Submission #397347

#	Time	Username	Problem	Language	Result	Execution time	Memory
397347		abdzag	Lottery (CEOI18_lot)	C++17	25 / 100	387 ms	644 KiB

lot

#include<bits/stdc++.h>

#define rep(i,a,b) for(int i=int(a);i<int(b);i++)
#define rrep(i,a,b) for(int i=int(a);i>int(b);i--)
#define all(v) v.begin(),v.end()
#define trav(a,v) for(auto&a:v)
using namespace std;
const long long inf = 1e15;
typedef long long ll;
int main() {
	cin.sync_with_stdio(false);
	ll n, l;
	cin >> n >> l;
	vector<ll> v(n);
	rep(i, 0, n)cin >> v[i];
	ll q;
	cin >> q;
	ll mx = 1000;
	ll sz = min(n - l + 1,mx);
	vector<ll> dist(n - l + 1);
	vector<vector<short>> howmany(sz,vector<short>(l+1));
	rep(i, 0,sz) {
		rep(j, 0, l) {
			if (v[i + j] != v[j])dist[i]++;
		}
	}
	rep(j, 0, dist.size()) howmany[0][dist[j]] ++;
	rep(i, 1, sz) {
		rrep(j, sz - 1, 0) {
			dist[j] = dist[j - 1];
		}
		dist[0] = 0;
		rep(j, 0, l) {
			if (v[j] != v[i + j])dist[0]++;
		}
		rep(j, 0, sz - 1) {
			dist[j + 1] -= (v[i - 1] != v[j]);
			dist[j + 1] += (v[i + l - 1] != v[j + l]);
		}
		rep(j, 0, dist.size()) howmany[i][dist[j]] ++;
	}
	vector<vector<short>> prefix(sz, vector<short>(l + 2));

	rep(i, 0, sz) {
		rep(j, 1, l + 2) {
			prefix[i][j] = prefix[i][j - 1] + howmany[i][j - 1];
		}
	}
	rep(Q, 0, q){
		ll k;
		cin >> k;
		vector<ll> res(n-l+1);
		rep(i, 0, sz) {
			res[i] = prefix[i][k+1]-1;
		}
		rep(i, sz, n - l+1) {
			rep(j, 0, l) {
				if (v[i + j] != v[j])dist[i]++;
			}
		}
		if (sz < n - l + 1) {
			rep(j, 0, n - l + 1) {
				res[sz + 1] += (dist[j] <= k);
			}
		}
		rep(i, sz+1, n - l + 1) {
			rrep(j, n - l, 0) {
				dist[j] = dist[j - 1];
			}
			dist[0] = 0;
			rep(j, 0, l) {
				if (v[j] != v[i + j])dist[0]++;
			}
			rep(j, 0, n - l) {
				dist[j+1] -= (v[i - 1] != v[j]);
				dist[j + 1] += (v[i + l-1] != v[j + l]);
			}
			rep(j, 0, n - l + 1) {
				res[i] += (dist[j] <= k);
			}
		}
		trav(a, res)cout << a << " ";
		cout << endl;
	}
	return 0;
}

• Subtask 1: 25 / 25
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20