oj.uz

답안 #445123

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
445123 2021-07-16T13:57:28 Z mosiashvililuka Event Hopping 2 (JOI21_event2) C++14
100 / 100
 299 ms 31444 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;
	}
	//cout<<endl<<endl<<endl;
	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;
		//cout<<i<<" "<<mshrg[i][0]<<endl;
	}
	
	
	
	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;
		//cout<<i<<" "<<mshlf[i][0]<<endl;
	}
	
	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];
		}
	}
	
	
	//cout<<right(3,100)<<endl;
	/*cout<<left(7,417144410)<<endl;
	return 0;*/
	//s.insert(make_pair(make_pair(0,0),make_pair()))
	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;
		//cout<<i<<" "<<pas<<endl;
		//cout<<(*it).first.first<<" "<<(*it).first.second<<" "<<(*it).second.first<<" "<<(*it).second.second<<endl;
		pas-=(*it).second.first;
		//cout<<i<<" "<<pas<<endl;
		it--;
		c=left(i,(*it).first.second);
		it++;
		pas+=c;
		d=right(i,(*it).first.first);
		pas+=d;
		pas++;
		//cout<<i<<" "<<pas<<endl;
		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(/*pas<k*/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:112:14: 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]
  112 |   if(s.size()>=k+2) break;
      |      ~~~~~~~~^~~~~
event2.cpp:142:22: 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]
  142 |  if(/*pas<k*/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 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 201 ms 29068 KB Output is correct
5 Correct 197 ms 29968 KB Output is correct
6 Correct 201 ms 29380 KB Output is correct
7 Correct 178 ms 28356 KB Output is correct
8 Correct 190 ms 30532 KB Output is correct
9 Correct 198 ms 29956 KB Output is correct
10 Correct 183 ms 29500 KB Output is correct
11 Correct 166 ms 28356 KB Output is correct
12 Correct 154 ms 26436 KB Output is correct
13 Correct 155 ms 26072 KB Output is correct
14 Correct 148 ms 25796 KB Output is correct
15 Correct 141 ms 25068 KB Output is correct
16 Correct 103 ms 21200 KB Output is correct
17 Correct 103 ms 21144 KB Output is correct
18 Correct 101 ms 20948 KB Output is correct
19 Correct 87 ms 19956 KB Output is correct
20 Correct 85 ms 19908 KB Output is correct
21 Correct 86 ms 19968 KB Output is correct
22 Correct 83 ms 19768 KB Output is correct
23 Correct 82 ms 19780 KB Output is correct
24 Correct 82 ms 19848 KB Output is correct
25 Correct 86 ms 19808 KB Output is correct
26 Correct 84 ms 19856 KB Output is correct
27 Correct 83 ms 19756 KB Output is correct
28 Correct 95 ms 19840 KB Output is correct
29 Correct 100 ms 19912 KB Output is correct
30 Correct 101 ms 19744 KB Output is correct
31 Correct 89 ms 19784 KB Output is correct
32 Correct 89 ms 19780 KB Output is correct
33 Correct 92 ms 19784 KB Output is correct
34 Correct 127 ms 23808 KB Output is correct
35 Correct 109 ms 22468 KB Output is correct
36 Correct 95 ms 21100 KB Output is correct
37 Correct 147 ms 25540 KB Output is correct
38 Correct 149 ms 25344 KB Output is correct
39 Correct 146 ms 25036 KB Output is correct
40 Correct 139 ms 24852 KB Output is correct
41 Correct 148 ms 24612 KB Output is correct
42 Correct 106 ms 19780 KB Output is correct
43 Correct 152 ms 25284 KB Output is correct
44 Correct 150 ms 25156 KB Output is correct
45 Correct 145 ms 24900 KB Output is correct
46 Correct 144 ms 24732 KB Output is correct

