Submission #693014

#	Time	Username	Problem	Language	Result	Execution time	Memory
693014		VahanAbraham	Table Tennis (info1cup20_tabletennis)	C++14	20 / 100	100 ms	9036 KiB

tabletennis

#include <iostream>
#include <string>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <sstream>
#include <map>
#include <stack>
#include <set>
#include <queue>
#include <unordered_set>
#include <unordered_map>
#include <math.h>
#include <cmath>
#include <vector>
using namespace std;


#define ll long long
#define fr first
#define sc second
#define pb push_back
#define US freopen("hps.in", "r", stdin); freopen("hps.out", "w", stdout);

ll gcd(ll a, ll b)
{
    if (a == 0 || b == 0) {
        return  max(a, b);
    }
    if (a <= b) {
        return gcd(a, b % a);
    }
    else {
        return gcd(a % b, b);
    }
}

ll lcm(ll a, ll b) {
    return (a / gcd(a, b)) * b;
}

int isprime(int p)
{
    if (p <= 1) {
        return 0;
    }
    for (int i = 2; i * i <= p; i++) {
        if (p % i == 0) {
            return 0;
        }
    }
    return 1;
}

const int N = 200005;
pair<ll, ll>  p[N], ps[N];
vector <int> g[N];


ll a[N];




void solve() {
    int n, k;
    cin >> n >> k;
    int h = n + k;
    for (int i = 0;i < h;i++) {
        cin >> a[i];
    }
    sort(a, a + h);
    bool fl = true;
    int z = 0;
    int l = 0, r = 0;
    ll x = 0;
    if (k == 2) {
        for (int j = 0;j < h;j++) {
            for (int i = 0;i < h;i++) {
                if (i != j) {
                    l = 0, r = h - 1;
                    x = -1;
                    bool fl = true;
                    while (l < r) {
                        if (l == i) {
                            l++;
                        }
                        if (r == i) {
                            r--;
                        }
                        if (l == j) {
                            l++;
                        }
                        if (r == j) {
                            r--;
                        }
                        if (x != a[r] + a[l] && x != -1) {
                            fl = false;
                            break;
                        }
                        else {
                            if (x == -1) {
                                x = a[r] + a[l];
                            }
                        }
                        l++;
                        r--;
                    }
                    if (fl == 1) {
                        for (int j = 0;j < h;j++) {
                            if (i != j) {
                                cout << a[j] << " ";
                            }
                        }
                        return;
                    }
                }
            }
        }
    }
    if (k == 1) {
        for (int i = 0;i < h;i++) {
            l = 0, r = h - 1;
            x = -1;
            bool fl = true;
            while (l < r) {
                if (l == i) {
                    l++;
                }
                if (r == i) {
                    r--;
                }
                if (x != a[r] + a[l] && x != -1) {
                    fl = false;
                    break;
                }
                else {
                    if (x == -1) {
                        x = a[r] + a[l];
                    }
                }
                l++;
                r--;
            }
            if (fl == 1) {
                for (int j = 0;j < h;j++) {
                    if (i != j) {
                        cout << a[j] << " ";
                    }
                }
                return;
            }
        }
    }
    
}


int main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    //US
    int tt = 1;
    //cin >> tt;
    while (tt--) {
        solve();
    }
}
/*

              %%           %%         %           %%      %%            %          %%     %%
               %%         %%        %% %%         %%      %%          %% %%        %%%%   %%
                %%       %%        %%   %%        %%      %%         %%   %%       %% %%  %%
                 %%     %%        %%%%%%%%%       %%%%%%%%%%        %%%%%%%%%      %%  %% %%
                  %%   %%        %%       %%      %%      %%       %%       %%     %%   %%%%
                   %% %%        %%         %%     %%      %%      %%         %%    %%    %%%
                     %         %%           %%    %%      %%     %%           %%   %%     %%

*/

Compilation message (stderr)

tabletennis.cpp: In function 'void solve()':
tabletennis.cpp:73:10: warning: unused variable 'fl' [-Wunused-variable]
   73 |     bool fl = true;
      |          ^~
tabletennis.cpp:74:9: warning: unused variable 'z' [-Wunused-variable]
   74 |     int z = 0;
      |         ^

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