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답안 #1071997

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1071997 2024-08-23T13:10:22 Z Mihailo 가장 긴 여행 (IOI23_longesttrip) C++17
15 / 100
 1000 ms 600 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define pll pair<long long, long long>
#define MOD 1000000007ll
#define xx first
#define yy second
using namespace std;
typedef long long ll;
mt19937 mt(169);

bool are_connected(vector<int> A, vector<int> B);

vector<int> sh;
int cnt=0;

bool query(vector<int> a, vector<int> b) {
    cnt++;
    if(a.empty()||b.empty()) while (true);
    vector<int> A, B;
    for(int i=0; i<a.size(); i++) A.pb(sh[a[i]]);
    for(int i=0; i<b.size(); i++) B.pb(sh[b[i]]);
    /*for(int i:a) cout<<i<<' ';
    cout<<'\n';
    for(int i:b) cout<<i<<' ';
    cout<<'\n';*/
    return are_connected(A, B);
}

int cur, zadnji, sled, bound=450;
bool nema;
vector<int> put, klika;

int ko(int jedan, vector<int> vise, int l, int r) {
    if(l==r) return l;
    vector<int> a, b;
    a.pb(jedan);
    int m=(l+r)/2;
    for(int i=l; i<=m; i++) b.pb(vise[i]);
    if(query(a, b)) return ko(jedan, vise, l, m);
    else return ko(jedan, vise, m+1, r);
}

int komnogo(vector<int> jedan, vector<int> vise, int l, int r) {
    if(l==r) return l;
    vector<int> a, b;
    a=jedan;
    int m=(l+r)/2;
    for(int i=l; i<=m; i++) b.pb(vise[i]);
    if(query(a, b)) return komnogo(jedan, vise, l, m);
    else return komnogo(jedan, vise, m+1, r);
}

vector<int> vrati(vector<int> v) {
    vector<int> rez;
    for(int i:v) rez.pb(sh[i]);
    return rez;
}

vector<int> longest_trip(int N, int D) {
    cnt=0;
    sh.clear();
    for(int i=0; i<N; i++) sh.pb(i);
    shuffle(sh.begin(), sh.end(), mt);
    //for(int i=0; i<N; i++) cout<<sh[i]<<' ';
    //cout<<'\n';
    cur=0;
    zadnji=0;
    klika.clear();
    put.clear();
    put.pb(0);
    vector<int> a, b;
    while(zadnji<N-1) {
        if(zadnji<cur) while (true);
        a.clear();
        b.clear();
        if(klika.empty()) {
            a.pb(cur);
            b.pb(zadnji+1);
            if(query(a, b)) {
                cur=zadnji+1;
                put.pb(cur);
                zadnji=max(cur, zadnji);
                continue;
            }
            klika.pb(zadnji+1);
            zadnji=max(zadnji, klika.back());
            nema=true;
        }
        else {
            //cout<<cur<<' '<<zadnji<<' '<<klika.back()<<' '<<nema<<'\n';
            sled=zadnji+1;
            if(nema) {
                a.pb(cur);
                b.pb(sled);
                if(query(a, b)) {
                    cur=sled;
                    put.pb(cur);
                    zadnji=max(cur, zadnji);
                    nema=false;
                }
                else {
                    klika.pb(sled);
                    zadnji=max(klika.back(), zadnji);
                }
                continue;
            }
            bool test;
            a.pb(cur);
            klika.pb(sled);
            test=query(a, klika);
            klika.pop_back();
            if(test) {
                if(query(a, klika)) {
                    sled=klika[ko(cur, klika, 0, klika.size()-1)];
                    put.pb(sled);
                    for(int i:klika) {
                        if(i!=sled) {
                            put.pb(i);
                            cur=i;
                        }
                    }
                    if(klika.size()==1) cur=sled;
                    klika.clear();
                    continue;
                }
                nema=false;
                cur=sled;
                put.pb(cur);
                zadnji=max(cur, zadnji);
                continue;
            }
            else {
                nema=true;
                klika.pb(sled);
                zadnji=max(zadnji, klika.back());
            }
        }
    }
    if((!put.empty())&&(!klika.empty())&&query(put, klika)) {
        a.clear();
        b.clear();
        a.pb(put[0]);
        if(query(a, klika)) {
            sled=klika[ko(put[0], klika, 0, klika.size()-1)];
            reverse(put.begin(), put.end());
            put.pb(sled);
            for(int i:klika) if(i!=sled) put.pb(i);
            if(cnt>bound) while(true);
            return vrati(put);
        }
        a.clear();
        a.pb(put.back());
        if(query(a, klika)) {
            sled=klika[ko(put.back(), klika, 0, klika.size()-1)];
            put.pb(sled);
            for(int i:klika) if(i!=sled) put.pb(i);
            if(cnt>bound) while(true);
            return vrati(put);
        }
        cur=put[komnogo(klika, put, 0, put.size())];
        sled=klika[ko(cur, klika, 0, klika.size()-1)];
        nema=false;
        for(int i:put) {
            if(nema) b.pb(i);
            if(i==cur) nema=true;
        }
        for(int i:put) {
            b.pb(i);
            if(i==cur) break;
        }
        b.pb(sled);
        for(int i:klika) if(i!=sled) b.pb(i);
        return vrati(b);
    }
    else {
        if(cnt>bound) while(true);
        if(put.size()>klika.size()) return vrati(put);
        else return vrati(klika);
    }
}

