Submission #1263231

#	Time	Username	Problem	Language	Result	Execution time	Memory
1263231		blueviolet	Cave (IOI13_cave)	C++20	Compilation error	0 ms	0 KiB

cave

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

int tryCombination(vector<int> S);  
void answer(vector<int> S, vector<int> D);

set<int> st;

void exploreCave(int N) {
    vector<int> s(N, 0), d(N, 0);

    for (int i = 0; i < N; i++) st.insert(i);

    while (true) {
        int firstClosed = tryCombination(s);
        if (firstClosed == -1) break;

        for (auto it = st.begin(); it != st.end();) {
            int pos = *it;
            s[pos] ^= 1;
            int pp = tryCombination(s);
            if (pp == -1) break;

            if (pp < firstClosed) {
                s[pos] ^= 1;
                d[pos] = pp;
                it = st.erase(it);
            } else if (pp > firstClosed) {
                d[pos] = firstClosed;
                it = st.erase(it);
                break;
            } else {
                s[pos] ^= 1;
                ++it;
            }
        }
    }
    answer(s, d);
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccnHq4dh.o: in function `exploreCave(int)':
cave.cpp:(.text+0x21a): undefined reference to `tryCombination(std::vector<int, std::allocator<int> >)'
/usr/bin/ld: cave.cpp:(.text+0x2ff): undefined reference to `tryCombination(std::vector<int, std::allocator<int> >)'
/usr/bin/ld: cave.cpp:(.text+0x5cf): undefined reference to `answer(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: /tmp/cc2UgkPd.o: in function `main':
grader.c:(.text.startup+0x10): undefined reference to `exploreCave'
collect2: error: ld returned 1 exit status