Submission #545076

#	Time	Username	Problem	Language	Result	Execution time	Memory
545076		LunaMeme	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

//#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> ii;
typedef vector<pair<int, int>> vii;
typedef vector<int> vi;
typedef long long ll;
#define PB push_back
#define MP make_pair
#define FOR(i, x, y) for (int i = x; i < y ; i ++)

struct weight{
    int val, i;
    weight(int val, int i) : val(val), i(i) {}
    bool operator<(const weight& rhs){
        return val < rhs.val;
    }
};
struct CompareWeight{
    bool operator()(const weight& lhs, const weight& rhs){
        return lhs.val < rhs.val;
    }
};
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<weight> v;
    FOR(i, 0, (int)w.size()){
        v.PB(weight(w[i], i));
    }
    sort(v.begin(), v.end());
    vi sol;
    ll sum = 0;
    priority_queue<weight, vector<weight>, CompareWeight> p;
    if (v[0].val > u) 
        return sol;
    
    FOR(i, 0, (int)w.size()){
        
        if (sum + v[i].val < l){
            sum += v[i].val;
            p.push(v[i]);
        }
        else if (sum +v[i].val <= u){
            p.push(v[i]);
            break;
        }
        else {
            weight mn = p.top();
            p.pop();
            sum +=  v[i].val - mn.val;
            if (sum >= l){
                break;
            }
        }
        if (i == (int)w.size() - 1){
            return std::vector<int>(0);
        }
    }
    while(!p.empty()){
        weight a = p.top(); p.pop();
        sol.PB(a.i);
    }
    return sol;
}

int main() {
    int n, l, u;
    assert(3 == scanf("%d %d %d", &n, &l, &u));
    std::vector<int> w(n);
    for (int i = 0; i < n; i++)
        assert(1 == scanf("%d", &w[i]));
    std::vector<int> result = find_subset(l, u, w);
    
    
    printf("%d\n", (int)result.size());
    for (int i = 0; i < (int)result.size(); i++)
        printf("%d%c", result[i], " \n"[i == (int)result.size() - 1]);
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccH0G33y.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccSaUOFw.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status