Submission #875773

#	Time	Username	Problem	Language	Result	Execution time	Memory
875773		raul2008487	Detecting Molecules (IOI16_molecules)	C++17	19 / 100	1 ms	392 KiB

molecules

#include<bits/stdc++.h>
#include "molecules.h"
#define ll int
#define all(v) v.begin(), v.end()
#define pb push_back
#define fi first
#define se second
#define vl vector<ll>
using namespace std;
bool check(ll cur, ll low, ll high){
    return (cur <= high && cur >= low);
}
vector<int> find_subset(int l, int u, vector<int> w) {
    vector<int> ans;
    vector<pair<int,int>> p;
    ll i, j, n = w.size(), left = 0, right = 1;
    long long sum = w[0];
    for(i=0;i<n;i++){
        p.pb({w[i], i});
    }
    sort(all(p));
    bool flag = 0;
    while(left <= right){
        if(check(sum, l, u)){
            break;
        }
        else if(sum > u){
            if(left == (n-1)){
                flag = 1;
                break;
            }
            sum -= p[left].fi;
            left++;
        }
        else if(sum < l){
            if(right == n){
                flag = 1;
                break;
            }
            sum += p[right].fi;
            right++;
        }
    }
    if(flag){
        return ans;
    }
    else{
        for(i=left;i<right;i++){
            ans.pb(p[i].se);
        }
        return ans;
    }
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:16:11: warning: unused variable 'j' [-Wunused-variable]
   16 |     ll i, j, n = w.size(), left = 0, right = 1;
      |           ^

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