oj.uz

Submission #107096

# Submission time Handle Problem Language Result Execution time Memory
107096 2019-04-21T22:32:43 Z Noam527 Koala Game (APIO17_koala) C++17
100 / 100
 73 ms 512 KB 
#include <bits/stdc++.h>
#define CHECK cout << "ok" << endl
#define finish(x) return cout << x << endl, 0
typedef long long ll;
typedef long double ldb;
const int md = 1e9 + 7;
const ll inf = 1e18;
const int OO = 1;
const int OOO = 1;
using namespace std;

// returns such i that we get [i, r], [l, i - 1]
int put(int l, int r, int x = -1) {
	const int n = 100;
	if (x == -1) {
		x = n / (r - l + 1);
	}
	int at = r + 1, cost = 0, sum = 0, cnt = 0;
	int best = r + 1;
	pair<int, int> mx = { -1, -1 };
	while (at > l && cost + x + 1 <= n) {
		at--;
		sum += at;
		cnt++;
		cost += x + 1;
	}
	vector<int> other;
	for (int i = n; i >= 1; i--) {
		if (i < l || r < i) other.push_back(i);
	}
	int pos = -1;
	while (pos + 1 < other.size() && cost < n) {
		pos++;
		cost++;
		cnt++;
		sum += other[pos];
	}
	if (mx < make_pair(sum, cnt))
		mx = { sum, cnt }, best = at;

	while (at <= r) {
		cost -= x + 1;
		sum -= at;
		cnt--;
		at++;
		while (pos + 1 < other.size() && cost < n) {
			pos++;
			cost++;
			cnt++;
			sum += other[pos];
		}
		if (mx < make_pair(sum, cnt))
			mx = { sum, cnt }, best = at;
	}
	return best;
}

int nn;
void playRound(int *B, int *R);
/*
void playRound(int *B, int *R) {
	cout << "B: ";
	for (int i = 0; i < nn; i++) cout << B[i] << " "; cout << '\n';
	cout << "R: ";
	for (int i = 0; i < nn; i++) cin >> R[i];
}
*/
int B[105], R[105];

void clear() {
	for (int i = 0; i < nn; i++) B[i] = 0;
}
void play() {
	playRound(B, R);
}
vector<int> atleast(int k) {
	vector<int> rtn;
	for (int i = 0; i < nn; i++)
		if (R[i] >= k) rtn.push_back(i);
	return rtn;
}
vector<int> atmost(int k) {
	vector<int> rtn;
	for (int i = 0; i < nn; i++)
		if (R[i] <= k) rtn.push_back(i);
	return rtn;
}

int minValue(int n, int w) {
	nn = n;
	clear();
	B[0] = 1;
	play();
	
	vector<int> pos = atmost(0);
	if (pos.size()) return pos[0];
	return 0;
}

int maxValue(int n, int w) {
	nn = n;
	vector<int> prev, cur;
	for (int i = 0; i < n; i++) prev.push_back(i);
	while (prev.size() > 1) {
		clear();
		int val = n / int(prev.size());
		for (const auto &i : prev) B[i] = val;
		play();

		cur = atleast(1 + val);
		vector<int> cut;
		int p1 = 0, p2 = 0;
		while (p1 < prev.size() && p2 < cur.size()) {
			if (prev[p1] == cur[p2]) cut.push_back(prev[p1]), p1++, p2++;
			else if (prev[p1] < cur[p2]) p1++;
			else p2++;
		}
		prev = cut;
	}
	return prev[0];
}

int greaterValue(int n, int w) {
	nn = n;
	vector<int> opt = { 1,2,3,4,5,6,8 };
	int lo = 0, hi = 6, mi, mid;
	while (lo < hi) {
		mi = (lo + hi) / 2;
		mid = opt[mi];
		clear();
		B[0] = B[1] = mid;
		play();
		if (R[0] > mid && R[1] > mid) lo = mi + 1;
		else if (R[0] <= mid && R[1] <= mid) hi = mi - 1;
		else {
			if (R[0] > mid) return 0;
			return 1;
		}
	}
	clear();
	B[0] = B[1] = opt[lo];
	play();
	if (R[0] > lo) return 0;
	return 1;
}

bool cmp(int x, int y) {
	clear();
	B[x] = B[y] = 100;
	play();
	if (R[x] > 100) return false;
	return true;
}

int arr1[105], arr2[105];

