oj.uz

Submission #756786

# Submission time Handle Problem Language Result Execution time Memory
756786 2023-06-12T07:51:09 Z Dan4Life Event Hopping 2 (JOI21_event2) C++17
100 / 100
 243 ms 20084 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 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 150 ms 20084 KB Output is correct
5 Correct 157 ms 19960 KB Output is correct
6 Correct 147 ms 19564 KB Output is correct
7 Correct 186 ms 19144 KB Output is correct
8 Correct 146 ms 20072 KB Output is correct
9 Correct 145 ms 20016 KB Output is correct
10 Correct 178 ms 19812 KB Output is correct
11 Correct 143 ms 19216 KB Output is correct
12 Correct 143 ms 18280 KB Output is correct
13 Correct 143 ms 18056 KB Output is correct
14 Correct 130 ms 18004 KB Output is correct
15 Correct 132 ms 17652 KB Output is correct
16 Correct 125 ms 15932 KB Output is correct
17 Correct 146 ms 15844 KB Output is correct
18 Correct 115 ms 15724 KB Output is correct
19 Correct 111 ms 15296 KB Output is correct
20 Correct 120 ms 15384 KB Output is correct
21 Correct 114 ms 15336 KB Output is correct
22 Correct 115 ms 15276 KB Output is correct
23 Correct 125 ms 15396 KB Output is correct
24 Correct 146 ms 15328 KB Output is correct
25 Correct 115 ms 15292 KB Output is correct
26 Correct 118 ms 15360 KB Output is correct
27 Correct 131 ms 15400 KB Output is correct
28 Correct 93 ms 15396 KB Output is correct
29 Correct 95 ms 15340 KB Output is correct
30 Correct 100 ms 15344 KB Output is correct
31 Correct 110 ms 15328 KB Output is correct
32 Correct 104 ms 15316 KB Output is correct
33 Correct 115 ms 15316 KB Output is correct
34 Correct 129 ms 17024 KB Output is correct
35 Correct 118 ms 16388 KB Output is correct
36 Correct 105 ms 15768 KB Output is correct
37 Correct 135 ms 17836 KB Output is correct
38 Correct 136 ms 17756 KB Output is correct
39 Correct 127 ms 17676 KB Output is correct
40 Correct 150 ms 17560 KB Output is correct
41 Correct 138 ms 17536 KB Output is correct
42 Correct 105 ms 15380 KB Output is correct
43 Correct 142 ms 17812 KB Output is correct
44 Correct 145 ms 17664 KB Output is correct
45 Correct 141 ms 17476 KB Output is correct
46 Correct 160 ms 17384 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 4 ms 852 KB Output is correct
29 Correct 5 ms 812 KB Output is correct
30 Correct 5 ms 852 KB Output is correct
31 Correct 5 ms 920 KB Output is correct
32 Correct 4 ms 852 KB Output is correct
33 Correct 4 ms 852 KB Output is correct
34 Correct 4 ms 852 KB Output is correct
35 Correct 5 ms 980 KB Output is correct
36 Correct 5 ms 980 KB Output is correct
37 Correct 4 ms 980 KB Output is correct
38 Correct 4 ms 852 KB Output is correct
39 Correct 5 ms 940 KB Output is correct
40 Correct 4 ms 984 KB Output is correct
41 Correct 5 ms 980 KB Output is correct
42 Correct 3 ms 808 KB Output is correct
43 Correct 4 ms 852 KB Output is correct
44 Correct 8 ms 852 KB Output is correct
45 Correct 5 ms 852 KB Output is correct
46 Correct 4 ms 916 KB Output is correct
47 Correct 5 ms 852 KB Output is correct
48 Correct 7 ms 852 KB Output is correct
49 Correct 4 ms 852 KB Output is correct
50 Correct 4 ms 852 KB Output is correct
51 Correct 4 ms 852 KB Output is correct
52 Correct 4 ms 852 KB Output is correct
53 Correct 4 ms 852 KB Output is correct
54 Correct 4 ms 852 KB Output is correct
55 Correct 4 ms 724 KB Output is correct
56 Correct 4 ms 724 KB Output is correct
57 Correct 4 ms 724 KB Output is correct
58 Correct 4 ms 724 KB Output is correct
59 Correct 4 ms 724 KB Output is correct
