Submission #1125872

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125872		Agageldi	Brunhilda’s Birthday (BOI13_brunhilda)	C++20	37.78 / 100	1096 ms	1052 KiB

brunhilda

/*
ID: agageld1
LANG: C++17
TASK:
*/
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define N 400005
#define ff first
#define ss second
#define pb push_back
#define sz(s) (int)s.size()
#define rep(c, a, b) for(c = a; c <= b; c++)

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

ll n, t = 1, m, q;
string s, g, h;
vector <int> a;

int main () {
	//freopen("txt.in","r",stdin);
	//freopen("txt.out","w",stdout);
	ios::sync_with_stdio(0);cin.tie(0);
	cin >> m >> q;
	for(int i= 1;i<=m;i++) {
		ll x;
		cin >> x;
		t = (t*x)/(__gcd(t,x));
		a.pb(x);
	}
	sort(a.begin(),a.end());
	for(int j = 1;j<=q;j++) {
		int x, cnt = 0;
		cin >> x;
		if(x%t == 0) {
			cout << "oo\n";
			continue;
		}
		while(x != 0) {
			int mx = INT_MAX;
			for(auto i : a) {
				if(mx > (x / i) * i) mx = (x / i) * i;
			}
			x = mx;
			cnt++;
		}
		if(!x)cout << cnt << '\n';
	}
}

• Subtask 1: 17.7778 / 20
• Subtask 2: 20 / 20
• Subtask 3: 0 / 60