Submission #411676

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
411676	2021-05-25 17:52:56	Dormi	Weird Numeral System (CCO21_day1problem2)	C++14	25 / 25	1106 ms	4920 KiB

Main

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#include "bits/stdc++.h"
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
template<typename T>
int sz(const T &a){return int(a.size());}
ll k;
unordered_map<ll,ll> memo;
vector<ll> arr;
bool solve(ll a){
    if(memo.count(a))return memo[a]!=LLONG_MAX;
    memo[a]=LLONG_MAX;
    for(auto x:arr){
        if((a-x)%k==0){
            if(a-x==0||solve((a-x)/k)){
                memo[a]=x;
                return true;
            }
        }
    }
    return false;
}
int main(){
    cin.tie(NULL);
    ios_base::sync_with_stdio(false);
    int q,d,m;
    cin>>k>>q>>d>>m;
    arr.resize(d);
    for(int i=0;i<d;i++)cin>>arr[i];
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 17 / 17