Submission #1109636

#	Time	Username	Problem	Language	Result	Execution time	Memory
1109636		0pt1mus23	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	20 / 100	59 ms	14868 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];
void fast(){
    int n,q;
    cin>>n>>q;
    int mx = 0;

    set<pair<int,int>> var;
    for(int i=1;i<=n;i++){
        int p;cin>>p;
        mx=max(mx,p);
        var.ins({p,p});
    }
    for(int i=1;i<sze;i++){
        dp[i]=inf;
        while(!var.empty()){
            auto it = *var.begin();
            if( it.first + it.second<=i){
                // cout<<i<<" "<<it.first<<" "<<it.second<<endl;
                if(it.first + it.second < sze){
                    var.ins({it.first + it.second,it.second});
                }
                var.erase(var.begin());
            }
            else{
                break;
            }
        }
        if(i<mx){
            dp[i]=1;
        }
        else{
            // cout<<i<<" "<<var.size()<<endl;
            if(!var.empty()){

                auto it = *var.begin();
                // cout<<i<<" "<<it.first<<endl;
                dp[i]= dp[it.first] +1;
            }
        }
    }

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