Submission #631288

#	Time	Username	Problem	Language	Result	Execution time	Memory
631288		TranGiaHuy1508	Brunhilda’s Birthday (BOI13_brunhilda)	C++17	10.32 / 100	1099 ms	1204 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, mx = 0;
		while (x){
			for (auto j: v){
				if (mx >= j-1) break;
				mx = max(mx, x % j);
			}
			if (mx == 0) break;
			x -= mx; res++;
		}
		if (x) cout << "oo\n";
		else 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:102:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  102 |    freopen(".inp", "r", stdin);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~
brunhilda.cpp:103:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  103 |    freopen(".out", "w", stdout);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3.3333333333333335 / 20
• Subtask 2: 5.555555555555555 / 20
• Subtask 3: 1.4285714285714286 / 60