oj.uz

답안 #445125

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
445125 2021-07-16T13:59:22 Z mosiashvililuka Event Hopping 2 (JOI21_event2) C++14
100 / 100
 304 ms 29564 KB 
#include<bits/stdc++.h>
#define mk make_pair
using namespace std;
const int N=1000000002;
int a,b,c,d,e,i,j,ii,jj,zx,xc,k,sf[100009],mshrg[100009][19],pr[100009],mshlf[100009][19],lef,rig,mid,pas;
pair <int, int> p[100009];
pair <pair <int, int>, int> P[100009];
pair <pair <int, int>, pair <int, int> > PP;
set <pair <pair <int, int>, pair <int, int> > > s;
set <pair <pair <int, int>, pair <int, int> > >::iterator it,tt;
set <int> S;
set <int>::iterator IT;
int left(int q, int w){
	int sm=0;
	for(int h=17; h>=0; h--){
		if(mshlf[q][h]<=0||mshlf[q][h]>=a+1) continue;
		if(p[mshlf[q][h]].first<w) continue;
		sm+=(1<<h);
		q=mshlf[q][h];
	}
	return sm;
}
int right(int q, int w){
	int sm=0;
	for(int h=17; h>=0; h--){
		if(mshrg[q][h]<=0||mshrg[q][h]>=a+1) continue;
		if(p[mshrg[q][h]].second>w) continue;
		sm+=(1<<h);
		q=mshrg[q][h];
	}
	return sm;
}
int main(){
	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin>>a>>k;
	for(i=1; i<=a; i++){
		cin>>p[i].first>>p[i].second;
		P[i].first=p[i];P[i].second=i;
	}
	sort(P+1,P+a+1);
	sf[a]=a;
	for(i=a-1; i>=1; i--){
		if(P[i].first.second<=P[sf[i+1]].first.second){
			sf[i]=i;
		}else{
			sf[i]=sf[i+1];
		}
	}
	for(i=1; i<=a; i++){
		lef=0;rig=a+1;
		while(1){
			if(lef+1>=rig) break;
			mid=(lef+rig)/2;
			if(P[mid].first.first<p[i].second){
				lef=mid;
			}else{
				rig=mid;
			}
		}
		mshrg[i][0]=P[sf[lef+1]].second;
	}
	for(i=1; i<=a; i++){
		P[i].first.first=p[i].second;P[i].first.second=p[i].first;
		P[i].second=i;
	}
	sort(P+1,P+a+1);
	for(i=1; i<=a; i++) swap(P[i].first.first,P[i].first.second);
	pr[1]=1;
	for(i=2; i<=a; i++){
		if(P[i].first.first>=P[pr[i-1]].first.first){
			pr[i]=i;
		}else{
			pr[i]=pr[i-1];
		}
	}
	for(i=1; i<=a; i++){
		lef=0;rig=a+1;
		while(1){
			if(lef+1>=rig) break;
			mid=(lef+rig)/2;
			if(P[mid].first.second>p[i].first){
				rig=mid;
			}else{
				lef=mid;
			}
		}
		mshlf[i][0]=P[pr[rig-1]].second;
	}
	
	for(j=1; j<=17; j++){
		for(i=1; i<=a; i++){
			mshlf[i][j]=mshlf[mshlf[i][j-1]][j-1];
			mshrg[i][j]=mshrg[mshrg[i][j-1]][j-1];
		}
	}
	pas=0;
	s.insert(mk(mk(0,0),mk(0,0)));
	s.insert(mk(mk(N,N),mk(0,0)));
	for(i=1; i<=a; i++){
		if(s.size()>=k+2) break;
		it=s.lower_bound(mk(mk(p[i].first,0),mk(0,0)));
		if((*it).first.first<p[i].second) continue;
		it--;
		if((*it).first.second>p[i].first) continue;
		it++;
		e=pas;
		pas-=(*it).second.first;
		it--;
		c=left(i,(*it).first.second);
		it++;
		pas+=c;
		d=right(i,(*it).first.first);
		pas+=d;
		pas++;
		if(pas<k){
			pas=e;
			continue;
		}
		PP=(*it);
		s.erase(it);
		s.insert(mk(PP.first,mk(d,PP.second.second)));
		s.insert(mk(mk(p[i].first,p[i].second),mk(c,i)));
	}
	if(s.size()<k+2){
		cout<<-1;
		return 0;
	}
	for(it=s.begin(); it!=s.end(); it++){
		if((*it).second.second==0) continue;
		S.insert((*it).second.second);
	}
	
	for(IT=S.begin(); IT!=S.end(); IT++){
		cout<<(*IT)<<"\n";
		k--;
		if(k==0) break;
	}
	return 0;
}

