Submission #923091

#	Time	Username	Problem	Language	Result	Execution time	Memory
923091		8pete8	Brunhilda’s Birthday (BOI13_brunhilda)	C++17	40 / 100	1069 ms	2908 KiB

brunhilda

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<cassert>
#include<limits.h>
#include<cmath>
#include<set>
#include<numeric> //gcd(a,b)
#include<algorithm>
#include<bitset> 
#include<stack>
using namespace std;
#define ll long long
#define f first
#define endl "\n"
#define s second
#define pii pair<int,int>
#define pppiiii pair<pii,pii>
#define ppii pair<int,pii>
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define pb push_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#define int long long
const int mod=998244353,mxn=1e6+5,lg=30,inf=1e18,minf=-1e18,Mxn=100000,root=700;
void setIO(string name){		
	ios_base::sync_with_stdio(0); cin.tie(0);		
	freopen((name+".in").c_str(),"r",stdin);		
	freopen((name+".out").c_str(),"w",stdout);	
}	
int n,q;
vector<int>v;
void solve(){
	int ans=0;
	int cur;cin>>cur;
	vector<int>op(n);
	while(cur){
		int lc=cur;
		ans++;
		for(int i=0;i<n;i++)op[i]=(cur/v[i])*v[i];
		for(auto i:op)cur=min(cur,i);
		if(lc==cur){
			cout<<"oo\n";
			return;
		}
	}
	cout<<ans<<'\n';
}
int32_t main(){
	fastio
	cin>>n>>q;//brute force
	v.resize(n);
	for(int i=0;i<n;i++)cin>>v[i];
	while(q--)solve();
}

Compilation message (stderr)

brunhilda.cpp: In function 'void setIO(std::string)':
brunhilda.cpp:36:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
brunhilda.cpp:37:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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