Submission #1029530

#	Time	Username	Problem	Language	Result	Execution time	Memory
1029530		nisanduu	Detecting Molecules (IOI16_molecules)	C++14	19 / 100	1 ms	432 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<ll> pref;
    int n = w.size();
    for(ll i=0;i<n;i++){
        pref.push_back(w[i]);
    }
    vector<int> ans;
    for(ll i=1;i<w.size();i++){
        pref[i]=pref[i-1]+pref[i];
    }
    for(ll i=0;i<w.size();i++){
        ll target = i != 0 ? pref[i-1] : 0;
        target += l;
        ll ub = (target-l) + u;
        auto ite = lower_bound(pref.begin(),pref.end(),target);
        if(ite==pref.end()) continue;
        ll ind = ite - pref.begin();
        if(pref[ind]>=target&&pref[ind]<=ub){
            for(ll j=i;j<=ind;j++){
                ans.push_back(j);
            }
            return ans;
        }
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:12:17: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(ll i=1;i<w.size();i++){
      |                ~^~~~~~~~~
molecules.cpp:15:17: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(ll i=0;i<w.size();i++){
      |                ~^~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31