답안 #17351 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
17351	2015-11-24T22:36:43 Z	comet	꿈 (IOI13_dreaming)	C++	14 / 100	62 ms	11896 KB

dreaming

#include <cstdio>
#include <algorithm>
#include <vector>
#include "dreaming.h"
using namespace std;
typedef pair<int,int> pp;
typedef vector<pp> vec;
typedef vector<vec> mat;
#define pb push_back

int N;
int subsz[100000],subsz2[100000];
int vi[100000],vi2[100000];
int Max,len[100000],ans;
bool chk[100000];
vec s;
mat path;

void dfs(int v,int p){
	chk[v]=1;
	for(int i=0;i<path[v].size();i++){
		int u=path[v][i].first;
		int c=path[v][i].second;
		if(u==p)continue;
		dfs(u,v);
		int t=subsz[u]+c;
		if(subsz[v]<t){
			subsz2[v]=subsz[v];vi2[v]=vi[v];
			subsz[v]=t;vi[v]=u;
		}else if(subsz2[v]<t){
			subsz2[v]=t;vi2[v]=u;
		}
	}
}

void dfs2(int v,int p,int h){
	Max=min(Max,max(h,max(subsz[v],subsz2[v])));
	ans=max(ans,subsz[v]+subsz2[v]);
	chk[v]=0;
	for(int i=0;i<path[v].size();i++){
		int u=path[v][i].first;
		int c=path[v][i].second;
		if(u==p)continue;
		if(u==vi[v]){
			dfs2(u,v,max(h,subsz2[v])+c);
		}else if(u==vi2[v]){
			dfs2(u,v,max(h,subsz[v])+c);
		}
	}
}

int travelTime(int N_, int M, int L, int A[], int B[], int T[]) {
	N=N_;
	path.assign(N+1,vec());
	for(int i=0;i<M;i++){
		path[A[i]].pb(pp(B[i],T[i]));
		path[B[i]].pb(pp(A[i],T[i]));
	}
	for(int i=0;i<N;i++){
		if(!chk[i]){
			dfs(i,i);
		}
	}

	for(int i=0;i<N;i++){
		if(chk[i]){
			Max=1e9;
			dfs2(i,i,0);
			len[i]=Max;
			s.pb(pp(len[i],i));
		}
	}

	sort(s.begin(),s.end());
	if(s.size()==1)return max(ans,s[0].first);
	return max(ans,s[s.size()-1].first+s[s.size()-2].first+L);
}

Compilation message

dreaming.cpp: In function 'void dfs(int, int)':
dreaming.cpp:21:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<path[v].size();i++){
              ~^~~~~~~~~~~~~~~
dreaming.cpp: In function 'void dfs2(int, int, int)':
dreaming.cpp:40:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<path[v].size();i++){
              ~^~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	11896 KB	Output is correct
2	Correct	56 ms	11512 KB	Output is correct
3	Correct	43 ms	9336 KB	Output is correct
4	Correct	9 ms	2048 KB	Output is correct
5	Correct	7 ms	1408 KB	Output is correct
6	Correct	14 ms	2944 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	27 ms	5248 KB	Output is correct
9	Correct	34 ms	7672 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	53 ms	8824 KB	Output is correct
12	Correct	62 ms	10232 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct

Subtask #2
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	11896 KB	Output is correct
2	Correct	56 ms	11512 KB	Output is correct
3	Correct	43 ms	9336 KB	Output is correct
4	Correct	9 ms	2048 KB	Output is correct
5	Correct	7 ms	1408 KB	Output is correct
6	Correct	14 ms	2944 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	27 ms	5248 KB	Output is correct
9	Correct	34 ms	7672 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	53 ms	8824 KB	Output is correct
12	Correct	62 ms	10232 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	3 ms	304 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	2 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	2 ms	256 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Incorrect	2 ms	356 KB	Output isn't correct
31	Halted	0 ms	0 KB	-

Subtask #3
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	11896 KB	Output is correct
2	Correct	56 ms	11512 KB	Output is correct
3	Correct	43 ms	9336 KB	Output is correct
4	Correct	9 ms	2048 KB	Output is correct
5	Correct	7 ms	1408 KB	Output is correct
6	Correct	14 ms	2944 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	27 ms	5248 KB	Output is correct
9	Correct	34 ms	7672 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	53 ms	8824 KB	Output is correct
12	Correct	62 ms	10232 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	3 ms	304 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	2 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	2 ms	256 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Incorrect	2 ms	356 KB	Output isn't correct
31	Halted	0 ms	0 KB	-

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	7412 KB	Output is correct
2	Incorrect	35 ms	7420 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	11896 KB	Output is correct
2	Correct	56 ms	11512 KB	Output is correct
3	Correct	43 ms	9336 KB	Output is correct
4	Correct	9 ms	2048 KB	Output is correct
5	Correct	7 ms	1408 KB	Output is correct
6	Correct	14 ms	2944 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	27 ms	5248 KB	Output is correct
9	Correct	34 ms	7672 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	53 ms	8824 KB	Output is correct
12	Correct	62 ms	10232 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	512 KB	Output is correct
15	Correct	4 ms	512 KB	Output is correct
16	Correct	3 ms	640 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	512 KB	Output is correct
19	Correct	3 ms	640 KB	Output is correct
20	Incorrect	2 ms	384 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	11896 KB	Output is correct
2	Correct	56 ms	11512 KB	Output is correct
3	Correct	43 ms	9336 KB	Output is correct
4	Correct	9 ms	2048 KB	Output is correct
5	Correct	7 ms	1408 KB	Output is correct
6	Correct	14 ms	2944 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	27 ms	5248 KB	Output is correct
9	Correct	34 ms	7672 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	53 ms	8824 KB	Output is correct
12	Correct	62 ms	10232 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	3 ms	304 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	2 ms	384 KB	Output is correct
26	Correct	2 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	2 ms	256 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Incorrect	2 ms	356 KB	Output isn't correct
31	Halted	0 ms	0 KB	-

답안 #17351

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 0 / 10.0

Subtask #3 0 / 23.0

Subtask #4 0 / 18.0

Subtask #5 0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
0 / 10.0

Subtask #3
0 / 23.0

Subtask #4
0 / 18.0

Subtask #5
0 / 12.0

Subtask #6
0 / 23.0