Submission #1208980

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208980		jasonic	Koala Game (APIO17_koala)	C++20	Compilation error	0 ms	0 KiB

koala

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

using namespace std;

const int MXN = 100;
int toSend[MXN];
int response[MXN];

int minValue(int n, int w) {

    toSend[0] = 1;

    playRound(toSend, response);

    for(int i = 1; i < MXN; i++) {
        if(response[i] == 0) return i;
    }
    
    return 0;
}

int maxValue(int n, int w) {
    vector<int> candidates;
    
    while(candidates.size() != 1) {
        int cnt = w / candidates.size();
        fill(toSend, toSend + MXN, 0);
        for(auto i : candidates) toSend[i] = cnt;
        playRound(toSend, response);
        candidates.swap(vector<int>());
        for(int i = 0; i < MXN; i++) if(response[i] > cnt) candidates.push_back(i);
    }

    return candidates[0];
}

int greaterValue(int n, int w) {
    // TODO: Implement Subtask 3 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    return 0;
}

void allValues(int n, int w, int *p) {
    if (w == 2*n) {
        // TODO: Implement Subtask 4 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    } else {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.
    }
}

Compilation message (stderr)

koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:31:25: error: cannot bind non-const lvalue reference of type 'std::vector<int>&' to an rvalue of type 'std::vector<int>'
   31 |         candidates.swap(vector<int>());
      |                         ^~~~~~~~~~~~~
In file included from /usr/include/c++/11/vector:67,
                 from /usr/include/c++/11/functional:62,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
                 from koala.cpp:2:
/usr/include/c++/11/bits/stl_vector.h:1480:20: note:   initializing argument 1 of 'void std::vector<_Tp, _Alloc>::swap(std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]'
 1480 |       swap(vector& __x) _GLIBCXX_NOEXCEPT
      |            ~~~~~~~~^~~