Submission #1359763

#	Time	Username	Problem	Language	Result	Execution time	Memory
1359763		Ludissey	Gingerbread (BOI25_gcd)	C++20	100 / 100	120 ms	8260 KiB

Main

#include <bits/stdc++.h>
#define int long long
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
 
using namespace std;


signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    int n; cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    sort(all(a));
    int mn=1e9;
    for (int i = 0; i < n-1; i++)
    {
        int _i=i+1;
        for (int k = 0; k <= mn; k++)
        {
            for (int j = 0; j <= k; j++)
            {
                if(__gcd(a[i]+j,a[_i]+(k-j))==1) {
                    mn=min(k,mn); break; 
                } 
            }
        }
    }
    cout << mn << "\n";
    return 0;
}   

• Subtask 1: 0 / 0
• Subtask 2: 17 / 17
• Subtask 3: 34 / 34
• Subtask 4: 11 / 11
• Subtask 5: 38 / 38