Submission #849699

#	Time	Username	Problem	Language	Result	Execution time	Memory
849699		chilengaming	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

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

#define int long long

using namespace std;

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<int> ans;
    vector<pair<int, int>> ww;
    int i = 0;
    for(int &a : w) {
        ww.push_back({a, i});
        i++;
    }
    sort(ww.begin(), ww.end());
    int R = 0, sum = w[0];
    for(int L = 0; L < w.size(); L++) {
        while(sum < l && R < w.size() - 1) {
            R++;
            sum += w[R];
        }
        if(sum >= l && sum <= u) {
            for(int j = L; j <= R; j++) {
                ans.push_back(ww[j].second);
            }
            return ans;
        }
        sum -= w[L];
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<long long int> find_subset(long long int, long long int, std::vector<long long int>)':
molecules.cpp:18:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int L = 0; L < w.size(); L++) {
      |                    ~~^~~~~~~~~~
molecules.cpp:19:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |         while(sum < l && R < w.size() - 1) {
      |                          ~~^~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccqmIdpT.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status