제출 #442899

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
442899		Abrar_Al_Samit	Drvca (COCI19_drvca)	C++17	0 / 110	39 ms	2244 KiB

drvca

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;


#define debug(x) cerr << '[' << (#x) << "] = " << x << '\n';

template<class T> using ordered_set = tree<T, null_type , less<T> , rb_tree_tag , tree_order_statistics_node_update> ;

void PlayGround() {
    int N; cin >> N;
    vector<int>a(N);
    for(int i=0; i<N; ++i) cin >> a[i];
    sort(a.begin(), a.end());

    if(N < 4) {
        cout << 1 << '\n' << a[0] << '\n' << N-1 << '\n';
        for(int i=1; i<N; ++i) cout << a[i] << ' ';
        cout << '\n';
        return;
    }

    vector<int>b = {0, 1, 2};
    do {
        vector<int>x = {a[b[0]], a[b[1]]};
        vector<int>y;
        if(x[0]>x[1]) swap(x[0], x[1]);
        int dif = x[1] - x[0];
        if(a[b[2]]-x.back()==dif || x[0]-a[b[2]]==dif) x.push_back(a[b[2]]), sort(x.begin(), x.end());
        else y.push_back(a[b[2]]);

        //debug(x[0]) debug(x[1]) debug(y[0]) debug(y[1])

        for(int i=3; i<N; ++i) {
            if(a[i]-x.back()==x[1]-x[0]) x.push_back(a[i]);
            else if(y.size()<2 || a[i]-y.back()==y[1]-y[0]) y.push_back(a[i]);
            else break;
        }
        if(x.size()+y.size()==N) {
            if(y.empty()) y.push_back(x.back()), x.pop_back();
            cout << x.size() << '\n';
            for(auto it : x) cout << it << ' ';
            cout << '\n';
            cout << y.size() << '\n';
            for(auto it : y) cout << it << ' ';
            cout << "\n";
            return;
        }
    } while(next_permutation(b.begin(), b.end()));
    cout << -1 << '\n';

   
    #ifndef ONLINE_JUDGE
        cerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
    #endif
} 
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    // #ifndef ONLINE_JUDGE
    //     freopen("input.txt", "r", stdin);
    // #endif
    PlayGround();

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

drvca.cpp: In function 'void PlayGround()':
drvca.cpp:42:29: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |         if(x.size()+y.size()==N) {
      |            ~~~~~~~~~~~~~~~~~^~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 30
• Subtask 4: 0 / 30