Submission #879918

#	Time	Username	Problem	Language	Result	Execution time	Memory
879918		_KuroNeko_	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	40 ms	7232 KiB

molecules

#include<bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
// #define ordered_set tree<ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update>
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std;
typedef long long ll;
typedef long double ldb;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<double> vdb;
typedef vector<vector<int>> vvi;
typedef vector<vector<ll>> vvl;
typedef vector<string> vs;
typedef set<int> si;
typedef set<long long> sl;
typedef set<double> sdb;
typedef set<string> ss;
typedef set<char> sc;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define ftb(i, a, b) for (int i = a, _b = b; i <= _b; ++i)
#define ft(i, a, b) for (int i = a, _b = b; i < _b; ++i)
#define fgb(i, a, b) for (int i = a, _b = b; i >= _b; --i)
#define fg(i, a, b) for (int i = a, _b = b; i > _b; --i)
#define endl "\n"
vector<int> find_subset(int l, int u, vi w) {
    int n = w.size();
    vector<pll> a(n);
    ft(i, 0, n) {
        a[i].first = w[i];
        a[i].second = i;
    }
    sort(a.begin(), a.end());
    vi ans;
    int left = 0, right = 0;
    ll sum = 0;
    ft(i, 0, n) {
        sum += a[i].first;
        if (sum < l) continue;
        while (sum > u) {
            sum -= a[left].first;
            left++;
        }
        if (sum >= l && sum <= u) {
            ftb(j, left, i) {
                ans.push_back(a[j].second);
            }
            return ans;
        }
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, vi)':
molecules.cpp:38:19: warning: unused variable 'right' [-Wunused-variable]
   38 |     int left = 0, right = 0;
      |                   ^~~~~

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