Karuselli

#include <iostream>
#include <vector>
#include <map>
using namespace std;
long n, m, o, p, k, m1[101010], m2[101010];
map<long, int> ma1, ma2;
int main() {
	cin >> n >> k;
	//for (int i = 1; i <= n; i++) {
	if (n == 1) {
		for (int a = 1; a <= k; a++) {
			cin >> o;
			p = max(p, o);
		}
	} else {
		for (int a = 1; a <= k; a++) {
			cin >> o;
			ma1.insert({o, a});
		}
		for (int a = 1; a <= k; a++) {
			cin >> o;
			ma2.insert({o, a});
		}	
			//v[i].push_back({a, i});
	
		for (auto a = ma1.end(); a != ma1.begin(); --a) {
			auto it2 = ma2.end();
			--it2;
			if (it2->first + a->first < p) break;
			for (auto b = ma2.end(); b != ma2.begin(); b--) {
				if (a->second == b->second) continue;
				p = max(a->first + b->first, p);
			}
		}
	}
	cout << p << endl;

}//:D

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: WRONG ANSWER

Test 13

Group: 3

Verdict: WRONG ANSWER

Test 14

Group: 3

Verdict: WRONG ANSWER

Test 15

Group: 3

Verdict: WRONG ANSWER