 Correct 94 ms 30660 KB Output is correct
130 Correct 121 ms 30664 KB Output is correct
131 Correct 118 ms 30636 KB Output is correct
132 Correct 123 ms 30664 KB Output is correct
133 Correct 94 ms 30660 KB Output is correct
134 Correct 113 ms 30512 KB Output is correct
135 Correct 113 ms 30664 KB Output is correct
136 Correct 114 ms 30464 KB Output is correct
137 Correct 115 ms 30664 KB Output is correct
138 Correct 118 ms 30508 KB Output is correct
139 Correct 114 ms 30592 KB Output is correct
140 Correct 101 ms 30660 KB Output is correct
141 Correct 100 ms 30812 KB Output is correct
142 Correct 118 ms 35624 KB Output is correct
143 Correct 117 ms 35688 KB Output is correct
144 Correct 125 ms 35660 KB Output is correct
145 Correct 109 ms 35732 KB Output is correct
146 Correct 105 ms 35576 KB Output is correct
147 Correct 109 ms 35524 KB Output is correct
148 Correct 131 ms 35476 KB Output is correct
149 Correct 114 ms 35160 KB Output is correct
150 Correct 106 ms 35012 KB Output is correct
151 Correct 100 ms 34604 KB Output is correct
152 Correct 71 ms 30668 KB Output is correct
153 Correct 109 ms 35768 KB Output is correct
154 Correct 110 ms 35524 KB Output is correct
155 Correct 106 ms 35520 KB Output is correct
156 Correct 113 ms 35496 KB Output is correct
157 Correct 105 ms 35276 KB Output is correct
158 Correct 119 ms 35120 KB Output is correct
159 Correct 98 ms 34760 KB Output is correct
160 Correct 75 ms 30512 KB Output is correct
161 Correct 140 ms 33000 KB Output is correct
162 Correct 133 ms 32940 KB Output is correct
163 Correct 130 ms 33040 KB Output is correct
164 Correct 124 ms 32688 KB Output is correct
165 Correct 121 ms 32768 KB Output is correct
166 Correct 76 ms 30644 KB Output is correct
167 Correct 109 ms 33200 KB Output is correct
168 Correct 107 ms 32936 KB Output is correct
169 Correct 105 ms 32636 KB Output is correct
170 Correct 105 ms 32708 KB Output is correct
171 Correct 92 ms 32456 KB Output is correct
172 Correct 100 ms 33196 KB Output is correct
173 Correct 138 ms 33160 KB Output is correct
174 Correct 129 ms 32960 KB Output is correct
175 Correct 134 ms 32964 KB Output is correct
176 Correct 128 ms 32448 KB Output is correct