Submission #811055

#	Time	Username	Problem	Language	Result	Execution time	Memory
811055		manhlinh1501	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	1 ms	212 KiB

molecules

/// @author : Hoang Manh Linh
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
 
#define pii pair<int, int>
#define eb emplace_back
#define all(a) a.begin(), a.end()
#define lb(a, x) lower_bound(all(a), x) - a.begin()
 
int n;
int l, r;
 
vector<int> find_subset(int l, int r, vector<int> a) {
    int n = a.size();
    vector<i64> sum(n);
    vector<pii> res;
 
    for(int i = 0; i < n; i++)
        res.eb(a[i], i);
 
    sum.front() = res.front().first;
 
    for(int i = 1; i < n; i++)
        sum[i] = sum[i - 1] + res[i].first;
 
    vector<int> ans;
 
    for(int i = 0; i < n; i++) {
        int pos = lb(sum, sum[i] - res[i].first + l);
 
        if(pos >= n)
            continue;
 
        if(sum[pos] - sum[i] + res[i].first <= r) {
            for(int j = i; j <= pos; j++)
                ans.eb(res[j].second + 1);
 
            break;
        }
    }
 
    return ans;
}

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