Submission #501740

#	Time	Username	Problem	Language	Result	Execution time	Memory
501740		stefantaga	Pairs (IOI07_pairs)	C++14	30 / 100	459 ms	485712 KiB

pairs

#include <bits/stdc++.h>

using namespace std;
int sum[75000005],v[75000005];
long long x,i,d,m,ceau,tip,n,stanga;
int main()
{
    #ifdef HOME
    ifstream cin("date.in");
    ofstream cout("date.out");
    #endif // HOME
    cin>>tip;
    if (tip==1)
    {
        cin>>n>>d>>m;
        for (i=1;i<=n;i++)
        {
            cin>>x;
            v[x]++;
        }
        for (i=1;i<=m;i++)
        {
            sum[i]=sum[i-1]+v[i];
            if (i-d-1<0)
            {
                stanga=0;
            }
            else
            {
                stanga=sum[i-d-1];
            }
            ceau=ceau+1LL*(sum[i-1]-stanga)*v[i]+(1LL*v[i]*(v[i]-1))/2;
        }
        cout<<ceau;
    }
    return 0;
}

• Subtask 1: 6 / 6
• Subtask 2: 6 / 6
• Subtask 3: 6 / 6
• Subtask 4: 6 / 6
• Subtask 5: 6 / 6
• Subtask 6: 0 / 7
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8
• Subtask 9: 0 / 8
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10
• Subtask 12: 0 / 10
• Subtask 13: 0 / 10