Submission #788079

#	Time	Username	Problem	Language	Result	Execution time	Memory
788079		YassirSalama	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define OVL(v,s) for(auto x:v) cout<<x<<s;cout<<endl;
const int MAXM=20000;
vector<vector<int>> dp(MAXM);
vector<int> v;
int L,U,N;
void find(int x){
}
#define all(v) v.begin(),v.end()
#define pb push_back
vector<int> find_subset(int l, int u, vector<int> w) {
    vector<pair<int,int>> v;
    int n=w.size();
    vector<int> pref(w.size()+100,0);
    for(int i=0;i<w.size();i++){
        v.pb({w[i],i});
    }
    sort(all(v));
    for(int i=0;i<n;i++) pref[i+1]=pref[i]+v[i].first;
    int i=0;
    int j=0;
    int cnt=0;
    while(i<=j){
        int x=pref[j+1]-pref[i];
        cnt++;
        // if(cnt==100) return vector<int>(0);
        // cout<<i<<" "<<j<<" "<<x<<endl;
        // break;
        if(l<=x&&x<=u){
            vector<int> ans;
            for(int k=i;k<=j;k++){
                ans.push_back(v[k].second);
            }
            return ans;
        }
        if(i==j) break;
        if(j<=n-2) { 
            if(x<l) 
                j++;
        }
        if(x>u) i++;
    }
    return vector<int>(0);
}


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)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int i=0;i<w.size();i++){
      |                 ~^~~~~~~~~
/usr/bin/ld: /tmp/ccTpgWEh.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccmd0zYf.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status