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- #include <iostream>
- #include <vector>
- #include <algorithm>
- using namespace std;
- const int INF = 2e9;
- int main() {
- ios_base::sync_with_stdio(false);
- int n;
- cin >> n;
- vector<int> podaroci(n);
- for(int i = 0; i < n; i++) {
- cin >> podaroci[i];
- }
- int m;
- cin >> m;
- vector<int> kutii(m);
- for(int i = 0; i < m; i++) {
- cin >> kutii[i];
- }
- sort(podaroci.begin(), podaroci.end());
- sort(kutii.begin(), kutii.end());
- int najmala_razlika = INF;
- int podarok = -1;
- for(int i = 0; i < n; i++) {
- int idx = lower_bound(kutii.begin(), kutii.end(), podaroci[i]) - kutii.begin();
- if(idx >= 0 and idx < m) {
- int razlika = kutii[idx] - podaroci[i];
- if(najmala_razlika >= razlika) {
- najmala_razlika = razlika;
- if(podaroci[i] > podarok) {
- podarok = podaroci[i];
- }
- }
- }
- }
- cout << podarok << endl;
- return 0;
- }
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