oj.uz

Submission #413817

# Submission time Handle Problem Language Result Execution time Memory
413817 2021-05-29T14:37:57 Z abdzag Comparing Plants (IOI20_plants) C++17
14 / 100
 4000 ms 25408 KB 
#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 trav(a,v) for(auto& a: v)
#define sz(v) v.size()
#define all(v) v.begin(),v.end()
#define vi vector<int>

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const int inf = -1e9;

using namespace std;

vector<ll> sorted;
static const int infint = 1e9;
struct Node {
	Node* l = 0, * r = 0;
	int lo, hi, mset = inf, madd = 0, val = -inf;
	Node(int lo, int hi) :lo(lo), hi(hi) {} // Large interval of -inf
	Node(vi& v, int lo, int hi) : lo(lo), hi(hi) {
		if (lo + 1 < hi) {
			int mid = lo + (hi - lo) / 2;
			l = new Node(v, lo, mid); r = new Node(v, mid, hi);
			val = min(l->val, r->val);
		}
		else val = v[lo];
	}
	int query(int L, int R) {
		if (R <= lo || hi <= L) return -inf;
		if (L <= lo && hi <= R) return val;
		push();
		return min(l->query(L, R), r->query(L, R));
	}
	void set(int L, int R, int x) {
		if (R <= lo || hi <= L) return;
		if (L <= lo && hi <= R) mset = val = x, madd = 0;
		else {
			push(), l->set(L, R, x), r->set(L, R, x);
			val = min(l->val, r->val);
		}
	}
	void add(int L, int R, int x) {
		if (R <= lo || hi <= L) return;
		if (L <= lo && hi <= R) {
			if (mset != inf) mset += x;
			else madd += x;
			val += x;
		}
		else {
			push(), l->add(L, R, x), r->add(L, R, x);
			val = min(l->val, r->val);
		}
	}
	void push() {
		if (!l) {
			int mid = lo + (hi - lo) / 2;
			l = new Node(lo, mid); r = new Node(mid, hi);
		}
		if (mset != inf)
			l->set(lo, hi, mset), r->set(lo, hi, mset), mset = inf;
		else if (madd)
			l->add(lo, hi, madd), r->add(lo, hi, madd), madd = 0;
	}
};
void init(int k, std::vector<int> r) {
	ll n = r.size();
	ll indx = 0;
	Node* tree = new Node(r, 0, n);
	rrep(j, n - 1, -1) {
		if (r[j] == 0) {
			indx = j;
			break;
		}
	}
	ll cur = 0;
	rep(j, 0, n) {
		cur++;
		if (r[(indx + j) % n] == 0) {
			if (cur > k) {
				indx = (j + indx) % n;
				break;
			}
			else cur = 1;
		}
	}
	rep(i, 0, n) {
		tree->set(indx, indx + 1, 1e9);
		sorted.push_back(indx);
		ll left = indx;
		left -= (k - 1);
		left += n;
		left %= n;
		if (left + k-1 > n) {
			tree->add(left, n, -1);
			tree->add(0, left + k - n-1, -1);
		}
		else tree->add(left, left + k-1, -1);
	    left = -1;
		ll right = 0;
		ll l = 1, r = k;
		while (l <= r) {
			ll mid = l + (r - l) / 2;
			int val;
			if (indx + mid > n) {
				val=tree->query(indx, n);
				val=min(val,tree->query(0, indx + mid- n));
			}
			else val=tree->query(indx, indx + mid);
			if (val!=0) {
				l = mid + 1;
			}
			else {
				left = indx+mid-1;
				r = mid - 1;
			}
		}
		
		int val;
		if (left != -1) {
			left %= n;
			left -= (k - 1);
			left += n;
			left %= n;
			if (left + k - 1 > n) {
				val = tree->query(left, n);
				val = min(val, tree->query(0, left + k - 1 - n));
			}
			else val = tree->query(left, left + k - 1);
			if (val != 0) {
				indx = (left + k - 1)%n;
				continue;
			}
		}
		indx -= (k - 1);
		indx += n;
		indx %= n;
		l = 0, r = k;
		while (l <= r) {
			ll mid = l + (r - l) / 2;
			int val;
			if (indx + mid > n) {
				val = tree->query(indx, n);
				val = min(val, tree->query(0, indx + mid - n));
			}
			else val = tree->query(indx, indx + mid);
			if (val!=0) {
				l = mid + 1;
			}
			else {
				right = indx + mid-1;
				r = mid - 1;
			}
		}
		right %= n;
		indx = right;
	}
	reverse(all(sorted));
}

int compare_plants(int x, int y) {
	if (find(all(sorted), x) - find(all(sorted), y) > 0)return 1;
	return -1;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 9 ms 460 KB Output is correct
7 Correct 656 ms 3632 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 9 ms 452 KB Output is correct
10 Correct 575 ms 3640 KB Output is correct
11 Correct 569 ms 3628 KB Output is correct
12 Correct 602 ms 3764 KB Output is correct
13 Correct 566 ms 3652 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 9 ms 460 KB Output is correct
7 Correct 656 ms 3632 KB Output is correct
8 Correct 3 ms 332 KB Output is correct
9 Correct 9 ms 452 KB Output is correct
10 Correct 575 ms 3640 KB Output is correct
11 Correct 569 ms 3628 KB Output is correct
12 Correct 602 ms 3764 KB Output is correct
13 Correct 566 ms 3652 KB Output is correct
14 Correct 2162 ms 5348 KB Output is correct
15 Execution timed out 4043 ms 25408 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 429 ms 3384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -