Submission #309268

#	Time	Username	Problem	Language	Result	Execution time	Memory
309268		shivensinha4	Lottery (CEOI18_lot)	C++17	0 / 100	3069 ms	1016 KiB

lot

#include <bits/stdc++.h> 
using namespace std; 
#define for_(i, s, e) for (int i = s; i < (int) e; i++)
#define for__(i, s, e) for (ll i = s; i < e; i++)
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> ii;
#define endl '\n'
 
const int MXN = 10000, MXQ = 100;
int ans[MXQ+1][MXN+1], nums[MXN+1], match[MXN+1];
ii qr[MXQ+1];
vi pos[MXN+1];
 
int main() {
	#ifdef shiven
	freopen("test.in", "r", stdin);
	#endif
	
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	
	int n, l; cin >> n >> l;
	vector<ii> val(n);
	for_(i, 0, n) {
		cin >> nums[i];
		val[i] = {nums[i], i};
	}
	
	sort(val.begin(), val.end());
	int pt = -1;
	for_(i, 0, n) {
		if (i > 0 and val[i].first == val[i-1].first) nums[val[i].second] = pt;
		else nums[val[i].second] = ++pt;
	}
	
	for_(i, 0, n) pos[nums[i]].push_back(i);
	
	int q; cin >> q;
	for_(i, 0, q) {
		cin >> qr[i].first;
		qr[i].second = i;
	}
	
	sort(qr, qr+q);
	vi close(qr[q-1].first+1);
	pt = q-1;
	for (int i = close.size()-1; i >= 0; i--) {
		if (pt >= 0 and i == qr[pt].first) close[i] = qr[pt--].second;
		else close[i] = close[i+1];
	}
	
	for_(i, 0, n-l+1) {
		memset(match, 0, sizeof(match));
		for_(j, 0, l) for (auto p: pos[nums[i+j]]) {
			if (p == i+j) break;
			if (p >= j) match[p-j] += 1;
		}
		for_(j, 0, i) {
			if (l-match[j] >= close.size()) continue;
			int pt = close[l-match[j]];
			if (pt != q) {
				ans[pt][i] += 1;
				ans[pt][j] += 1;
			}
		}
	}
	
	for_(qq, 1, q) for_(i, 0, n-l+1) ans[qr[qq].second][i] += ans[qr[qq-1].second][i];
	
	for_(i, 0, q) {
		for_(j, 0, n-l+1) cout << ans[i][j] << " ";
		cout << endl;
	}
	
	cout << endl;
 
	return 0;
}

Compilation message (stderr)

lot.cpp: In function 'int main()':
lot.cpp:60:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |    if (l-match[j] >= close.size()) continue;
      |        ~~~~~~~~~~~^~~~~~~~~~~~~~~

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