Submission #1262274

#	Time	Username	Problem	Language	Result	Execution time	Memory
1262274		alexiah	Detecting Molecules (IOI16_molecules)	C++20	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include <vector>
using namespace std;
typedef vector <int> vi;

vi act , ans;
int sum = 0;
bool si = false;

void search(int x, vi& w, int l, int u) {
    if (si) return;
    if(sum > u) return;
    if (l <= sum && sum <= u) {
        ans = act;
        si = true;
    }
    if (x == w.size()) return;
    search(x+1, w, l, u);
    act.push_back(x);
    sum += w[x];
    search(x+1, w, l, u);
    act.pop_back();
    sum -= w[x];
}

vi find_subset(int l, int u, vi& w) {
    search(0, w, l, u);
    return ans;
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
/usr/bin/ld: /tmp/ccVFh3wL.o: in function `main':
grader.cpp:(.text.startup+0x173): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status