제출 #1004193

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1004193		Nelt	Sirni (COCI17_sirni)	C++17	42 / 140	5079 ms	2780 KiB

sirni

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
#define endl "\n"
 
using namespace std;
using namespace __gnu_pbds;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T> using ordered_set = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;

void solve()
{
    ll n;
    cin >> n;
    ll p[n];
    for (ll &i : p) cin >> i;
    ll ans = 0;
    ll mn[n];
    for (ll i = 0; i < n; i++) mn[i] = 1e9;
    mn[0] = 0;
    bool used[n];
    memset(used, 0, sizeof(used));
    for (ll i = 0; i < n; i++)
    {
        ll cur = 1e9;
        ll v = 0;
        for (ll j = 0; j < n; j++) if (!used[j] and mn[j] < cur) cur = mn[j], v = j;
        ans += cur;
        used[v] = 1;
        for (ll j = 0; j < n; j++) mn[j] = min(mn[j], min(p[v] % p[j], p[j] % p[v]));
    }
    cout << ans << endl;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll t = 1;
    // precomp();
    // cin >> t;
    for (ll cs = 1; cs <= t; cs++)
        solve();
    // cerr << "\nTime elapsed: " << clock() * 1000.0 / CLOCKS_PER_SEC << " ms\n";
}

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