Submission #489038

#	Time	Username	Problem	Language	Result	Execution time	Memory
489038		1ne	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
std::vector<int> find_subset(int l, int u, std::vector<int> arr) {
    int n = arr.size();    
    vector<int>dp(u+1,0);
    vector<int>par(u+1,-1);
    prev.insert(0);
    int val = -1;
    for (int i = 0 ;i<n;++i){
    	for (int x = 0;x<=u;++x){
    		if (x+arr[i]>u)break;
    		if (!dp[x])continue;
    		if (par[x+arr[i]]!=-1)continue;
    		if (par[x]==i)continue;
    		dp[x+arr[i]]=true;
    		par[x+arr[i]]=i;
    		if (x+arr[i]>=l&&x+arr[i]<=u){
    			val = x+arr[i];
    			break;
    		}
    	}
    	if (val!=-1)break;	
    }
    vector<int>ans;
    while(val>0){
    	ans.push_back(par[val]);
    	val-=arr[par[val]];
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:10: error: overloaded function with no contextual type information
    8 |     prev.insert(0);
      |          ^~~~~~