Submission #1132833

#	Time	Username	Problem	Language	Result	Execution time	Memory
1132833		SpyrosAliv	Beech Tree (IOI23_beechtree)	C++20	Compilation error	0 ms	0 KiB

beechtree

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

int n, m;
vector<vector<int>> tree;
vector<int> c;

vector<int> solve_line() {
    vector<int> ans(n, false);
    ans[n-1] = true;
    for (int i = n-2; i >= 0; i--) {
        if (c[i] != c[n-1]) break;
        ans[i] = true;
    }
    return ans;
}

vector<int> beachtree(int N, int M, vector<int> P, vector<int> C) {
    n = N;
    m = M;
    c = C;
    tree.clear();
    tree.resize(n);
    bool line = true;
    for (int i = 1; i < n; i++) {
        tree[P[i]].push_back(i);
        if (P[i] != -1) line = false;
    }
    if (line) return solve_line();
    vector<int> ans(n, 0);
    return ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccm392H2.o: in function `main':
grader.cpp:(.text.startup+0x25d): undefined reference to `beechtree(int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status