Submission #1364885

#	Time	Username	Problem	Language	Result	Execution time	Memory
1364885		ZeroCool	Souvenirs (IOI25_souvenirs)	C++20	Compilation error	0 ms	0 KiB

souvenirs

#include "souvenirs.h"
#include <utility>
#include <vector>
#include <bits/stdc++.h>

#define ll long long

const int N = 105;

using namespace std;

ll ans[N];

int cnt[N];

void reduce(vector<int> &v, ll& sum){
    vector<int> g;
    for(auto u: v){
        if(ans[u] != -1)sum -= ans[u];
        else g.push_back(u);
    }
    v = g;
}

void kur(ll x){
    pair<vector<int>, ll> res = transaction(x);
    vector<int> v = res.first;
    for(auto u: v)cnt[u]++;
    ll sum = x - res.second;
    int x = v[0];
    reduce(v, sum);
    if(v.size() == 0 || v[0] != x)return;
    while(v.size() > 1){
        kur(sum / (ll)v.size());
        reduce(v, sum);
    }
    ans[v[0]] = sum;
}

void buy_souvenirs(int n, long long P0) {
    memset(ans, -1, sizeof ans);
    ans[0] = P0;
    while(1){
        bool b = 1;
        for(int i = 1;i < n;i++){
            if(ans[i] == -1){
                kur(ans[i - 1] - 1);
                b = 0;
                break;
            }
        }
        if(b)break;
    }
    for(int i = 1;i < n;i++){
        for(int j = 0;j < i - cnt[i];j++)transaction(ans[i]);
    }
}

Compilation message (stderr)

souvenirs.cpp: In function 'void kur(long long int)':
souvenirs.cpp:30:9: error: declaration of 'int x' shadows a parameter
   30 |     int x = v[0];
      |         ^
souvenirs.cpp:25:13: note: 'long long int x' previously declared here
   25 | void kur(ll x){
      |             ^