답안 #833851

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
833851	2023-08-22T09:02:51 Z	algorithm16	경주 (Race) (IOI11_race)	C++14	100 / 100	338 ms	63492 KB

race

#include<iostream>
#include<vector>
#include<set>
#include<algorithm>
#include "race.h"
using namespace std;
typedef long long int llint;
vector <pair<int,llint> > v[200005];
set <pair<llint,llint> > s[200005];
llint k1,mn=1e9,h[25][2],l[25];
void f(int x,int y,llint dd,llint ll) {
	if(s[x].size()<s[y].size()) swap(s[x],s[y]);
	for(set <pair<llint,llint> >::iterator it=s[y].begin();it!=s[y].end();it++) {
		llint l=(*it).first,d=(*it).second;
		l-=ll;
		d-=dd;
		set <pair<llint,llint> >::iterator it2=s[x].lower_bound(make_pair(k1-l+ll,-1LL));
		if(it2!=s[x].end() && (*it2).first==k1-l+ll) mn=min(mn,d+(*it2).second-dd);
	}
	for(set <pair<llint,llint> >::iterator it=s[y].begin();it!=s[y].end();) {
		llint l=(*it).first,d=(*it).second;
		l-=ll;
		d-=dd;
		set <pair<llint,llint> >::iterator it2=s[x].lower_bound(make_pair(l+ll,-1LL));
		if(it2==s[x].end() || (*it2).first!=l+ll) s[x].insert((*it));
		else if((*it2).second>(*it).second) {
			s[x].erase(it2);
			s[x].insert((*it));
		}
		it=s[y].erase(it);
	}
}
void dfs(int x,int p,llint d,llint l) {
	s[x].insert(make_pair(l,d));
	for(int i=0;i<v[x].size();i++) {
		if(v[x][i].first==p) continue;
		dfs(v[x][i].first,x,d+1,l+v[x][i].second);
		f(x,v[x][i].first,d,l);
	}
}
int best_path(int n,int k,int h[][2],int l[])
{
	if(!k) return 0;
	k1=k;
	for(int i=0;i<n-1;i++) {
		v[h[i][0]].push_back(make_pair(h[i][1],l[i]));
		v[h[i][1]].push_back(make_pair(h[i][0],l[i]));
	}
	dfs(0,0,0,0);
	if(mn==1e9) mn=-1;
	return mn;
}
/*int main()
{
	int n,k;
	cin >> n >> k;
	for(int i=0;i<n-1;i++) {
		int a,b,l1;
		cin >> a >> b >> l1;
		h[i][0]=a;
		h[i][1]=b;
		l[i]=l1;
	}
	cout << best_path(n,k);
}
*/

Compilation message

race.cpp: In function 'void dfs(int, int, llint, llint)':
race.cpp:35:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |  for(int i=0;i<v[x].size();i++) {
      |              ~^~~~~~~~~~~~

