Submission #631264

#	Time	Username	Problem	Language	Result	Execution time	Memory
631264		TranGiaHuy1508	Brunhilda’s Birthday (BOI13_brunhilda)	C++17	8.10 / 100	29 ms	2892 KiB

brunhilda

/*
	Unknown's C++ Template (v3.2)
*/

#include "bits/stdc++.h"
using namespace std;

#define int long long

using ll = long long;
using ld = long double;
using ii = pair<int, int>;
using vi = vector<int>;
using vii = vector<ii>;
using vvi = vector<vi>;
using vvii = vector<vii>;
template <class T> using maxpq = priority_queue<T>;
template <class T> using minpq = priority_queue<T, vector<T>, greater<T>>;

#define pb push_back
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define mid ((l+r)>>1)
#define fi first
#define se second

#ifdef LOCAL
	#define debug(x) cout << #x << " = " << x << "\n";
#else
	#define debug(x) ;
#endif

template <class A, class B>
ostream& operator << (ostream& out, pair<A, B> x)
{ out << "(" << x.first << ", " << x.second << ")"; return out; }

template <class T>
ostream& operator << (ostream& out, vector<T> x){
	out << "[";
	for (int i=0; i<sz(x); i++) { out << (i ? ", " : "") << x[i]; }
	out << "]"; return out;
}

template <class T>
istream& operator >> (istream& in, vector<T> &x){
	for (auto &i: x) in >> i;
	return in;
}

const ld PI = acos(-1.0);
const int allmod[3] = {(int)1e9+7, 998244353, (int)1e9+9};
const int mod = allmod[0];
const int maxn = 2e5 + 64;
const ll inf = 1e18;
const ld eps = 1e-6;
const int multitest = 0;

const int maxval = 1e7;

void main_program(){
	int m, q; cin >> m >> q;
	vi v(m); cin >> v; sort(all(v), greater<int>());

	int LCM = 1;
	for (int i = 0; i < m; i++){
		LCM = lcm(LCM, v[i]);
		if (LCM > maxval) break;
	}

	for (int i = 0; i < q; i++){
		int x; cin >> x;
		if (x >= LCM){
			cout << "oo\n";
			continue;
		}

		int res = 0;
		if (x % v[0]) res++;
		x -= x % v[0];

		int j = 0, crr = 2;
		while (x){
			x /= v[j];
			j++;

			res += crr * (x % v[j]);
			crr *= v[j];
			x -= x % v[j];
		}

		cout << res << "\n";
	}
}

void pre_main(){

}

signed main(){
	#ifdef LOCAL
		auto stime = chrono::high_resolution_clock::now();
	#endif
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	#ifndef ONLINE_JUDGE
		if (fopen(".inp", "r")){
			freopen(".inp", "r", stdin);
			freopen(".out", "w", stdout);
		}
	#endif
	int t = 1; if (multitest) cin >> t;
	pre_main();
	while (t--) main_program();
	#ifdef LOCAL
		auto etime = chrono::high_resolution_clock::now();
		auto duration = chrono::duration_cast<chrono::milliseconds>(etime-stime).count();
		cout << "\n[" << duration << "ms]\n";
	#endif
}

Compilation message (stderr)

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:106:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  106 |    freopen(".inp", "r", stdin);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~
brunhilda.cpp:107:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  107 |    freopen(".out", "w", stdout);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 1.1111111111111112 / 20
• Subtask 2: 5.555555555555555 / 20
• Subtask 3: 1.4285714285714286 / 60