Submission #955407

#	Time	Username	Problem	Language	Result	Execution time	Memory
955407		yoav_s	Diversity (CEOI21_diversity)	C++17	0 / 100	2 ms	2652 KiB

diversity

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<ll> v;
typedef vector<v> vv;
typedef vector<vv> vvv;
typedef pair<ll,ll> p;
typedef vector<p> vp;
typedef vector<vp> vvp;
typedef vector<vvp> vvvp;
typedef pair<ll, p> tri;
typedef vector<tri> vtri;
typedef vector<vtri> vvtri;
typedef vector<vvtri> vvvtri;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<vvb> vvvb;

#define f first
#define s second
#define pb push_back
#define eb emplace_back
#define all(v) (v).begin(),(v).end()

const ll INF = 1e18;
const ll mod = 1e9 + 7;
const ll maxValue = 3e5;

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    ll N, Q;
    cin >> N >> Q;
    v a(N);
    for (ll i = 0; i < N; i++) cin >> a[i];
    sort(all(a));
    v histogram(maxValue + 1, 0);
    ll res = 0;
    for (ll i=  0; i < N; i++)
    {
        ll uniqueCount = 0;
        v changed;
        for (ll j = i; j < N; j++)
        {
            histogram[a[j]]++;
            changed.pb(a[j]);
            if (histogram[a[j]] == 1) uniqueCount++;
            res += uniqueCount;
        }
        for (ll x : changed) histogram[x] = 0;
    }
    cout << res << "\n";
    return 0;
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 10
• Subtask 3: 0 / 8
• Subtask 4: 0 / 16
• Subtask 5: 0 / 26
• Subtask 6: 0 / 36