oj.uz

답안 #934138

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
934138 2024-02-26T21:04:57 Z velislavgarkov Event Hopping 2 (JOI21_event2) C++14
100 / 100
 145 ms 51052 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <unordered_map>
using namespace std;
const int MAXN=4e5+10;
#define endl '\n'
struct Range {
    int l, r;
    int ind;
    bool friend operator < (Range a, Range b) {
        return a.r<b.r;
    }
};
struct Hole {
    int l, r, res;
    bool friend operator < (Hole a, Hole b) {
        return a.r<b.r;
    }
};
Range e[MAXN], og[MAXN];
int points[MAXN];
unordered_map <int,int> um;
vector <int> ans;
set <Hole> s;
int sp[2][MAXN][20], cnt;
int n, k;
void sparce_table() {
    for (int i=1;(1<<i)<=n;i++) {
        for (int j=1;j+(1<<i)-1<=n;j++) {
            sp[0][j][i]=max(sp[0][j][i-1], sp[0][j + (1 << (i-1))][i-1]);
        }
    }
}
void sparce_tree() {
    for (int i=1;(1<<i)<=cnt;i++) {
        for (int j=0;j<=cnt;j++) {
            if (sp[1][j][i-1]==0) continue;
            sp[1][j][i]=sp[1][sp[1][j][i-1]][i-1];
        }
    }
}
int find_dist(int cur, int gr) {
    int st=18, res=0;
    while (st>=0) {
        if (sp[1][cur][st]!=0 && sp[1][cur][st]<=gr) {
            cur=sp[1][cur][st];
            res+=(1<<st);
        }
        st--;
    }
    return res;
}
int main () {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> k;
    for (int i=1;i<=n;i++) {
        cin >> e[i].l >> e[i].r;
        e[i].ind=i;
        points[2*i-1]=e[i].l;
        points[2*i]=e[i].r;
    }
    sort(points+1,points+2*n+1);
    cnt=1;
    for (int i=1;i<=2*n;i++) {
        if (um[points[i]]!=0) continue;
        um[points[i]]=cnt;
        cnt++;
    }
    for (int i=1;i<=n;i++) {
        e[i].l=um[e[i].l];
        e[i].r=um[e[i].r];
        og[i]=e[i];
    }
    sort(e+1,e+n+1);
    for (int i=1;i<=n;i++) sp[0][i][0]=e[i].l;
    sparce_table();
    for (int i=n-1;i>=1;i--) {
        if (e[i].r==e[i+1].r) continue;
        int st=18, j=i+1;
        if (e[j].l<e[i].r) {
            while (st>=0) {
                if (j+(1<<st)-1<=n && sp[0][j][st]<e[i].r) j+=(1<<st);
                st--;
            }
        }
        sp[1][e[i].r][0]=e[j].r;
    }
    sp[1][0][0]=e[1].r;
    sparce_tree();
    s.insert({0,cnt+1,k});
    int cur_sum=k;
    for (int i=1;i<=n;i++) {
        auto it=s.lower_bound({og[i].r,og[i].r,1});
        if ((*it).l>og[i].l) continue;
        int curl, curr;
        curl=(*it).l; curr=(*it).r;
        int lef=find_dist(curl,og[i].l);
        int ri=find_dist(og[i].r,curr);
        if (lef+ri+1+cur_sum-(*it).res>=k) {
            cur_sum-=(*it).res;
            cur_sum+=lef+ri+1;
            ans.push_back(i);
            s.erase(it);
            s.insert({curl,og[i].l,lef});
            s.insert({og[i].r,curr,ri});
        }
        if (ans.size()==k) break;
    }
    if (ans.size()<k) cout << -1 << endl;
    else for (auto i:ans) cout << i << endl;
    return 0;
}
/*
5 4
1 3
2 5
8 9
6 8
10 15
*/

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:110:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  110 |         if (ans.size()==k) break;
      |             ~~~~~~~~~~^~~
event2.cpp:112:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  112 |     if (ans.size()<k) cout << -1 << endl;
      |         ~~~~~~~~~~^~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 118 ms 49168 KB Output is correct
5 Correct 113 ms 50808 KB Output is correct
6 Correct 110 ms 50296 KB Output is correct
7 Correct 108 ms 49676 KB Output is correct
8 Correct 117 ms 51052 KB Output is correct
9 Correct 114 ms 50804 KB Output is correct
10 Correct 114 ms 50324 KB Output is correct
11 Correct 104 ms 49780 KB Output is correct
12 Correct 110 ms 48504 KB Output is correct
13 Correct 105 ms 48248 KB Output is correct
14 Correct 102 ms 48128 KB Output is correct
