Submission #1267581

#	Time	Username	Problem	Language	Result	Execution time	Memory
1267581		yuuCG	Sirni (COCI17_sirni)	C++20	42 / 140	1014 ms	851968 KiB

sirni

#include <bits/stdc++.h>
using namespace std;
#define all(ac) ac.begin(),ac.end()
#define task "tet"
#define int long long
#define fi first
#define se second
#define db long double

const int N = 1e5+1;
int n, p[N];
namespace sub1 {
    struct DSU {
        int n;
        vector <int> lab;
        DSU(int n): n(n), lab(n+1, -1) {}
        int get(int u) {return lab[u] < 0 ? u : lab[u] = get(lab[u]);}
        bool join(int a, int b) {
            a = get(a), b = get(b);
            if(a != b) {
                if(lab[a] < lab[b]) swap(a,b);
                lab[a] += lab[b], lab[b] = a;
                return 1;
            }
            return 0;
        }
    };
    struct node {
        int x, y, z;
        bool operator <(const node o) const {
            return x < o.x;
        }
    };
    void solve() {
        int ans = 0;
        vector <node> vt;
        for(int i=1;i<=n;i++) {
            for(int j=1;j<i;j++) vt.emplace_back(node{min(p[i]%p[j], p[j] % p[i]),i,j});
        }
        sort(all(vt));
        int cnt = 0;
        DSU dsu(n);
        for(auto e:vt) {
            if(dsu.join(e.y, e.z)) ans += e.x, cnt++;
            if(cnt == n-1) break;
        }
        cout << ans << '\n';
        return;
    }
};
int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cin >> n;
    for(int i=1;i<=n;i++) cin >> p[i];
    sub1::solve();
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14
• Subtask 6: 0 / 14
• Subtask 7: 0 / 14
• Subtask 8: 0 / 14
• Subtask 9: 0 / 14
• Subtask 10: 0 / 14