Submission #1144965

#	Time	Username	Problem	Language	Result	Execution time	Memory
1144965		arafatenok	Table Tennis (info1cup20_tabletennis)	C++17	20 / 100	3093 ms	5232 KiB

tabletennis

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization("unroll-loops")
#pragma ("reroll")
#define skip continue;
#define gold ios_base::sync_with_stdio(false);cin.tie(NULL);
#define xa "\n"
#define int long long
#define all(a) a.begin(), a.end()
#define pb push_back
#define F first
#define S second
using namespace std;

const int mod = 1e9 + 7;
const int N = 1e5 + 7;
const int MAX = 1e9;
const int inf = 1e18;

int gcd(int a, int b) { if (b == 0) return a; else if(a == 0) return b; else return gcd(b, a % b); }
int lcm(int a, int b) { return a / gcd(a, b) * b; }

void solve() {
    int n, k;
    cin >> n >> k;
    int a[n + k + 1];
    for(int i = 1; i <= n + k; i++){
        cin >> a[i];
    }
    if(n + k <= 20){
        int b[n + k];
        for(int i = 1; i <= n + k; i++){
            b[i - 1] = a[i];
        }
        sort(b, b + n + k);
        for(int msk = 0; msk < (1 << (n + k)); msk++){
            int cnt = 0;
            for(int i = 0; i < n + k; i++){
                if(msk & (1 << i)){
                    cnt++;
                }
            }
            if(cnt != k){
                skip;
            }
            vector < int > v;
            for(int i = 0; i < n + k; i++){
                if(!(msk & (1 << i))){
                    v.pb(b[i]);
                }
            }
            set < int > ms;
            for(int i = 0; i < v.size() / 2; i++){
                 ms.insert(v[i] + v[v.size() - 1 - i]);
            }
            if(ms.size() == 1){
                for(int x : v){
                    cout << x << ' ';
                }
                return;
            }
        }
    }
    else if(k == 1){
        sort(a + 1, a + n + k + 1);
        for(int i = 1; i <= n + k; i++){
            vector < int > v;
            for(int j = 1; j <= n + k; j++){
                if(i == j) skip;
                v.pb(a[j]);
            }
            set < int > ms;
            for(int j = 0; j < v.size() / 2; j++){
                ms.insert(v[j] + v[v.size() - 1 - j]);
            }
            if(ms.size() == 1){
                for(int x : v){
                    cout << x << ' ';
                }
                return;
            }
        }
    }
}

signed main() {
    gold;
    //freopen("sum2.in", "r", stdin);
    //freopen("sum2.out", "w", stdout);
    int t = 1;
    int ti = 1;
    //cin >> t;
    while (t--) {
        //cout << "Case " << ti << ": ";
        solve();
        ti++;
    }
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 9
• Subtask 3: 0 / 14
• Subtask 4: 0 / 15
• Subtask 5: 9 / 9
• Subtask 6: 0 / 14
• Subtask 7: 0 / 15
• Subtask 8: 0 / 13