void mergesort(vector<int> &a, int l, int r) {
	if (l >= r) return;
	int mid = (l + r) / 2;
	mergesort(a, l, mid);
	mergesort(a, mid + 1, r);
	int sz1 = 0, sz2 = 0, p1 = 0, p2 = 0;
	for (int i = l; i <= mid; i++)
		arr1[sz1++] = a[i];
	for (int i = mid + 1; i <= r; i++)
		arr2[sz2++] = a[i];
	while (p1 < sz1 && p2 < sz2) {
		if (cmp(arr1[p1], arr2[p2])) a[l + p1 + p2] = arr1[p1], p1++;
		else a[l + p1 + p2] = arr2[p2], p2++;
	}
	while (p1 < sz1)
		a[l + p1 + p2] = arr1[p1], p1++;
	while (p2 < sz2)
		a[l + p1 + p2] = arr2[p2], p2++;
}

int ans[105];

void calc(int l, int r, vector<int> pos) {
	if (l == r) {
		ans[pos[0]] = l;
		return;
	}
	int val = 1;
	while (put(l, r, val) == l) val++;
	clear();
	for (const auto &i : pos) B[i] = val;
	play();
	vector<int> small, big;
	for (const auto &i : pos)
		if (R[i] > val)
			big.push_back(i);
		else
			small.push_back(i);
	calc(l, l + (int)small.size() - 1, small);
	calc(l + (int)small.size(), r, big);
}

void allValues(int n, int w, int *P) {
	nn = n;
	if (w == 2 * n) {
		vector<int> p;
		for (int i = 0; i < n; i++) p.push_back(i);
		mergesort(p, 0, n - 1);
		for (int i = 0; i < n; i++)
			P[p[i]] = 1 + i;
		return;
	}
	else {
		vector<int> pos;
		for (int i = 0; i < n; i++) pos.push_back(i);
		calc(1, n, pos);
		for (int i = 0; i < n; i++) P[i] = ans[i];
	}
}
/*
int main() {
	int n;
	cin >> n;
	int res[105];
	allValues(n, n, res);
	cout << "the answer\n";
	for (int i = 0; i < n; i++) cout << res[i] << " "; cout << '\n';
}
*/

Compilation message

koala.cpp: In function 'int put(int, int, int)':
koala.cpp:32:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (pos + 1 < other.size() && cost < n) {
         ~~~~~~~~^~~~~~~~~~~~~~
koala.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while (pos + 1 < other.size() && cost < n) {
          ~~~~~~~~^~~~~~~~~~~~~~
koala.cpp: In function 'int maxValue(int, int)':
koala.cpp:113:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while (p1 < prev.size() && p2 < cur.size()) {
          ~~~^~~~~~~~~~~~~
koala.cpp:113:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while (p1 < prev.size() && p2 < cur.size()) {
                              ~~~^~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 384 KB Output is correct
2 Correct 16 ms 384 KB Output is correct
3 Correct 23 ms 384 KB Output is correct
4 Correct 17 ms 384 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 384 KB Output is correct
2 Correct 73 ms 512 KB Output is correct
3 Correct 69 ms 384 KB Output is correct
4 Correct 65 ms 512 KB Output is correct
5 Correct 58 ms 384 KB Output is correct
6 Correct 59 ms 384 KB Output is correct
7 Correct 59 ms 384 KB Output is correct
8 Correct 59 ms 504 KB Output is correct
9 Correct 57 ms 384 KB Output is correct
10 Correct 61 ms 384 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 384 KB Output is correct
2 Correct 30 ms 384 KB Output is correct
3 Correct 31 ms 384 KB Output is correct
4 Correct 30 ms 512 KB Output is correct
5 Correct 27 ms 384 KB Output is correct
6 Correct 28 ms 384 KB Output is correct
7 Correct 30 ms 376 KB Output is correct
8 Correct 27 ms 384 KB Output is correct
9 Correct 27 ms 376 KB Output is correct
10 Correct 27 ms 384 KB Output is correct
11 Correct 28 ms 424 KB Output is correct
12 Correct 19 ms 356 KB Output is correct
13 Correct 30 ms 384 KB Output is correct
14 Correct 28 ms 384 KB Output is correct
15 Correct 31 ms 384 KB Output is correct
16 Correct 26 ms 384 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 28 ms 384 KB Output is correct
19 Correct 28 ms 512 KB Output is correct
20 Correct 29 ms 384 KB Output is correct

Subtask #5
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 8 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 6 ms 512 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 6 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 7 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 428 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 6 ms 388 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 6 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 356 KB Output is correct
28 Correct 6 ms 380 KB Output is correct
29 Correct 6 ms 384 KB Output is correct
30 Correct 6 ms 384 KB Output is correct
31 Correct 8 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 6 ms 384 KB Output is correct
34 Correct 6 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 6 ms 384 KB Output is correct
38 Correct 6 ms 384 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 6 ms 384 KB Output is correct