15 Correct 99 ms 47480 KB Output is correct
16 Correct 92 ms 45308 KB Output is correct
17 Correct 86 ms 45180 KB Output is correct
18 Correct 96 ms 44908 KB Output is correct
19 Correct 81 ms 44408 KB Output is correct
20 Correct 82 ms 44416 KB Output is correct
21 Correct 81 ms 44256 KB Output is correct
22 Correct 92 ms 44628 KB Output is correct
23 Correct 81 ms 44408 KB Output is correct
24 Correct 80 ms 44408 KB Output is correct
25 Correct 80 ms 44256 KB Output is correct
26 Correct 84 ms 44160 KB Output is correct
27 Correct 86 ms 44540 KB Output is correct
28 Correct 81 ms 44152 KB Output is correct
29 Correct 85 ms 44328 KB Output is correct
30 Correct 88 ms 44264 KB Output is correct
31 Correct 90 ms 44152 KB Output is correct
32 Correct 94 ms 44668 KB Output is correct
33 Correct 88 ms 44160 KB Output is correct
34 Correct 99 ms 46916 KB Output is correct
35 Correct 103 ms 45940 KB Output is correct
36 Correct 82 ms 45172 KB Output is correct
37 Correct 116 ms 48012 KB Output is correct
38 Correct 96 ms 47876 KB Output is correct
39 Correct 110 ms 47724 KB Output is correct
40 Correct 93 ms 47480 KB Output is correct
41 Correct 92 ms 47332 KB Output is correct
42 Correct 94 ms 44160 KB Output is correct
43 Correct 112 ms 47732 KB Output is correct
44 Correct 108 ms 47532 KB Output is correct
45 Correct 101 ms 47484 KB Output is correct
46 Correct 106 ms 47256 KB Output is correct

Subtask #2
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 1 ms 8536 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8620 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8604 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 1 ms 8540 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 2 ms 8568 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 1 ms 8540 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 1 ms 8536 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8620 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8604 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 1 ms 8540 KB Output is correct
25 Correct 1 ms 8540 KB Output is correct
26 Correct 2 ms 8568 KB Output is correct
27 Correct 1 ms 8540 KB Output is correct
28 Correct 4 ms 11096 KB Output is correct
29 Correct 3 ms 11096 KB Output is correct
30 Correct 3 ms 11100 KB Output is correct
31 Correct 3 ms 11100 KB Output is correct
32 Correct 3 ms 11100 KB Output is correct
33 Correct 4 ms 11100 KB Output is correct
34 Correct 3 ms 10996 KB Output is correct
35 Correct 4 ms 11608 KB Output is correct
36 Correct 4 ms 11100 KB Output is correct
37 Correct 4 ms 11100 KB Output is correct
38 Correct 4 ms 11100 KB Output is correct
39 Correct 4 ms 11100 KB Output is correct
40 Correct 5 ms 11100 KB Output is correct
41 Correct 4 ms 11100 KB Output is correct
42 Correct 5 ms 11100 KB Output is correct
43 Correct 4 ms 11100 KB Output is correct
44 Correct 4 ms 11100 KB Output is correct
45 Correct 3 ms 11100 KB Output is correct
46 Correct 4 ms 11096 KB Output is correct
47 Correct 4 ms 11096 KB Output is correct
48 Correct 4 ms 11100 KB Output is correct
49 Correct 4 ms 11152 KB Output is correct
50 Correct 4 ms 11100 KB Output is correct
51 Correct 3 ms 11096 KB Output is correct
52 Correct 3 ms 11100 KB Output is correct
53 Correct 3 ms 11100 KB Output is correct
54 Correct 4 ms 11100 KB Output is correct
55 Correct 4 ms 11100 KB Output is correct
56 Correct 4 ms 11100 KB Output is correct
57 Correct 3 ms 11100 KB Output is correct
58 Correct 4 ms 11100 KB Output is correct
59 Correct 3 ms 11100 KB Output is correct
60 Correct 3 ms 11100 KB Output is correct
61 Correct 3 ms 11100 KB Output is correct
62 Correct 3 ms 11100 KB Output is correct
63 Correct 4 ms 11100 KB Output is correct
64 Correct 3 ms 10844 KB Output is correct

Subtask #4