Compilation message

event2.cpp: In function 'int main()':
event2.cpp:100:14: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<std::pair<int, int>, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  100 |   if(s.size()>=k+2) break;
      |      ~~~~~~~~^~~~~
event2.cpp:124:13: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<std::pair<int, int>, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  124 |  if(s.size()<k+2){
      |     ~~~~~~~~^~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 188 ms 28548 KB Output is correct
5 Correct 184 ms 28008 KB Output is correct
6 Correct 183 ms 27460 KB Output is correct
7 Correct 169 ms 26480 KB Output is correct
8 Correct 190 ms 28632 KB Output is correct
9 Correct 187 ms 28020 KB Output is correct
10 Correct 190 ms 27464 KB Output is correct
11 Correct 172 ms 26500 KB Output is correct
12 Correct 157 ms 24480 KB Output is correct
13 Correct 159 ms 24160 KB Output is correct
14 Correct 150 ms 23856 KB Output is correct
15 Correct 143 ms 23168 KB Output is correct
16 Correct 107 ms 19400 KB Output is correct
17 Correct 103 ms 19216 KB Output is correct
18 Correct 100 ms 19056 KB Output is correct
19 Correct 84 ms 17988 KB Output is correct
20 Correct 86 ms 18092 KB Output is correct
21 Correct 85 ms 17952 KB Output is correct
22 Correct 81 ms 17860 KB Output is correct
23 Correct 85 ms 17904 KB Output is correct
24 Correct 80 ms 17908 KB Output is correct
25 Correct 83 ms 17860 KB Output is correct
26 Correct 85 ms 17984 KB Output is correct
27 Correct 84 ms 17856 KB Output is correct
28 Correct 96 ms 17860 KB Output is correct
29 Correct 97 ms 17908 KB Output is correct
30 Correct 102 ms 17876 KB Output is correct
31 Correct 89 ms 17860 KB Output is correct
32 Correct 85 ms 17860 KB Output is correct
33 Correct 91 ms 17904 KB Output is correct
34 Correct 125 ms 21828 KB Output is correct
35 Correct 109 ms 20488 KB Output is correct
36 Correct 96 ms 19216 KB Output is correct
37 Correct 147 ms 23620 KB Output is correct
38 Correct 151 ms 23368 KB Output is correct
39 Correct 140 ms 23108 KB Output is correct
40 Correct 138 ms 22892 KB Output is correct
41 Correct 136 ms 22756 KB Output is correct
42 Correct 102 ms 17820 KB Output is correct
43 Correct 152 ms 23408 KB Output is correct
44 Correct 152 ms 23204 KB Output is correct
45 Correct 141 ms 22956 KB Output is correct
46 Correct 149 ms 22724 KB Output is correct

Subtask #2
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 3 ms 844 KB Output is correct
29 Correct 2 ms 844 KB Output is correct
30 Correct 3 ms 844 KB Output is correct
31 Correct 2 ms 844 KB Output is correct
32 Correct 2 ms 844 KB Output is correct
33 Correct 3 ms 844 KB Output is correct
34 Correct 4 ms 844 KB Output is correct
35 Correct 5 ms 1100 KB Output is correct
36 Correct 5 ms 1100 KB Output is correct
37 Correct 4 ms 1100 KB Output is correct
38 Correct 3 ms 844 KB Output is correct
39 Correct 5 ms 1100 KB Output is correct
40 Correct 5 ms 1100 KB Output is correct
41 Correct 5 ms 1100 KB Output is correct
42 Correct 3 ms 844 KB Output is correct
43 Correct 4 ms 972 KB Output is correct
44 Correct 3 ms 844 KB Output is correct
45 Correct 3 ms 844 KB Output is correct
46 Correct 3 ms 844 KB Output is correct
47 Correct 3 ms 844 KB Output is correct
48 Correct 3 ms 844 KB Output is correct
49 Correct 3 ms 844 KB Output is correct
50 Correct 3 ms 844 KB Output is correct
51 Correct 3 ms 844 KB Output is correct
52 Correct 3 ms 844 KB Output is correct
53 Correct 2 ms 844 KB Output is correct
54 Correct 3 ms 844 KB Output is correct
55 Correct 4 ms 1100 KB Output is correct
56 Correct 4 ms 1100 KB Output is correct
57 Correct 4 ms 1100 KB Output is correct
58 Correct 4 ms 1100 KB Output is correct
59 Correct 4 ms 1136 KB Output is correct
60 Correct 4 ms 1100 KB Output is correct
61 Correct 4 ms 1156 KB Output is correct
62 Correct 4 ms 1100 KB Output is correct
63 Correct 5 ms 1100 KB Output is correct
64 Correct 3 ms 844 KB Output is correct

