제출 #631303

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
631303		mousey	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	48.73 / 100	1043 ms	79556 KiB

brunhilda

#include <bits/stdc++.h>
#define ll long long
#define vll vector<ll>
#define vllp vector<pair<ll, ll> >
#define pdb pair <double, double> 
#define YES cout<<"YES"
#define NO cout<<"NO"
#define endl cout<<"\n"
#define vv vector <vector <ll> >
#define pll pair <ll, ll> 
#define mp make_pair
#define pb push_back
#define f first
#define s second
using namespace std;

const ll mod=1e9+7;
const ll modx=998244353;
const double eps=1e-9;
const ll INF=INT_MAX;
const ll INFINF=LLONG_MAX;
const ll N=1e5, MAXN=1e7;
ll n, q;
ll a[N+5];
ll ans[MAXN+5];
ll product=1;

void input()
{
	cin >> n >> q;
	for(int i = 1; i <= n; i++)
	{
		cin >> a[i];
		product*=a[i];
		if(product>=MAXN) product=MAXN;
	}
}

void solve()
{
	ll cur=n;
	for(int i = 2; i <= MAXN; i++)
	{
		ans[i]=INFINF;
		if(i>=product) continue;
		if(i<a[n])
		{
			ans[i]=1;
			continue;
		}
		for(int j = n; j >= 1 && j >= n-12; j--)
		{
			if(i%a[j]) ans[i]=min(ans[i], ans[i-i%a[j]]+1);
		}
		for(int j = n-13; j >= 1; j--)
		{
			if(i%a[j])
			{
				ans[i]=min(ans[i], ans[i-i%a[j]]+1);
				break;
			}
		}
	}
	while(q--)
	{
		ll x;
		cin >> x;
		if(ans[x]==INFINF) cout << "oo";
		else cout << ans[x];
		endl;
	}
}

int main() 
{
//	auto start_time = chrono::high_resolution_clock::now();
//	freopen("test.txt", "r", stdin);
//	freopen("out.txt", "w", stdout);
	ios_base::sync_with_stdio(NULL); cin.tie(nullptr); cout.tie(nullptr);
    input();
    solve();
//    auto end_time = chrono::high_resolution_clock::now();
//        double duration = chrono::duration_cast<chrono::milliseconds>(end_time - start_time).count();
//        cout << "\n[ " << duration << " ms ]\n"; 
}

컴파일 시 표준 에러 (stderr) 메시지

brunhilda.cpp: In function 'void solve()':
brunhilda.cpp:41:5: warning: unused variable 'cur' [-Wunused-variable]
   41 |  ll cur=n;
      |     ^~~

• Subtask 1: 13.333333333333334 / 20
• Subtask 2: 11.11111111111111 / 20
• Subtask 3: 24.285714285714285 / 60