60 Correct 4 ms 724 KB Output is correct
61 Correct 4 ms 724 KB Output is correct
62 Correct 5 ms 732 KB Output is correct
63 Correct 4 ms 724 KB Output is correct
64 Correct 3 ms 724 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 150 ms 20084 KB Output is correct
5 Correct 157 ms 19960 KB Output is correct
6 Correct 147 ms 19564 KB Output is correct
7 Correct 186 ms 19144 KB Output is correct
8 Correct 146 ms 20072 KB Output is correct
9 Correct 145 ms 20016 KB Output is correct
10 Correct 178 ms 19812 KB Output is correct
11 Correct 143 ms 19216 KB Output is correct
12 Correct 143 ms 18280 KB Output is correct
13 Correct 143 ms 18056 KB Output is correct
14 Correct 130 ms 18004 KB Output is correct
15 Correct 132 ms 17652 KB Output is correct
16 Correct 125 ms 15932 KB Output is correct
17 Correct 146 ms 15844 KB Output is correct
18 Correct 115 ms 15724 KB Output is correct
19 Correct 111 ms 15296 KB Output is correct
20 Correct 120 ms 15384 KB Output is correct
21 Correct 114 ms 15336 KB Output is correct
22 Correct 115 ms 15276 KB Output is correct
23 Correct 125 ms 15396 KB Output is correct
24 Correct 146 ms 15328 KB Output is correct
25 Correct 115 ms 15292 KB Output is correct
26 Correct 118 ms 15360 KB Output is correct
27 Correct 131 ms 15400 KB Output is correct
28 Correct 93 ms 15396 KB Output is correct
29 Correct 95 ms 15340 KB Output is correct
30 Correct 100 ms 15344 KB Output is correct
31 Correct 110 ms 15328 KB Output is correct
32 Correct 104 ms 15316 KB Output is correct
33 Correct 115 ms 15316 KB Output is correct
34 Correct 129 ms 17024 KB Output is correct
35 Correct 118 ms 16388 KB Output is correct
36 Correct 105 ms 15768 KB Output is correct
37 Correct 135 ms 17836 KB Output is correct
38 Correct 136 ms 17756 KB Output is correct
39 Correct 127 ms 17676 KB Output is correct
40 Correct 150 ms 17560 KB Output is correct
41 Correct 138 ms 17536 KB Output is correct
42 Correct 105 ms 15380 KB Output is correct
43 Correct 142 ms 17812 KB Output is correct
44 Correct 145 ms 17664 KB Output is correct
45 Correct 141 ms 17476 KB Output is correct
46 Correct 160 ms 17384 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 340 KB Output is correct
56 Correct 0 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 340 KB Output is correct
61 Correct 1 ms 340 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 1 ms 340 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 1 ms 340 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 1 ms 340 KB Output is correct
74 Correct 4 ms 852 KB Output is correct
75 Correct 5 ms 812 KB Output is correct
76 Correct 5 ms 852 KB Output is correct
77 Correct 5 ms 920 KB Output is correct
78 Correct 4 ms 852 KB Output is correct
79 Correct 4 ms 852 KB Output is correct
80 Correct 4 ms 852 KB Output is correct
81 Correct 5 ms 980 KB Output is correct
82 Correct 5 ms 980 KB Output is correct
83 Correct 4 ms 980 KB Output is correct
84 Correct 4 ms 852 KB Output is correct
85 Correct 5 ms 940 KB Output is correct
86 Correct 4 ms 984 KB Output is correct
87 Correct 5 ms 980 KB Output is correct
88 Correct 3 ms 808 KB Output is correct
89 Correct 4 ms 852 KB Output is correct
90 Correct 8 ms 852 KB Output is correct
91 Correct 5 ms 852 KB Output is correct
92 Correct 4 ms 916 KB Output is correct
93 Correct 5 ms 852 KB Output is correct
94 Correct 7 ms 852 KB Output is correct
95 Correct 4 ms 852 KB Output is correct
96 Correct 4 ms 852 KB Output is correct
97 Correct 4 ms 852 KB Output is correct
98 Correct 4 ms 852 KB Output is correct
