oj.uz

답안 #240425

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
240425 2020-06-19T15:49:56 Z oscarsierra12 꿈 (IOI13_dreaming) C++14
0 / 100
 278 ms 27192 KB 
#include "dreaming.h"
#include <iostream>
#include <stdio.h>
#include <fstream>
#include <string.h>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <list>
#include <set>
#include <deque>
#include <utility>
#include <sstream>
#include <queue>
#include <stack>
#include <bitset>
#include <math.h>
#include <algorithm>
#include <limits.h>

using namespace std ;
const int N = 1e5+2;

#define  ff    first
#define  ss    second
#define  pb    push_back

vector <int> ans, cur ;
int best = 0 ;
int visit[N];
vector <pair<int,int> > G[N] ;
int node = 0 ;
map <pair<int,int>, int > dis ;

void fnd ( int u, int p, int d, int flag ) {
    cur.push_back ( u ) ;
    visit[u] = 1;
    for ( auto v:G[u] ) {
        if ( v.ff == p ) continue ;
        fnd ( v.ff, u, d + v.ss, flag ) ;
    }
    if ( d >= best ) {
        best = d;
        if ( flag && u == node ) ans = cur ;
        if ( !flag ) node = u ;
    }
    cur.pop_back() ;
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    for ( int i = 0 ; i < M ; ++i ) G[A[i]].pb ( make_pair (B[i], T[i]) ), G[B[i]].pb ( make_pair(A[i], T[i]) ), dis[make_pair(A[i], B[i])] = dis[make_pair(B[i],A[i])] = T[i] ;
    vector <int> toAn ;
    for ( int i = 0 ; i < N ; ++i ) {
        if ( visit[i] ) continue;
        best = 0 ;
        fnd ( i, -1, 0,0 ) ;
        best = 0 ;
        int nod = node ;
        fnd ( nod, -1, 0,0 ) ;
        fnd ( nod,-1,0,1) ;
        vector <int> diLeft, diRg ;
        diLeft.push_back (0) ;
        diRg.push_back (0) ;
        int lft = 0, rg = 0 ;
        for ( int j = 1 ; j < ans.size() ; ++j ) {
            lft += dis [ make_pair(ans[j], ans[j-1]) ] ;
            diLeft.push_back(lft) ;
        }
        int sz = ans.size() ;
        for ( int j = sz-2 ; j >= 0 ; --j ) {
            rg += dis[make_pair(ans[j], ans[j+1])] ;
            diRg.push_back (rg) ;
        }
        reverse ( diRg.begin(), diRg.end() ) ;
        int an = INT_MAX ;
        for ( int i = 0 ; i < ans.size() ; ++i ) {
            an = min ( an, max (diRg[i], diLeft[i]) ) ;
        }
        toAn.push_back ( an );
    }
    sort ( toAn.begin(), toAn.end() ) ;
    int mx = toAn.back() + L ;
    toAn.pop_back() ;
    mx += toAn.back() ;
    int scP = toAn.back() + 2 * L ;
    if ( toAn.size() == 0 ) return mx ;
    toAn.pop_back() ;
    scP += toAn.back() ;
    return max ( scP, mx ) ;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:66:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for ( int j = 1 ; j < ans.size() ; ++j ) {
                           ~~^~~~~~~~~~~~
dreaming.cpp:77:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for ( int i = 0 ; i < ans.size() ; ++i ) {
                           ~~^~~~~~~~~~~~

Subtask #1
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 278 ms 27192 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 278 ms 27192 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 278 ms 27192 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 87 ms 10104 KB Output is correct
2 Correct 95 ms 10108 KB Output is correct
3 Correct 87 ms 10104 KB Output is correct
4 Correct 91 ms 10104 KB Output is correct
5 Correct 87 ms 10104 KB Output is correct
6 Correct 99 ms 10804 KB Output is correct
7 Correct 99 ms 10488 KB Output is correct
8 Correct 85 ms 9976 KB Output is correct
9 Correct 84 ms 9848 KB Output is correct
10 Correct 89 ms 10516 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 23 ms 3836 KB Output is correct
13 Correct 20 ms 3840 KB Output is correct
14 Correct 20 ms 3836 KB Output is correct
15 Correct 21 ms 3840 KB Output is correct
16 Correct 19 ms 3708 KB Output is correct
17 Correct 22 ms 3708 KB Output is correct
18 Correct 20 ms 3836 KB Output is correct
19 Correct 20 ms 3708 KB Output is correct
20 Incorrect 6 ms 2688 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 278 ms 27192 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 278 ms 27192 KB Output isn't correct
2 Halted 0 ms 0 KB -