Submission #717359

#	Time	Username	Problem	Language	Result	Execution time	Memory
717359		vjudge1	Table Tennis (info1cup20_tabletennis)	C++17	38 / 100	3089 ms	969948 KiB

tabletennis

#include <bits/stdc++.h>
#define endl '\n'
#define FAST ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define int ll
typedef long long ll;
using namespace std;
const int N = 15e4 + 10, mod = 1e9 + 7;
int n, k, a[N];
map<int, vector<pair<int, int> > > vis;
void solve() {
    return;
}
signed main() {
    FAST;
    cin >> n >> k;
    int num = 0;
    for(int i = 0; i < n + k; i++) cin >> a[i];
    if(k == 1) {
        solve();
        return 0;
    }
    for(int i = 0; i < n + k - 1; i++) {
        for(int j = i + 1; j < n + k; j++) {
            vis[a[i] + a[j]].push_back({a[i], a[j]});
            if(vis[a[i] + a[j]].size() >= n / 2) num = a[i] + a[j];
        }
    }
    vector<int> v;
    int i = 0;
    while(v.size() < n && i < vis[num].size()) {
        v.push_back(vis[num][i].first);
        v.push_back(vis[num][i].second);
        i++;
    }
    sort(v.begin(), v.end());
    for(auto it : v) {
        cout << it << ' ';
    }
}

Compilation message (stderr)

tabletennis.cpp: In function 'int main()':
tabletennis.cpp:25:40: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   25 |             if(vis[a[i] + a[j]].size() >= n / 2) num = a[i] + a[j];
      |                ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
tabletennis.cpp:30:20: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   30 |     while(v.size() < n && i < vis[num].size()) {
      |           ~~~~~~~~~^~~
tabletennis.cpp:30:29: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     while(v.size() < n && i < vis[num].size()) {
      |                           ~~^~~~~~~~~~~~~~~~~

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