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답안 #1068975

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1068975 2024-08-21T13:59:03 Z Malix 가장 긴 여행 (IOI23_longesttrip) C++17
40 / 100
 438 ms 600 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
typedef tuple<int,int,int> tii;
typedef vector<ll> li;
typedef vector<li> lii;
 
#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define LSOne(s) ((s)&(-s))
 
ll INF=1e18+10;
int inf=1e9+10;
ll M=1e9+7;

int solve(int bk,int p,int n){
    vi a,b,x;
    x.PB(bk);
    REP(i,p,n){
        a.clear();
        a.PB(x.back());
        b.clear();
        b.PB(i);
        if(are_connected(a,b))x.PB(i);
        else return i;
    }
    return n;
}

std::vector<int> longest_trip(int n, int d)
{
    if(d==3){
        vi ans;
        REP(i,0,n)ans.PB(i);
        return ans;
    }
    if(d==2){
        deque<int> dq;
        vi a,b;
        a.PB(0);b.PB(1);
        if(are_connected(a,b)){
            dq.PB(0);
            dq.PB(1);
            b.pop_back();b.PB(2);
            if(are_connected(a,b))dq.push_front(2);
            else dq.push_back(2);
        }
        else{
            dq.PB(0);
            dq.PB(2);
            dq.PB(1);
        }
        REP(i,3,n){
            a.clear();b.clear();
            a.PB(dq.back());b.PB(i);
            if(are_connected(a,b))dq.push_back(i);
            else dq.push_front(i);
        }
        vi ans;
        REP(i,0,n){
            ans.PB(dq.front());
            dq.pop_front();
        }
        return ans;
    }
    vi a,b,x,y;
    x.PB(0);
    int tm=solve(0,1,n);
    REP(i,1,tm)x.PB(i);
    if(tm!=n)y.PB(tm);
    if(y.empty())return x;
    int pos=tm+1;
    while(pos<n){
        a.clear();b.clear();
        a.PB(x.back());b.PB(pos);
        bool f1=are_connected(a,b);
        a.clear();b.clear();
        a.PB(y.back());b.PB(pos);
        bool f2=are_connected(a,b);
        if(f1&&f2){
            x.PB(pos);
            reverse(y.begin(),y.end());
            for(auto u:y)x.PB(u);
            y.clear();
            int tmp=solve(x.back(),pos+1,n);
            REP(i,pos+1,tmp)x.PB(i);
            if(tmp==n)return x;
            y.PB(tmp);
            pos=tmp+1;
        }
        else if(f1){
            x.PB(pos);
            pos++;
        }
        else if(f2){
            y.PB(pos);
            pos++;
        }
        else{
            reverse(y.begin(),y.end());
            for(auto u:y)x.PB(u);
            y.clear();
            int tmp=solve(x.back(),pos,n);
            REP(i,pos,tmp)x.PB(i);
            if(tmp==n)return x;
            y.PB(tmp);
            pos=tmp+1;
        }
    }
    if(x.size()==n)return x;
    a.clear();b.clear();
    a.PB(x.front());b.PB(y.front());
    if(are_connected(a,b)){
        reverse(x.begin(),x.end());
        for(auto u:y)x.PB(u);
        return x;
    }
    a.clear();b.clear();
    a.PB(x.front());b.PB(y.back());
    if(are_connected(a,b)){
        reverse(x.begin(),x.end());
        reverse(y.begin(),y.end());
        for(auto u:y)x.PB(u);
        return x;
    }
    a.clear();b.clear();
    a.PB(x.back());b.PB(y.front());
    if(are_connected(a,b)){
        for(auto u:y)x.PB(u);
        return x;
    }
    a.clear();b.clear();
    a.PB(x.back());b.PB(y.back());
    if(are_connected(a,b)){
        reverse(y.begin(),y.end());
        for(auto u:y)x.PB(u);
        return x;
    }
    int s1=x.size(),s2=y.size();
    REP(i,1,s1-1)REP(j,1,s2-1){
        a.clear();b.clear();
        a.PB(x[i]);b.PB(y[j]);
        if(are_connected(a,b)){
            vi ans;
            REP(k,i+1,s1)ans.PB(x[k]);
            REP(k,0,i+1)ans.PB(x[k]);
            REP(k,j,s2)ans.PB(y[k]);
            REP(k,0,j)ans.PB(y[k]);
            return ans;
        }
    }
    if(x.size()>=y.size())return x;
    else return y;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:119:16: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  119 |     if(x.size()==n)return x;
      |        ~~~~~~~~^~~

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 2 ms 344 KB Output is correct

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 6 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 3 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 6 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 7 ms 344 KB Output is correct
8 Correct 7 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 12 ms 344 KB Output is correct
15 Correct 7 ms 344 KB Output is correct
16 Correct 7 ms 344 KB Output is correct
17 Correct 7 ms 344 KB Output is correct
18 Correct 5 ms 344 KB Output is correct
19 Correct 6 ms 344 KB Output is correct
20 Correct 6 ms 344 KB Output is correct
21 Correct 6 ms 344 KB Output is correct
22 Correct 5 ms 344 KB Output is correct
23 Correct 4 ms 340 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 14 ms 344 KB Output is correct
26 Correct 11 ms 344 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 9 ms 344 KB Output is correct
29 Correct 8 ms 344 KB Output is correct
30 Correct 12 ms 344 KB Output is correct
31 Correct 77 ms 344 KB Output is correct
32 Correct 89 ms 344 KB Output is correct
33 Correct 6 ms 344 KB Output is correct
34 Correct 12 ms 344 KB Output is correct
35 Correct 25 ms 344 KB Output is correct
36 Correct 10 ms 340 KB Output is correct
37 Correct 53 ms 344 KB Output is correct
38 Correct 213 ms 344 KB Output is correct
39 Correct 349 ms 344 KB Output is correct
40 Correct 365 ms 344 KB Output is correct
41 Correct 426 ms 344 KB Output is correct
42 Correct 438 ms 344 KB Output is correct
43 Correct 414 ms 344 KB Output is correct
44 Correct 435 ms 344 KB Output is correct
45 Correct 7 ms 344 KB Output is correct
46 Correct 7 ms 344 KB Output is correct
47 Correct 8 ms 344 KB Output is correct
48 Correct 8 ms 344 KB Output is correct
49 Correct 6 ms 344 KB Output is correct
50 Correct 7 ms 344 KB Output is correct
51 Correct 48 ms 344 KB Output is correct
52 Correct 40 ms 344 KB Output is correct
53 Correct 10 ms 436 KB Output is correct
54 Correct 11 ms 344 KB Output is correct
55 Correct 19 ms 600 KB Output is correct
56 Correct 9 ms 344 KB Output is correct
57 Correct 32 ms 344 KB Output is correct
58 Correct 128 ms 344 KB Output is correct
59 Correct 243 ms 432 KB Output is correct
60 Correct 337 ms 344 KB Output is correct
61 Correct 71 ms 344 KB Output is correct
62 Correct 222 ms 344 KB Output is correct
63 Correct 222 ms 344 KB Output is correct
64 Correct 285 ms 344 KB Output is correct

Subtask #4
0.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 6 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 9 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 8 ms 600 KB Output is correct
12 Correct 8 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 12 ms 344 KB Output is correct
15 Correct 12 ms 344 KB Output is correct
16 Incorrect 0 ms 344 KB Incorrect
17 Halted 0 ms 0 KB -