Submission #1251377

#	Time	Username	Problem	Language	Result	Execution time	Memory
1251377		InternetPerson10	Souvenirs (IOI25_souvenirs)	C++20	Compilation error	0 ms	0 KiB

souvenirs

#include "souvenirs.h"
#include <utility>
#include <vector>

using namespace std;
typedef long long ll;

ll counts[2001];
ll costs[2001];

void try_buy(int k, int n, ll p) {
}

pair<vector<int>, ll> make_transaction(ll P) {
    vector<int> v;
    ll x;
    tie(v, x) = transaction(P);
    for(int g : v) counts[g]++;
    return {v, x};
}

void buy_souvenirs(int N, long long P0) {
    for(int i = 0; i < N; i++) {
        costs[i] = -1;
    }
    costs[0] = P0;
    // pair<vector<int>, ll> res = transaction(3);
    for(int i = 1; i < N; i++) {
        auto p = make_transaction(costs[i-1]-1);
        if(p.first.size() == 1 && p.second == 0) {
            costs[i] = costs[i-1] - 1;
        }
        else {
            costs[i] = costs[i-1] - 2;
        }
        while(counts[i] != i) make_transaction(costs[i]);
    }
}

Compilation message (stderr)

souvenirs.cpp: In function 'std::pair<std::vector<int>, long long int> make_transaction(ll)':
souvenirs.cpp:17:5: error: 'tie' was not declared in this scope
   17 |     tie(v, x) = transaction(P);
      |     ^~~
souvenirs.cpp:2:1: note: 'std::tie' is defined in header '<tuple>'; did you forget to '#include <tuple>'?
    1 | #include "souvenirs.h"
  +++ |+#include <tuple>
    2 | #include <utility>