Subtask #4
61.0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 188 ms 28548 KB Output is correct
5 Correct 184 ms 28008 KB Output is correct
6 Correct 183 ms 27460 KB Output is correct
7 Correct 169 ms 26480 KB Output is correct
8 Correct 190 ms 28632 KB Output is correct
9 Correct 187 ms 28020 KB Output is correct
10 Correct 190 ms 27464 KB Output is correct
11 Correct 172 ms 26500 KB Output is correct
12 Correct 157 ms 24480 KB Output is correct
13 Correct 159 ms 24160 KB Output is correct
14 Correct 150 ms 23856 KB Output is correct
15 Correct 143 ms 23168 KB Output is correct
16 Correct 107 ms 19400 KB Output is correct
17 Correct 103 ms 19216 KB Output is correct
18 Correct 100 ms 19056 KB Output is correct
19 Correct 84 ms 17988 KB Output is correct
20 Correct 86 ms 18092 KB Output is correct
21 Correct 85 ms 17952 KB Output is correct
22 Correct 81 ms 17860 KB Output is correct
23 Correct 85 ms 17904 KB Output is correct
24 Correct 80 ms 17908 KB Output is correct
25 Correct 83 ms 17860 KB Output is correct
26 Correct 85 ms 17984 KB Output is correct
27 Correct 84 ms 17856 KB Output is correct
28 Correct 96 ms 17860 KB Output is correct
29 Correct 97 ms 17908 KB Output is correct
30 Correct 102 ms 17876 KB Output is correct
31 Correct 89 ms 17860 KB Output is correct
32 Correct 85 ms 17860 KB Output is correct
33 Correct 91 ms 17904 KB Output is correct
34 Correct 125 ms 21828 KB Output is correct
35 Correct 109 ms 20488 KB Output is correct
36 Correct 96 ms 19216 KB Output is correct
37 Correct 147 ms 23620 KB Output is correct
38 Correct 151 ms 23368 KB Output is correct
39 Correct 140 ms 23108 KB Output is correct
40 Correct 138 ms 22892 KB Output is correct
41 Correct 136 ms 22756 KB Output is correct
42 Correct 102 ms 17820 KB Output is correct
43 Correct 152 ms 23408 KB Output is correct
44 Correct 152 ms 23204 KB Output is correct
45 Correct 141 ms 22956 KB Output is correct
46 Correct 149 ms 22724 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 0 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 0 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 0 ms 332 KB Output is correct
56 Correct 0 ms 332 KB Output is correct
57 Correct 0 ms 332 KB Output is correct
58 Correct 0 ms 332 KB Output is correct
59 Correct 0 ms 332 KB Output is correct
60 Correct 0 ms 332 KB Output is correct
61 Correct 0 ms 332 KB Output is correct
62 Correct 0 ms 332 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 0 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct
69 Correct 0 ms 332 KB Output is correct
70 Correct 0 ms 332 KB Output is correct
71 Correct 0 ms 332 KB Output is correct
72 Correct 1 ms 332 KB Output is correct
73 Correct 0 ms 332 KB Output is correct
74 Correct 3 ms 844 KB Output is correct
75 Correct 2 ms 844 KB Output is correct
76 Correct 3 ms 844 KB Output is correct
77 Correct 2 ms 844 KB Output is correct
78 Correct 2 ms 844 KB Output is correct
79 Correct 3 ms 844 KB Output is correct
80 Correct 4 ms 844 KB Output is correct
81 Correct 5 ms 1100 KB Output is correct
82 Correct 5 ms 1100 KB Output is correct
83 Correct 4 ms 1100 KB Output is correct
84 Correct 3 ms 844 KB Output is correct
85 Correct 5 ms 1100 KB Output is correct
86 Correct 5 ms 1100 KB Output is correct
87 Correct 5 ms 1100 KB Output is correct
88 Correct 3 ms 844 KB Output is correct
89 Correct 4 ms 972 KB Output is correct
90 Correct 3 ms 844 KB Output is correct
91 Correct 3 ms 844 KB Output is correct
92 Correct 3 ms 844 KB Output is correct
93 Correct 3 ms 844 KB Output is correct
94 Correct 3 ms 844 KB Output is correct
95 Correct 3 ms 844 KB Output is correct
