Submission #690924

#	Time	Username	Problem	Language	Result	Execution time	Memory
690924		vladilius	Table Tennis (info1cup20_tabletennis)	C++17	35 / 100	3082 ms	4256 KiB

tabletennis

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
 
bool check(vector<ll> a){
    int n = a.size();
    ll k = a[0] + a.back();
    for (int i = 1; i < n - i - 1; i++){
        if (a[i] + a[n - i - 1] != k){
            return false;
        }
    }
    return true;
}
 
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
 
	int n, k; cin>>n>>k;
    vector<ll> a(n + k);
    for (int i = 0; i < n + k; i++){
        cin>>a[i];
    }
    
    if (n <= 100 && k <= 100){
        for (int i = 0; i < k; i++){
            vector<ll> b;
            for (int j = 0; j < n; j++){
                b.push_back(a[i + j]);
            }
            if (check(b)){
                for (int j: b){
                    cout<<j<<" ";
                }
                return 0;
            }
        }
    }
    else {
        for (int i = 0; i < n + k; i++){
            vector<ll> b = a;
            b.erase(b.begin() + i);
            if (check(b)){
                for (int j = 0; j < n; j++){
                    cout<<b[j]<<" ";
                }
                return 0;
            }
        }
    }
}

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