Submission #617412

#	Time	Username	Problem	Language	Result	Execution time	Memory
617412		drdilyor	Diversity (CEOI21_diversity)	C++17	0 / 100	2 ms	320 KiB

diversity

#include <bits/stdc++.h>
#ifdef ONPC
#define cerr cout
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define sz(a) ((int)(a).size())
using namespace std;
using ll = long long;
const int INF = 1e9;
const ll INFL = 1e18;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);
template<typename T, typename U> istream& operator>>(istream& is, pair<T, U>& p) { return is >> p.first >> p.second; }
const int N = 3e5, LOGN = 17, MOD = 1e9+7;

int solve() {
    int n, q;
    if (!(cin >> n >> q)) {
        return 1;
    }
    vector<int> arr(n);
    for (auto& i : arr) {cin >> i;}

    auto total = [&](vector<int> a) {
        int res = 0;
        for (int i = 0; i < sz(a); i++) {
            for (int j = i; j < sz(a); j++) {
                set<int> values;
                for (int k = i; k <= j; k++) {
                    values.insert(a[k]);
                }
                res += sz(values);
            }
        }
        return res;
    };


    sort(arr.begin(), arr.end());
    cout << total(arr) << '\n';
    
    return 0;
}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    #ifdef ONPC
    t = 10000;
    #endif
    while (t-- && cin) {
        if (solve()) break;
        #ifdef ONPC
            cout << "____________________" << endl;
        #endif
    }
    return 0;
}

/*
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 ▒▒▒▒▒▒▒▒ ▒▒▒▒▒      ▒▒▒▒▒▒▒▒ ▒▒▒▒▒ ▒▒▒▒▒   ▒▒▒▒▒███  ▒▒▒▒▒▒  ▒▒▒▒▒     
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*/

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