Submission #1250164

#	Time	Username	Problem	Language	Result	Execution time	Memory
1250164		tranvinhhuy2010	Souvenirs (IOI25_souvenirs)	C++20	Compilation error	0 ms	0 KiB

souvenirs

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

using namespace std;

typedef long long ll;

int n, cnt[105];
ll p[105];

ll adu_calculate(ll s, int k) {
    s += k*(k-1)/2;
    return s/k;
}

void adu_build(ll money) {
    auto [a, remain] = transaction(money);
    ll sum = money - remain;

    for (int i : a)
        cnt[i]++;

    while (a.size()>1 && p[a.back()]>0) {
        sum -= p[a.back()];
        a.pop_back();
    }
    k = a.size();

    if (k>1) adu_build(adu_calculate(sum, k) - 1);

    p[a[0]] = sum;
    if (a[0]+1<n && p[a[0]+1]==0) adu_build(p[a[0]] - 1);
}

void adu_complete() {
    for (int i=1; i<n; i++) {
        while (cnt[i]<i) {
            transaction(p[i]);
            cnt[i]++;
        }
    }
}

void buy_souvenirs(int N, ll P0) {
    n = N;
    adu_build(P0-1);
    adu_complete();
}

Compilation message (stderr)

souvenirs.cpp: In function 'void adu_build(ll)':
souvenirs.cpp:27:5: error: 'k' was not declared in this scope
   27 |     k = a.size();
      |     ^