Subtask #2
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 320 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 0 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 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 332 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 320 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 0 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 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 320 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 3 ms 844 KB Output is correct
29 Correct 3 ms 844 KB Output is correct
30 Correct 3 ms 844 KB Output is correct
31 Correct 3 ms 844 KB Output is correct
32 Correct 3 ms 844 KB Output is correct
33 Correct 3 ms 844 KB Output is correct
34 Correct 3 ms 844 KB Output is correct
35 Correct 5 ms 1228 KB Output is correct
36 Correct 5 ms 1228 KB Output is correct
37 Correct 5 ms 1100 KB Output is correct
38 Correct 4 ms 844 KB Output is correct
39 Correct 6 ms 1100 KB Output is correct
40 Correct 5 ms 1184 KB Output is correct
41 Correct 4 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 4 ms 972 KB Output is correct
45 Correct 3 ms 972 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 840 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 3 ms 844 KB Output is correct
54 Correct 3 ms 844 KB Output is correct
55 Correct 6 ms 1228 KB Output is correct
56 Correct 4 ms 1228 KB Output is correct
57 Correct 4 ms 1228 KB Output is correct
58 Correct 4 ms 1228 KB Output is correct
59 Correct 4 ms 1228 KB Output is correct
60 Correct 6 ms 1228 KB Output is correct
61 Correct 6 ms 1224 KB Output is correct
62 Correct 4 ms 1228 KB Output is correct
63 Correct 4 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 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 201 ms 29068 KB Output is correct
5 Correct 197 ms 29968 KB Output is correct
6 Correct 201 ms 29380 KB Output is correct
7 Correct 178 ms 28356 KB Output is correct
8 Correct 190 ms 30532 KB Output is correct
9 Correct 198 ms 29956 KB Output is correct
10 Correct 183 ms 29500 KB Output is correct
11 Correct 166 ms 28356 KB Output is correct
12 Correct 154 ms 26436 KB Output is correct
13 Correct 155 ms 26072 KB Output is correct
14 Correct 148 ms 25796 KB Output is correct
15 Correct 141 ms 25068 KB Output is correct
16 Correct 103 ms 21200 KB Output is correct
17 Correct 103 ms 21144 KB Output is correct
18 Correct 101 ms 20948 KB Output is correct
19 Correct 87 ms 19956 KB Output is correct
20 Correct 85 ms 19908 KB Output is correct
21 Correct 86 ms 19968 KB Output is correct
22 Correct 83 ms 19768 KB Output is correct
23 Correct 82 ms 19780 KB Output is correct
24 Correct 82 ms 19848 KB Output is correct
25 Correct 86 ms 19808 KB Output is correct
26 Correct 84 ms 19856 KB Output is correct
27 Correct 83 ms 19756 KB Output is correct
28 Correct 95 ms 19840 KB Output is correct
29 Correct 100 ms 19912 KB Output is correct
30 Correct 101 ms 19744 KB Output is correct
31 Correct 89 ms 19784 KB Output is correct
32 Correct 89 ms 19780 KB Output is correct
33 Correct 92 ms 19784 KB Output is correct
34 Correct 127 ms 23808 KB Output is correct
35 Correct 109 ms 22468 KB Output is correct
36 Correct 95 ms 21100 KB Output is correct
37 Correct 147 ms 25540 KB Output is correct
38 Correct 149 ms 25344 KB Output is correct
39 Correct 146 ms 25036 KB Output is correct
40 Correct 139 ms 24852 KB Output is correct
41 Correct 148 ms 24612 KB Output is correct
42 Correct 106 ms 19780 KB Output is correct
43 Correct 152 ms 25284 KB Output is correct
44 Correct 150 ms 25156 KB Output is correct
45 Correct 145 ms 24900 KB Output is correct
46 Correct 144 ms 24732 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 0 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 0 ms 332 KB Output is correct
54 Correct 0 ms 332 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 0 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 0 ms 332 KB Output is correct
60 Correct 1 ms 320 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 0 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 1 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct
69 Correct 1 ms 332 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 1 ms 332 KB Output is correct
72 Correct 1 ms 320 KB Output is correct