96 Correct 3 ms 844 KB Output is correct
97 Correct 3 ms 844 KB Output is correct
98 Correct 3 ms 844 KB Output is correct
99 Correct 2 ms 844 KB Output is correct
100 Correct 3 ms 844 KB Output is correct
101 Correct 4 ms 1100 KB Output is correct
102 Correct 4 ms 1100 KB Output is correct
103 Correct 4 ms 1100 KB Output is correct
104 Correct 4 ms 1100 KB Output is correct
105 Correct 4 ms 1136 KB Output is correct
106 Correct 4 ms 1100 KB Output is correct
107 Correct 4 ms 1156 KB Output is correct
108 Correct 4 ms 1100 KB Output is correct
109 Correct 5 ms 1100 KB Output is correct
110 Correct 3 ms 844 KB Output is correct
111 Correct 106 ms 17880 KB Output is correct
112 Correct 108 ms 17860 KB Output is correct
113 Correct 107 ms 17892 KB Output is correct
114 Correct 100 ms 17876 KB Output is correct
115 Correct 102 ms 17892 KB Output is correct
116 Correct 116 ms 17896 KB Output is correct
117 Correct 117 ms 17840 KB Output is correct
118 Correct 301 ms 28612 KB Output is correct
119 Correct 304 ms 27504 KB Output is correct
120 Correct 212 ms 23256 KB Output is correct
121 Correct 212 ms 17860 KB Output is correct
122 Correct 246 ms 24516 KB Output is correct
123 Correct 219 ms 23876 KB Output is correct
124 Correct 205 ms 23108 KB Output is correct
125 Correct 201 ms 17792 KB Output is correct
126 Correct 150 ms 19384 KB Output is correct
127 Correct 155 ms 19132 KB Output is correct
128 Correct 142 ms 19024 KB Output is correct
129 Correct 157 ms 17788 KB Output is correct
130 Correct 121 ms 17996 KB Output is correct
131 Correct 122 ms 18004 KB Output is correct
132 Correct 118 ms 18116 KB Output is correct
133 Correct 135 ms 17824 KB Output is correct
134 Correct 114 ms 17896 KB Output is correct
135 Correct 112 ms 17864 KB Output is correct
136 Correct 112 ms 17916 KB Output is correct
137 Correct 122 ms 17912 KB Output is correct
138 Correct 105 ms 17888 KB Output is correct
139 Correct 112 ms 17840 KB Output is correct
140 Correct 102 ms 17884 KB Output is correct
141 Correct 120 ms 17860 KB Output is correct
142 Correct 200 ms 29564 KB Output is correct
143 Correct 207 ms 29428 KB Output is correct
144 Correct 213 ms 29484 KB Output is correct
145 Correct 206 ms 29252 KB Output is correct
146 Correct 197 ms 29132 KB Output is correct
147 Correct 192 ms 28868 KB Output is correct
148 Correct 191 ms 28672 KB Output is correct
149 Correct 187 ms 28424 KB Output is correct
150 Correct 189 ms 28168 KB Output is correct
151 Correct 177 ms 27092 KB Output is correct
152 Correct 101 ms 17904 KB Output is correct
153 Correct 215 ms 29400 KB Output is correct
154 Correct 200 ms 29096 KB Output is correct
155 Correct 200 ms 29012 KB Output is correct
156 Correct 208 ms 28600 KB Output is correct
157 Correct 200 ms 28524 KB Output is correct
158 Correct 190 ms 28228 KB Output is correct
159 Correct 174 ms 27032 KB Output is correct
160 Correct 96 ms 17860 KB Output is correct
161 Correct 226 ms 23588 KB Output is correct
162 Correct 225 ms 23428 KB Output is correct
163 Correct 205 ms 23276 KB Output is correct
164 Correct 208 ms 22980 KB Output is correct
165 Correct 193 ms 22724 KB Output is correct
166 Correct 107 ms 18012 KB Output is correct
167 Correct 161 ms 23400 KB Output is correct
168 Correct 156 ms 23208 KB Output is correct
169 Correct 145 ms 22936 KB Output is correct
170 Correct 145 ms 22784 KB Output is correct
171 Correct 150 ms 23668 KB Output is correct
172 Correct 154 ms 23864 KB Output is correct
173 Correct 252 ms 23620 KB Output is correct
174 Correct 254 ms 23668 KB Output is correct
175 Correct 226 ms 23468 KB Output is correct
176 Correct 218 ms 22512 KB Output is correct