Submission #1109608

#	Time	Username	Problem	Language	Result	Execution time	Memory
1109608		0pt1mus23	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	0 / 100	59 ms	19852 KiB

brunhilda

#include <bits/stdc++.h>
using namespace std;
#define int long long int
#define ins insert      
#define pb push_back
#define endl '\n'
#define putr(x) cout<<x<<endl;return; 
#define all(x) x.begin(),x.end()
int nxt(){ int x;cin>>x; return x; }
const int mod = 1e9 +7, sze = 1e5 +10, inf = INT_MAX, LG = 20;
int dp[sze];
vector<pair<int,int>> event[sze];
void fast(){
    for(int i=1;i<sze;i++){
        dp[i]=inf;
    }
    int n,q;
    cin>>n>>q;
    multiset<int> ans; 
    int mx = 0;
    for(int i=1;i<=n;i++){
        int p;cin>>p;
        event[p].pb({p,p});
        mx=max(mx,p);
    }
    for(int i =1;i<sze;i++){
        for(auto v:event[i]){
            if(ans.find(dp[v.first]) !=ans.end() ){
                ans.erase(ans.find(dp[v.first]));
            }
        }
        if( ans.empty() ){
            if(i < mx){
                dp[i]=1;
            }
        }
        else{
            dp[i]= (*ans.begin())+1;
        }
        if(dp[i]<inf){
            for(auto v:event[i]){
                ans.ins(dp[i]);
                if(i + v.second < sze){
                    event[i + v.second].pb({i,v.second});
                }
            }
        }
    }
 
 
    while(q--){
        int v;
        cin>>v;
        if(dp[v]>=inf){
            cout<<"oo"<<endl;
        }
        else{
            cout<<dp[v]<<endl;
        }
    }
}
 
signed main(){
    // ios::sync_with_stdio(0);
    // cin.tie(0);
    // cout.tie(0);
 
    int tt = 1; 
    // cin>>tt;
 
    while(tt--){
        fast();
    }
 
    return 0;
}

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