Submission #865554

#	Time	Username	Problem	Language	Result	Execution time	Memory
865554		Rifal	Diversity (CEOI21_diversity)	C++14	0 / 100	0 ms	348 KiB

diversity

#include <bits/stdc++.h>
#include <fstream>
//#define endl '\n'
#define mod 1000000007
#define INF 9000000000000000
using namespace std;
//ofstream fout("intel.out");
//ifstream fin("intel.in");

int main()
{
    ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
    int n, q; cin >> n >> q;
    long long sum = 0; long long dp[n+1] = {}; long long arr[n];
    for(int i = 1; i <= n; i++) dp[i] = 1;
    for(int i = 0; i < n; i++) cin >> arr[i];
    if(q == 1) {
        int l, r; cin >> l >> r;
        sort(arr,arr+n);
        sum += dp[1];
        for(long long i = 1; i < n; i++) {
            if(arr[i] != arr[i-1]) {
                dp[i+1] += i;
            }
            dp[i+1] += dp[i];
            sum += dp[i+1];
        }
        cout << sum;
    }
    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