61.0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 118 ms 49168 KB Output is correct
5 Correct 113 ms 50808 KB Output is correct
6 Correct 110 ms 50296 KB Output is correct
7 Correct 108 ms 49676 KB Output is correct
8 Correct 117 ms 51052 KB Output is correct
9 Correct 114 ms 50804 KB Output is correct
10 Correct 114 ms 50324 KB Output is correct
11 Correct 104 ms 49780 KB Output is correct
12 Correct 110 ms 48504 KB Output is correct
13 Correct 105 ms 48248 KB Output is correct
14 Correct 102 ms 48128 KB Output is correct
15 Correct 99 ms 47480 KB Output is correct
16 Correct 92 ms 45308 KB Output is correct
17 Correct 86 ms 45180 KB Output is correct
18 Correct 96 ms 44908 KB Output is correct
19 Correct 81 ms 44408 KB Output is correct
20 Correct 82 ms 44416 KB Output is correct
21 Correct 81 ms 44256 KB Output is correct
22 Correct 92 ms 44628 KB Output is correct
23 Correct 81 ms 44408 KB Output is correct
24 Correct 80 ms 44408 KB Output is correct
25 Correct 80 ms 44256 KB Output is correct
26 Correct 84 ms 44160 KB Output is correct
27 Correct 86 ms 44540 KB Output is correct
28 Correct 81 ms 44152 KB Output is correct
29 Correct 85 ms 44328 KB Output is correct
30 Correct 88 ms 44264 KB Output is correct
31 Correct 90 ms 44152 KB Output is correct
32 Correct 94 ms 44668 KB Output is correct
33 Correct 88 ms 44160 KB Output is correct
34 Correct 99 ms 46916 KB Output is correct
35 Correct 103 ms 45940 KB Output is correct
36 Correct 82 ms 45172 KB Output is correct
37 Correct 116 ms 48012 KB Output is correct
38 Correct 96 ms 47876 KB Output is correct
39 Correct 110 ms 47724 KB Output is correct
40 Correct 93 ms 47480 KB Output is correct
41 Correct 92 ms 47332 KB Output is correct
42 Correct 94 ms 44160 KB Output is correct
43 Correct 112 ms 47732 KB Output is correct
44 Correct 108 ms 47532 KB Output is correct
45 Correct 101 ms 47484 KB Output is correct
46 Correct 106 ms 47256 KB Output is correct
47 Correct 1 ms 8540 KB Output is correct
48 Correct 1 ms 8540 KB Output is correct
49 Correct 2 ms 8540 KB Output is correct
50 Correct 1 ms 8540 KB Output is correct
51 Correct 1 ms 8540 KB Output is correct
52 Correct 1 ms 8540 KB Output is correct
53 Correct 2 ms 8540 KB Output is correct
54 Correct 1 ms 8540 KB Output is correct
55 Correct 1 ms 8540 KB Output is correct
56 Correct 1 ms 8540 KB Output is correct
57 Correct 2 ms 8540 KB Output is correct
58 Correct 1 ms 8536 KB Output is correct
59 Correct 1 ms 8540 KB Output is correct
60 Correct 2 ms 8620 KB Output is correct
61 Correct 1 ms 8540 KB Output is correct
62 Correct 1 ms 8540 KB Output is correct
63 Correct 1 ms 8540 KB Output is correct
64 Correct 1 ms 8540 KB Output is correct
65 Correct 1 ms 8540 KB Output is correct
66 Correct 1 ms 8604 KB Output is correct
67 Correct 1 ms 8540 KB Output is correct
68 Correct 1 ms 8540 KB Output is correct
69 Correct 1 ms 8540 KB Output is correct
70 Correct 1 ms 8540 KB Output is correct
71 Correct 1 ms 8540 KB Output is correct
72 Correct 2 ms 8568 KB Output is correct
73 Correct 1 ms 8540 KB Output is correct
74 Correct 4 ms 11096 KB Output is correct
75 Correct 3 ms 11096 KB Output is correct
76 Correct 3 ms 11100 KB Output is correct
77 Correct 3 ms 11100 KB Output is correct
78 Correct 3 ms 11100 KB Output is correct
79 Correct 4 ms 11100 KB Output is correct
80 Correct 3 ms 10996 KB Output is correct
81 Correct 4 ms 11608 KB Output is correct
82 Correct 4 ms 11100 KB Output is correct
83 Correct 4 ms 11100 KB Output is correct
84 Correct 4 ms 11100 KB Output is correct
85 Correct 4 ms 11100 KB Output is correct
86 Correct 5 ms 11100 KB Output is correct
87 Correct 4 ms 11100 KB Output is correct
88 Correct 5 ms 11100 KB Output is correct
89 Correct 4 ms 11100 KB Output is correct
90 Correct 4 ms 11100 KB Output is correct
91 Correct 3 ms 11100 KB Output is correct