73 Correct 1 ms 332 KB Output is correct
74 Correct 3 ms 844 KB Output is correct
75 Correct 3 ms 844 KB Output is correct
76 Correct 3 ms 844 KB Output is correct
77 Correct 3 ms 844 KB Output is correct
78 Correct 3 ms 844 KB Output is correct
79 Correct 3 ms 844 KB Output is correct
80 Correct 3 ms 844 KB Output is correct
81 Correct 5 ms 1228 KB Output is correct
82 Correct 5 ms 1228 KB Output is correct
83 Correct 5 ms 1100 KB Output is correct
84 Correct 4 ms 844 KB Output is correct
85 Correct 6 ms 1100 KB Output is correct
86 Correct 5 ms 1184 KB Output is correct
87 Correct 4 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 4 ms 972 KB Output is correct
91 Correct 3 ms 972 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 840 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 3 ms 844 KB Output is correct
100 Correct 3 ms 844 KB Output is correct
101 Correct 6 ms 1228 KB Output is correct
102 Correct 4 ms 1228 KB Output is correct
103 Correct 4 ms 1228 KB Output is correct
104 Correct 4 ms 1228 KB Output is correct
105 Correct 4 ms 1228 KB Output is correct
106 Correct 6 ms 1228 KB Output is correct
107 Correct 6 ms 1224 KB Output is correct
108 Correct 4 ms 1228 KB Output is correct
109 Correct 4 ms 1100 KB Output is correct
110 Correct 3 ms 844 KB Output is correct
111 Correct 108 ms 19816 KB Output is correct
112 Correct 107 ms 19780 KB Output is correct
113 Correct 106 ms 19776 KB Output is correct
114 Correct 103 ms 19816 KB Output is correct
115 Correct 104 ms 19780 KB Output is correct
116 Correct 120 ms 19812 KB Output is correct
117 Correct 124 ms 19780 KB Output is correct
118 Correct 299 ms 30560 KB Output is correct
119 Correct 279 ms 29460 KB Output is correct
120 Correct 212 ms 25096 KB Output is correct
121 Correct 188 ms 19732 KB Output is correct
122 Correct 232 ms 26408 KB Output is correct
123 Correct 228 ms 25968 KB Output is correct
124 Correct 206 ms 25196 KB Output is correct
125 Correct 187 ms 19800 KB Output is correct
126 Correct 159 ms 21316 KB Output is correct
127 Correct 151 ms 21060 KB Output is correct
128 Correct 144 ms 20932 KB Output is correct
129 Correct 154 ms 19736 KB Output is correct
130 Correct 122 ms 20024 KB Output is correct
131 Correct 129 ms 19908 KB Output is correct
132 Correct 123 ms 19980 KB Output is correct
133 Correct 135 ms 19780 KB Output is correct
134 Correct 118 ms 19900 KB Output is correct
135 Correct 115 ms 19764 KB Output is correct
136 Correct 111 ms 19780 KB Output is correct
137 Correct 123 ms 19828 KB Output is correct
138 Correct 105 ms 19784 KB Output is correct
139 Correct 106 ms 19812 KB Output is correct
140 Correct 103 ms 19784 KB Output is correct
141 Correct 116 ms 19780 KB Output is correct
142 Correct 197 ms 31352 KB Output is correct
143 Correct 200 ms 31392 KB Output is correct
144 Correct 206 ms 31444 KB Output is correct
145 Correct 196 ms 31160 KB Output is correct
146 Correct 194 ms 31044 KB Output is correct
147 Correct 194 ms 30724 KB Output is correct
148 Correct 190 ms 30508 KB Output is correct
149 Correct 195 ms 30320 KB Output is correct
150 Correct 184 ms 30148 KB Output is correct
151 Correct 175 ms 29024 KB Output is correct
152 Correct 96 ms 19784 KB Output is correct
153 Correct 204 ms 31420 KB Output is correct
154 Correct 201 ms 31016 KB Output is correct
155 Correct 194 ms 30844 KB Output is correct
156 Correct 188 ms 30532 KB Output is correct
157 Correct 193 ms 30400 KB Output is correct
158 Correct 190 ms 30168 KB Output is correct
159 Correct 175 ms 29024 KB Output is correct
160 Correct 95 ms 19824 KB Output is correct
161 Correct 225 ms 25576 KB Output is correct
162 Correct 237 ms 25328 KB Output is correct
163 Correct 206 ms 25180 KB Output is correct
164 Correct 203 ms 24904 KB Output is correct
165 Correct 196 ms 24696 KB Output is correct
166 Correct 107 ms 19784 KB Output is correct
167 Correct 167 ms 25360 KB Output is correct
168 Correct 150 ms 25064 KB Output is correct
169 Correct 156 ms 24900 KB Output is correct
170 Correct 147 ms 24732 KB Output is correct
171 Correct 159 ms 24908 KB Output is correct
172 Correct 164 ms 25628 KB Output is correct
173 Correct 248 ms 25604 KB Output is correct
174 Correct 229 ms 25596 KB Output is correct
175 Correct 222 ms 25424 KB Output is correct
176 Correct 222 ms 24384 KB Output is correct