Submission #1001400

#	Time	Username	Problem	Language	Result	Execution time	Memory
1001400		Br3ad	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	1 ms	424 KiB

molecules

#include <iostream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <numeric>
#include <cstring>
#include <string>
#include <cmath>
#include <vector>
#include <queue>
#include <stack>
#include <set>
#include <map>

using namespace std;
#define ll long long
#define ull unsigned long long
#define f first
#define s second
#define PF push_front
#define PB push_back
#define MP make_pair
#define max(a, b) ((a > b)? a : b)
#define min(a, b) ((a < b)? a : b)
#define max3(a, b, c) max(max(a, b), c)
#define min3(a, b, c) min(min(a, b), c)

const int N = 2e5 + 5;
const int M = 1e9 + 7; 
const int inf = 0x3f3f3f3f;
const ll int INF = 1e18;

vector<int> find_subset(int l, int u, vector<int> w){
    int n = w.size();
    vector<pair<int, int>> v;
    for(int i = 0; i < n; i++){
        v.PB(MP(w[i], i));
    }

    sort(w.begin(), w.end());

    ll int pre = 0, suf = 0, sz = -1;
    for(int i = 0; i < n; i++){
        pre += v[i].f;
        suf += v[n-i-1].f;
        if(pre <= u && suf >= l){
            sz = i;
            break;
        }
    }
    
    vector<int> ans;
    if(sz == -1) return ans;
    
    pre = suf = 0;
    for(int i = 0; i <= sz; i++){
        pre += v[i].f;
    }

    for(int i = 0; i <= sz; i++){
        if(pre + suf >= l && pre + suf <= u) break;
        pre -= v[sz-i].f;
        suf += v[n-i-1].f;
    }

    for(ll int i = 0, temp = 0; temp < pre; temp += v[i].f, i++) ans.PB(v[i].s);
    for(ll int i = 0, temp = 0; temp < suf; temp += v[n-i-1].f, i++) ans.PB(v[n-i-1].s);

    return ans;
}

// int main(){
    
//     ios::sync_with_stdio(false);
//     cin.tie(NULL);
    
//     // ifstream cin();
//     // ofstream cout();
    
//     vector<int> temp;
//     // temp = find_subset(15, 17, {6, 8, 8, 7});
//     // temp = find_subset(14, 15, {5, 5, 6, 6});
//     // temp = find_subset(10, 20, {15, 17, 16, 18});

//     for(int i : temp){
//         cout << i << ' ';
//     }
    
// }

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