Compilation message

longesttrip.cpp: In function 'bool query(std::vector<int>, std::vector<int>)':
longesttrip.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for(int i=0; i<a.size(); i++) A.pb(sh[a[i]]);
      |                  ~^~~~~~~~~
longesttrip.cpp:22:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for(int i=0; i<b.size(); i++) B.pb(sh[b[i]]);
      |                  ~^~~~~~~~~

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 5 ms 344 KB Output is correct
2 Correct 6 ms 344 KB Output is correct
3 Correct 8 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 7 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

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

Subtask #3
0.0 / 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 7 ms 344 KB Output is correct
4 Correct 7 ms 344 KB Output is correct
5 Correct 6 ms 344 KB Output is correct
6 Correct 8 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 5 ms 344 KB Output is correct
10 Correct 5 ms 596 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 6 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 6 ms 344 KB Output is correct
15 Correct 6 ms 344 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 8 ms 444 KB Output is correct
18 Correct 7 ms 344 KB Output is correct
19 Correct 7 ms 344 KB Output is correct
20 Correct 10 ms 344 KB Output is correct
21 Correct 6 ms 344 KB Output is correct
22 Correct 6 ms 440 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 7 ms 344 KB Output is correct
25 Correct 6 ms 344 KB Output is correct
26 Correct 6 ms 344 KB Output is correct
27 Correct 9 ms 596 KB Output is correct
28 Correct 10 ms 344 KB Output is correct
29 Correct 8 ms 344 KB Output is correct
30 Correct 9 ms 436 KB Output is correct
31 Correct 14 ms 344 KB Output is correct
32 Correct 11 ms 344 KB Output is correct
33 Correct 7 ms 344 KB Output is correct
34 Correct 10 ms 344 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 5 ms 344 KB Output is correct
37 Execution timed out 3059 ms 440 KB Time limit exceeded
38 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# 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 8 ms 600 KB Output is correct
5 Correct 7 ms 344 KB Output is correct
6 Correct 8 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 5 ms 340 KB Output is correct
10 Correct 6 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 7 ms 344 KB Output is correct
15 Correct 6 ms 344 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 8 ms 344 KB Output is correct
18 Correct 8 ms 440 KB Output is correct
19 Correct 7 ms 344 KB Output is correct
20 Correct 8 ms 600 KB Output is correct
21 Correct 7 ms 344 KB Output is correct
22 Correct 5 ms 344 KB Output is correct
23 Correct 8 ms 344 KB Output is correct
24 Correct 8 ms 344 KB Output is correct
25 Correct 8 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 6 ms 344 KB Output is correct
29 Correct 7 ms 344 KB Output is correct
30 Correct 12 ms 344 KB Output is correct
31 Correct 9 ms 344 KB Output is correct
32 Correct 14 ms 344 KB Output is correct
33 Correct 9 ms 344 KB Output is correct
34 Correct 10 ms 344 KB Output is correct
35 Correct 12 ms 344 KB Output is correct
36 Correct 9 ms 344 KB Output is correct
37 Correct 7 ms 344 KB Output is correct
38 Correct 13 ms 600 KB Output is correct
39 Correct 9 ms 344 KB Output is correct
40 Correct 7 ms 344 KB Output is correct
41 Correct 8 ms 452 KB Output is correct
42 Correct 10 ms 444 KB Output is correct
43 Correct 5 ms 344 KB Output is correct
44 Correct 5 ms 344 KB Output is correct
45 Correct 5 ms 344 KB Output is correct
46 Correct 5 ms 344 KB Output is correct
47 Partially correct 7 ms 344 KB Output is partially correct
48 Execution timed out 3063 ms 344 KB Time limit exceeded
49 Halted 0 ms 0 KB -