Submission #1252581

#	Time	Username	Problem	Language	Result	Execution time	Memory
1252581		al95ireyiz	Table Tennis (info1cup20_tabletennis)	C++20	20 / 100	3095 ms	10056 KiB

tabletennis

//*** Bismillah ***//
#pragma GCC optimize("O3", "fast-math", "unroll-loops", "no-stack-protector")
#include <bits/stdc++.h>
using namespace std;
#if !defined(ONLINE_JUDGE) and !defined(EVAL)
#include "template/debug.h"
#else
#define d(x...)
#endif
#define fr first
#define er erase
#define sc second
#define in insert
#define ll long long
#define pb push_back
#define vll vector<ll>
#define pll pair<ll,ll>
#define ull unsigned ll
#define vpll vector<pll>
#define len(x) (ll) x.size()
#define all(x) x.begin(),x.end()
const ll INF = 1e9;
const ll INFL = 1e18;
const ll MOD = 1e9+7;
// const ll MOD = 998244353;
const ll maxn = 2e5+5;
ll n,m,k=0;
ll a[maxn];
bitset<maxn>v;
ll f(ll i = 1, ll q = m){
    if(q < 0) return 0;
    if(i == n + m + 1){
        if(q != 0) return 0;
        ll l = 1, r = n + m, bf = -1;
        while(l < r){
            if(v[l]){
                l ++;
                continue;
            }
            if(v[r]){
                r --;
                continue;
            }
            if(bf == -1){
                bf = a[l] + a[r];
            }
            else{
                if(a[l] + a[r] != bf) return 0;
            }
            l ++, r --;
        }
        return 1;
    }
    v[i] = 1;
    if(f(i + 1, q - 1)) return 1;
    v[i] = 0;
    if(f(i + 1, q)) return 1;
    return 0;
}
void _(ll &tt){
    cin >> n >> m;
    for(ll i = 1; i <= n + m; i ++){
        cin >> a[i];
    }
    sort(a + 1, a + n + 1);
    f();
    for(ll i = 1; i <= n + m; i ++){
        if(v[i]) continue;
        cout << a[i] << ' ';
    }
}
signed main() {
    ll tm = clock();
    cin.tie(0)->sync_with_stdio(0);
    ll t = 1;
    // cin >> t;
    for(ll tt = 1; tt <= t; tt ++) {
        _(tt);
    }
    cerr << "\n\033[1;31mTime: \033[1;30m" \
         << (double)(clock()-tm)/1000000 << "\033[1;32m seconds\n";
}

• 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