92 Correct 4 ms 11096 KB Output is correct
93 Correct 4 ms 11096 KB Output is correct
94 Correct 4 ms 11100 KB Output is correct
95 Correct 4 ms 11152 KB Output is correct
96 Correct 4 ms 11100 KB Output is correct
97 Correct 3 ms 11096 KB Output is correct
98 Correct 3 ms 11100 KB Output is correct
99 Correct 3 ms 11100 KB Output is correct
100 Correct 4 ms 11100 KB Output is correct
101 Correct 4 ms 11100 KB Output is correct
102 Correct 4 ms 11100 KB Output is correct
103 Correct 3 ms 11100 KB Output is correct
104 Correct 4 ms 11100 KB Output is correct
105 Correct 3 ms 11100 KB Output is correct
106 Correct 3 ms 11100 KB Output is correct
107 Correct 3 ms 11100 KB Output is correct
108 Correct 3 ms 11100 KB Output is correct
109 Correct 4 ms 11100 KB Output is correct
110 Correct 3 ms 10844 KB Output is correct
111 Correct 95 ms 44376 KB Output is correct
112 Correct 94 ms 44408 KB Output is correct
113 Correct 97 ms 44372 KB Output is correct
114 Correct 89 ms 44384 KB Output is correct
115 Correct 89 ms 44152 KB Output is correct
116 Correct 104 ms 44160 KB Output is correct
117 Correct 103 ms 44264 KB Output is correct
118 Correct 145 ms 51044 KB Output is correct
119 Correct 136 ms 50292 KB Output is correct
120 Correct 124 ms 47680 KB Output is correct
121 Correct 115 ms 44148 KB Output is correct
122 Correct 134 ms 48504 KB Output is correct
123 Correct 126 ms 47936 KB Output is correct
124 Correct 126 ms 47844 KB Output is correct
125 Correct 115 ms 44160 KB Output is correct
126 Correct 107 ms 45172 KB Output is correct
127 Correct 104 ms 45180 KB Output is correct
128 Correct 111 ms 44904 KB Output is correct
129 Correct 114 ms 44384 KB Output is correct
130 Correct 103 ms 44364 KB Output is correct
131 Correct 96 ms 44412 KB Output is correct
132 Correct 96 ms 44436 KB Output is correct
133 Correct 111 ms 44152 KB Output is correct
134 Correct 96 ms 44160 KB Output is correct
135 Correct 91 ms 44416 KB Output is correct
136 Correct 102 ms 44416 KB Output is correct
137 Correct 100 ms 44152 KB Output is correct
138 Correct 89 ms 44156 KB Output is correct
139 Correct 86 ms 44152 KB Output is correct
140 Correct 87 ms 44160 KB Output is correct
141 Correct 95 ms 44156 KB Output is correct
142 Correct 92 ms 38852 KB Output is correct
143 Correct 93 ms 38852 KB Output is correct
144 Correct 94 ms 38848 KB Output is correct
145 Correct 96 ms 40988 KB Output is correct
146 Correct 90 ms 40644 KB Output is correct
147 Correct 92 ms 40640 KB Output is correct
148 Correct 91 ms 40368 KB Output is correct
149 Correct 95 ms 40128 KB Output is correct
150 Correct 92 ms 40136 KB Output is correct
151 Correct 81 ms 39376 KB Output is correct
152 Correct 57 ms 33736 KB Output is correct
153 Correct 105 ms 40900 KB Output is correct
154 Correct 92 ms 40616 KB Output is correct
155 Correct 88 ms 40404 KB Output is correct
156 Correct 91 ms 40352 KB Output is correct
157 Correct 89 ms 40216 KB Output is correct
158 Correct 91 ms 40088 KB Output is correct
159 Correct 90 ms 39368 KB Output is correct
160 Correct 59 ms 33584 KB Output is correct
161 Correct 118 ms 40764 KB Output is correct
162 Correct 99 ms 40756 KB Output is correct
163 Correct 126 ms 40624 KB Output is correct
164 Correct 99 ms 40388 KB Output is correct
165 Correct 97 ms 40132 KB Output is correct
166 Correct 106 ms 44184 KB Output is correct
167 Correct 107 ms 47832 KB Output is correct
168 Correct 106 ms 47688 KB Output is correct
169 Correct 108 ms 47440 KB Output is correct
170 Correct 107 ms 47228 KB Output is correct
171 Correct 79 ms 47228 KB Output is correct
172 Correct 90 ms 48032 KB Output is correct
173 Correct 99 ms 35232 KB Output is correct
174 Correct 102 ms 35264 KB Output is correct
175 Correct 114 ms 35052 KB Output is correct
176 Correct 89 ms 34484 KB Output is correct