Submission #1312085

#	Time	Username	Problem	Language	Result	Execution time	Memory
1312085		pedreitorzelda	Souvenirs (IOI25_souvenirs)	C++20	Compilation error	0 ms	0 KiB

souvenirs

#include <bits/stdc++.h>
using namespace std;
#define int long long
/*
vector<int>a;
pair<vector<int>,int>transaction(int num){
    vector<int>ans;
    for(int i=0;i<a.size();i++){
        if(num>=a[i]){
            ans.push_back(i);
            num-=a[i];
        }
    }return {ans,num};
}*/
pair<vector<int>,int>transaction(int cost);
void to_buy(int ind,int cost,vector<int>&vals,vector<int>&cant){
    pair<vector<int>,int>ans = transaction(cost);
    for(auto it : ans.first)cant[it]++;
    if(ans.first.size()==1){
        vals[ind]=cost-ans.second;
    }else{
        reverse(ans.first.begin(),ans.first.end());
        int nxt = 0;
        for(auto it : ans.first){
            if(vals[it]==-1)to_buy(it,(cost+ans.first.size()-1)/ans.first.size(),vals,cant);
            nxt+=vals[it];
        }vals[ind]=cost-nxt;
    }return;
}

void buy_souvenirs(int N, int P0){
    vector<int>vals(N,-1);
    vector<int>cant(N,0);
    vals[0]=P0;
    for(int i=1;i<N;i++){
        if(vals[i]==-1){
            pair<vector<int>,int>ans = transaction(vals[i-1]-1);
            for(auto it : ans.first)cant[it]++;
            if(ans.first.size()==1){
                vals[i] = vals[i-1]-1-ans.second;
            }else{reverse(ans.first.begin(),ans.first.end());
                for(auto it : ans.first){
                    if(vals[it]==-1)to_buy(it,(vals[i-1]-1+ans.first.size()-1)/ans.first.size(),vals,cant);
                }
            }
        }
    }
    for(int i=0;i<N;i++){
        if(cant[i]>i)cout << "BBBBAAAAAAAAD\n";
        else{
            while(cant[i]<i){
                transaction(vals[i]);
                cant[i]++;
            }
        } 
    }return;
}
/*
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t;
    cin >> t;
    const int MAXI = 100000;
    while(t--){
        int n = rand()%100;
        a.resize(n);
        for(int i=0;i<n;i++){
            a[i] = rand()%MAXI;
        }
        sort(a.begin(),a.end());
        auto it = unique(a.begin(),a.end());
        int x = 0;
        while(it!=a.end()){
            (*it) = MAXI+x;
            x++;
            it++;
        }
        sort(a.begin(),a.end());
        buy_souvenirs(n,a[0]);

        a.clear();
    }
    return 0;
}*/

Compilation message (stderr)

/usr/bin/ld: /tmp/ccN0hY0h.o: in function `main':
stub.cpp:(.text.startup+0x99): undefined reference to `buy_souvenirs(int, long long)'
collect2: error: ld returned 1 exit status