Submission #1319332

#	Time	Username	Problem	Language	Result	Execution time	Memory
1319332		Trisanu_Das	Souvenirs (IOI25_souvenirs)	C++20	Compilation error	0 ms	0 KiB

souvenirs

#include "souvenirs.h"
#include <bits/stdc++.h>
using namespace std;

bool is_full_suffix(const vector<int>& L, int N) {
    if (L.empty()) return false;
    for (int i = 0; i < (int)L.size(); i++) {
        if (L[i] != L[0] + i) return false;
    }
    return L.back() == N - 1;
}


void buy_souvenirs(int N, long long P0) {
    vector<long long> suffix_sum(N, -1);
    vector<bool> known(N, false);

    int known_cnt = 0;

    // 1) Literal scanning over M
    for (long long M = 1; M < P0 && known_cnt < N - 1; M++) {
        long long R;
        vector<int> L = transaction(M, R);

        if (L.empty()) continue;
        if (!is_full_suffix(L, N)) continue;

        int k = L[0];
        if (k == 0) continue;

        if (!known[k]) {
            suffix_sum[k] = M - R;
            known[k] = true;
            known_cnt++;
        }
    }

    // 2) Recover prices
    vector<long long> P(N);
    P[0] = P0;

    for (int i = N - 1; i >= 1; i--) {
        if (i == N - 1) {
            P[i] = suffix_sum[i];
        } else {
            P[i] = suffix_sum[i] - suffix_sum[i + 1];
        }
    }

    // 3) Buy souvenirs
    for (int i = 1; i < N; i++) {
        for (int cnt = 0; cnt < i; cnt++) {
            long long R;
            transaction(P[i], R);
        }
    }
}

Compilation message (stderr)

souvenirs.cpp: In function 'void buy_souvenirs(int, long long int)':
souvenirs.cpp:23:36: error: too many arguments to function 'std::pair<std::vector<int>, long long int> transaction(long long int)'
   23 |         vector<int> L = transaction(M, R);
      |                         ~~~~~~~~~~~^~~~~~
In file included from souvenirs.cpp:1:
souvenirs.h:6:40: note: declared here
    6 | std::pair<std::vector<int>, long long> transaction(long long M);
      |                                        ^~~~~~~~~~~
souvenirs.cpp:23:36: error: conversion from 'std::pair<std::vector<int>, long long int>' to non-scalar type 'std::vector<int>' requested
   23 |         vector<int> L = transaction(M, R);
      |                         ~~~~~~~~~~~^~~~~~
souvenirs.cpp:54:24: error: too many arguments to function 'std::pair<std::vector<int>, long long int> transaction(long long int)'
   54 |             transaction(P[i], R);
      |             ~~~~~~~~~~~^~~~~~~~~
souvenirs.h:6:40: note: declared here
    6 | std::pair<std::vector<int>, long long> transaction(long long M);
      |                                        ^~~~~~~~~~~