99 Correct 4 ms 852 KB Output is correct
100 Correct 4 ms 852 KB Output is correct
101 Correct 4 ms 724 KB Output is correct
102 Correct 4 ms 724 KB Output is correct
103 Correct 4 ms 724 KB Output is correct
104 Correct 4 ms 724 KB Output is correct
105 Correct 4 ms 724 KB Output is correct
106 Correct 4 ms 724 KB Output is correct
107 Correct 4 ms 724 KB Output is correct
108 Correct 5 ms 732 KB Output is correct
109 Correct 4 ms 724 KB Output is correct
110 Correct 3 ms 724 KB Output is correct
111 Correct 151 ms 15300 KB Output is correct
112 Correct 142 ms 15340 KB Output is correct
113 Correct 161 ms 15364 KB Output is correct
114 Correct 153 ms 15384 KB Output is correct
115 Correct 148 ms 15284 KB Output is correct
116 Correct 123 ms 15296 KB Output is correct
117 Correct 118 ms 15316 KB Output is correct
118 Correct 209 ms 20072 KB Output is correct
119 Correct 243 ms 19664 KB Output is correct
120 Correct 184 ms 17624 KB Output is correct
121 Correct 115 ms 15364 KB Output is correct
122 Correct 214 ms 18348 KB Output is correct
123 Correct 204 ms 18076 KB Output is correct
124 Correct 178 ms 17580 KB Output is correct
125 Correct 132 ms 15320 KB Output is correct
126 Correct 181 ms 15924 KB Output is correct
127 Correct 172 ms 15784 KB Output is correct
128 Correct 189 ms 15724 KB Output is correct
129 Correct 144 ms 15352 KB Output is correct
130 Correct 158 ms 15400 KB Output is correct
131 Correct 184 ms 15420 KB Output is correct
132 Correct 155 ms 15444 KB Output is correct
133 Correct 130 ms 15316 KB Output is correct
134 Correct 164 ms 15368 KB Output is correct
135 Correct 166 ms 15336 KB Output is correct
136 Correct 148 ms 15272 KB Output is correct
137 Correct 122 ms 15464 KB Output is correct
138 Correct 151 ms 15292 KB Output is correct
139 Correct 142 ms 15300 KB Output is correct
140 Correct 128 ms 15312 KB Output is correct
141 Correct 128 ms 15368 KB Output is correct
142 Correct 165 ms 13844 KB Output is correct
143 Correct 140 ms 13888 KB Output is correct
144 Correct 144 ms 13832 KB Output is correct
145 Correct 140 ms 13920 KB Output is correct
146 Correct 133 ms 13760 KB Output is correct
147 Correct 129 ms 13660 KB Output is correct
148 Correct 144 ms 13692 KB Output is correct
149 Correct 131 ms 13416 KB Output is correct
150 Correct 131 ms 13332 KB Output is correct
151 Correct 154 ms 12780 KB Output is correct
152 Correct 106 ms 8772 KB Output is correct
153 Correct 133 ms 13852 KB Output is correct
154 Correct 138 ms 13828 KB Output is correct
155 Correct 143 ms 13624 KB Output is correct
156 Correct 132 ms 13508 KB Output is correct
157 Correct 126 ms 13432 KB Output is correct
158 Correct 149 ms 13368 KB Output is correct
159 Correct 121 ms 12792 KB Output is correct
160 Correct 89 ms 8716 KB Output is correct
161 Correct 195 ms 14564 KB Output is correct
162 Correct 181 ms 14532 KB Output is correct
163 Correct 172 ms 14296 KB Output is correct
164 Correct 175 ms 14156 KB Output is correct
165 Correct 186 ms 14176 KB Output is correct
166 Correct 98 ms 15312 KB Output is correct
167 Correct 139 ms 17696 KB Output is correct
168 Correct 131 ms 17600 KB Output is correct
169 Correct 142 ms 17496 KB Output is correct
170 Correct 143 ms 17500 KB Output is correct
171 Correct 124 ms 17896 KB Output is correct
172 Correct 135 ms 17884 KB Output is correct
173 Correct 206 ms 11192 KB Output is correct
174 Correct 206 ms 11268 KB Output is correct
175 Correct 191 ms 11104 KB Output is correct
176 Correct 219 ms 10820 KB Output is correct