Submission #835985

#	Time	Username	Problem	Language	Result	Execution time	Memory
835985		Hanksburger	Lottery (CEOI18_lot)	C++17	100 / 100	437 ms	12164 KiB

lot

#include <bits/stdc++.h>
using namespace std;
int a[10005], s[10005], lb[10005], ans[105][10005], res[105][10005];
pair<int, int> k[10005];
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, l, q;
    cin >> n >> l;
    for (int i=1; i<=n; i++)
        cin >> a[i];
    cin >> q;
    for (int i=1; i<=q; i++)
    {
        cin >> k[i].first;
        k[i].second=i;
    }
    sort(k+1, k+q+1);
    for (int i=1; i<=q; i++)
        if (!lb[k[i].first])
            lb[k[i].first]=i;
    lb[l+1]=1e9;
    for (int i=l; i>=0; i--)
        if (!lb[i])
            lb[i]=lb[i+1];
    for (int i=1; i<n-l+1; i++)
    {
        for (int j=1; j<=n-l+1-i; j++)
            s[j]=0;
        for (int u=1, v=i+1; v<=n; u++, v++)
            if (a[u]-a[v])
                s[max(1, u-l+1)]++, s[min(n-l+2-i, u+1)]--;
        for (int j=1; j<=n-l+1-i; j++)
        {
            s[j]+=s[j-1];
            if (lb[s[j]]!=1e9)
            {
                ans[lb[s[j]]][j]++;
                ans[lb[s[j]]][j+i]++;
            }
        }
    }
    for (int i=1; i<=n-l+1; i++)
        for (int j=2; j<=q; j++)
            ans[j][i]+=ans[j-1][i];
    for (int i=1; i<=q; i++)
        for (int j=1; j<=n-l+1; j++)
            res[k[i].second][j]=ans[lb[k[i].first]][j];
    for (int i=1; i<=q; i++)
    {
        for (int j=1; j<=n-l+1; j++)
            cout << res[i][j] << ' ';
        cout << '\n';
    }
}

• Subtask 1: 25 / 25
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20