Submission #558096

#	Time	Username	Problem	Language	Result	Execution time	Memory
558096		status_coding	Diversity (CEOI21_diversity)	C++14	0 / 100	1 ms	304 KiB

diversity

#include <bits/stdc++.h>

using namespace std;

long long n,q;
long long nr, ans;

long long a[300005];
long long fr[300005];

bool comp(int a, int b)
{
    return fr[a] > fr[b];
}
int main()
{
    cin>>n>>q;

    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        fr[ a[i] ] ++;
    }

    int l, r;
    cin>>l>>r;

    sort(a+1, a+n+1, comp);

    for(int i=1;i<=n;i++)
    {
        int nr=1;

        for(int j=i;j<=n;j++)
        {
            if(i != j && a[j] != a[j-1])
                nr++;

            ans += nr;
        }
    }

    cout<<ans;
    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