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	14420 KB	Output is correct
2	Correct	7 ms	14400 KB	Output is correct
3	Correct	7 ms	14424 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	7 ms	14420 KB	Output is correct
6	Correct	9 ms	14420 KB	Output is correct
7	Correct	8 ms	14440 KB	Output is correct
8	Correct	8 ms	14420 KB	Output is correct
9	Correct	7 ms	14400 KB	Output is correct
10	Correct	8 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14420 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14420 KB	Output is correct
15	Correct	7 ms	14420 KB	Output is correct
16	Correct	7 ms	14420 KB	Output is correct
17	Correct	7 ms	14420 KB	Output is correct
18	Correct	7 ms	14420 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	14420 KB	Output is correct
2	Correct	7 ms	14400 KB	Output is correct
3	Correct	7 ms	14424 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	7 ms	14420 KB	Output is correct
6	Correct	9 ms	14420 KB	Output is correct
7	Correct	8 ms	14440 KB	Output is correct
8	Correct	8 ms	14420 KB	Output is correct
9	Correct	7 ms	14400 KB	Output is correct
10	Correct	8 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14420 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14420 KB	Output is correct
15	Correct	7 ms	14420 KB	Output is correct
16	Correct	7 ms	14420 KB	Output is correct
17	Correct	7 ms	14420 KB	Output is correct
18	Correct	7 ms	14420 KB	Output is correct
19	Correct	10 ms	14340 KB	Output is correct
20	Correct	7 ms	14420 KB	Output is correct
21	Correct	8 ms	14420 KB	Output is correct
22	Correct	8 ms	14540 KB	Output is correct
23	Correct	10 ms	14548 KB	Output is correct
24	Correct	9 ms	14432 KB	Output is correct
25	Correct	11 ms	14548 KB	Output is correct
26	Correct	9 ms	14420 KB	Output is correct
27	Correct	8 ms	14420 KB	Output is correct
28	Correct	8 ms	14420 KB	Output is correct
29	Correct	9 ms	14548 KB	Output is correct
30	Correct	8 ms	14420 KB	Output is correct
31	Correct	9 ms	14540 KB	Output is correct
32	Correct	9 ms	14420 KB	Output is correct
33	Correct	8 ms	14420 KB	Output is correct
34	Correct	8 ms	14540 KB	Output is correct
35	Correct	8 ms	14548 KB	Output is correct
36	Correct	7 ms	14548 KB	Output is correct
37	Correct	8 ms	14420 KB	Output is correct
38	Correct	8 ms	14420 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	14420 KB	Output is correct
2	Correct	7 ms	14400 KB	Output is correct
3	Correct	7 ms	14424 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	7 ms	14420 KB	Output is correct
6	Correct	9 ms	14420 KB	Output is correct
7	Correct	8 ms	14440 KB	Output is correct
8	Correct	8 ms	14420 KB	Output is correct
9	Correct	7 ms	14400 KB	Output is correct
10	Correct	8 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14420 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14420 KB	Output is correct
15	Correct	7 ms	14420 KB	Output is correct
16	Correct	7 ms	14420 KB	Output is correct
17	Correct	7 ms	14420 KB	Output is correct
18	Correct	7 ms	14420 KB	Output is correct
19	Correct	83 ms	21988 KB	Output is correct
20	Correct	98 ms	22104 KB	Output is correct
21	Correct	82 ms	22000 KB	Output is correct
22	Correct	125 ms	22020 KB	Output is correct
23	Correct	108 ms	22860 KB	Output is correct
24	Correct	84 ms	21816 KB	Output is correct
25	Correct	72 ms	30896 KB	Output is correct
26	Correct	54 ms	38732 KB	Output is correct
27	Correct	130 ms	30652 KB	Output is correct
28	Correct	227 ms	63492 KB	Output is correct
29	Correct	224 ms	61900 KB	Output is correct
30	Correct	132 ms	30540 KB	Output is correct
31	Correct	128 ms	30544 KB	Output is correct
32	Correct	158 ms	30804 KB	Output is correct
33	Correct	188 ms	29900 KB	Output is correct
34	Correct	259 ms	42096 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	14420 KB	Output is correct
2	Correct	7 ms	14400 KB	Output is correct
3	Correct	7 ms	14424 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	7 ms	14420 KB	Output is correct
6	Correct	9 ms	14420 KB	Output is correct
7	Correct	8 ms	14440 KB	Output is correct
8	Correct	8 ms	14420 KB	Output is correct
9	Correct	7 ms	14400 KB	Output is correct
10	Correct	8 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14420 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14420 KB	Output is correct
15	Correct	7 ms	14420 KB	Output is correct
16	Correct	7 ms	14420 KB	Output is correct
17	Correct	7 ms	14420 KB	Output is correct
18	Correct	7 ms	14420 KB	Output is correct
19	Correct	10 ms	14340 KB	Output is correct
20	Correct	7 ms	14420 KB	Output is correct
21	Correct	8 ms	14420 KB	Output is correct
22	Correct	8 ms	14540 KB	Output is correct
23	Correct	10 ms	14548 KB	Output is correct
24	Correct	9 ms	14432 KB	Output is correct
25	Correct	11 ms	14548 KB	Output is correct
26	Correct	9 ms	14420 KB	Output is correct
27	Correct	8 ms	14420 KB	Output is correct
28	Correct	8 ms	14420 KB	Output is correct
29	Correct	9 ms	14548 KB	Output is correct
30	Correct	8 ms	14420 KB	Output is correct
31	Correct	9 ms	14540 KB	Output is correct
32	Correct	9 ms	14420 KB	Output is correct
33	Correct	8 ms	14420 KB	Output is correct
34	Correct	8 ms	14540 KB	Output is correct
35	Correct	8 ms	14548 KB	Output is correct
36	Correct	7 ms	14548 KB	Output is correct
37	Correct	8 ms	14420 KB	Output is correct
38	Correct	8 ms	14420 KB	Output is correct
39	Correct	83 ms	21988 KB	Output is correct
40	Correct	98 ms	22104 KB	Output is correct
41	Correct	82 ms	22000 KB	Output is correct
42	Correct	125 ms	22020 KB	Output is correct
43	Correct	108 ms	22860 KB	Output is correct
44	Correct	84 ms	21816 KB	Output is correct
45	Correct	72 ms	30896 KB	Output is correct
46	Correct	54 ms	38732 KB	Output is correct
47	Correct	130 ms	30652 KB	Output is correct
48	Correct	227 ms	63492 KB	Output is correct
49	Correct	224 ms	61900 KB	Output is correct
50	Correct	132 ms	30540 KB	Output is correct
51	Correct	128 ms	30544 KB	Output is correct
52	Correct	158 ms	30804 KB	Output is correct
53	Correct	188 ms	29900 KB	Output is correct
54	Correct	259 ms	42096 KB	Output is correct
55	Correct	17 ms	15568 KB	Output is correct
56	Correct	12 ms	15060 KB	Output is correct
57	Correct	52 ms	22388 KB	Output is correct
58	Correct	42 ms	20292 KB	Output is correct
59	Correct	70 ms	37604 KB	Output is correct
60	Correct	221 ms	59468 KB	Output is correct
61	Correct	153 ms	29388 KB	Output is correct
62	Correct	129 ms	27660 KB	Output is correct
63	Correct	163 ms	27868 KB	Output is correct
64	Correct	332 ms	34620 KB	Output is correct
65	Correct	338 ms	39376 KB	Output is correct
66	Correct	238 ms	55116 KB	Output is correct
67	Correct	105 ms	26372 KB	Output is correct
68	Correct	243 ms	37592 KB	Output is correct
69	Correct	270 ms	37576 KB	Output is correct
70	Correct	240 ms	36580 KB	Output is correct

답안 #833851

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 12.0 / 12.0

Subtask #3 22.0 / 22.0

Subtask #4 57.0 / 57.0

Subtask #1
9.0 / 9.0

Subtask #2
12.0 / 12.0

Subtask #3
22.0 / 22.0

Subtask #4
57.0 / 57.0