oj.uz

Submission #1043219

# Submission time Handle Problem Language Result Execution time Memory
1043219 2024-08-04T05:01:33 Z thinknoexit Comparing Plants (IOI20_plants) C++17
5 / 100
 47 ms 9680 KB 
#include "plants.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 200200;
int n, k;
int ord[N], deg[N], dpl[N], dpr[N];
void init(int K, vector<int> r) {
	n = r.size();
	k = K;
	if (k == 2) {
		for (int i = 0;i < n;i++) {
			if (r[i] == 1) deg[(i + 1) % n]++;
			else deg[i]++;
		}
		for (int i = 0;i < n;i++) {
			if (deg[i] != 0) continue;
			dpl[i] = dpr[i] = 0;
			for (int j = 1;j < n;j++) {
				dpr[(i - j + n) % n] = j;
				if (deg[(i - j + n) % n] == 2) break;
			}
			for (int j = 1;j < n;j++) {
				dpl[(i + j) % n] = j;
				if (deg[(i + j) % n] == 2) break;
			}
		}
		return;
	}
	memset(ord, -1, sizeof ord);
	for (int i = n;i >= 1;i--) {
		vector<int> v;
		for (int j = 0;j < n;j++) {
			if (ord[j] == -1 && r[j] == 0) {
				v.push_back(j);
			}
		}
		int idx = 0;
		for (int j = 0;j < (int)v.size();j++) {
			if ((v[j] - v[(j + n - 1) % n] + n) % n >= k) idx = v[j];
		}
		ord[idx] = i;
		for (int j = 1;j < k;j++) {
			r[(idx - j + n) % n]--;
		}
	}
}
bool can(int x, int y) {
	int l = dpr[x], r = dpl[x];
	if (x + l >= n) {
		if (x <= y || y <= x + l - n) return 1;
	}
	else {
		if (x <= y && y <= x + l) return 1;
	}
	if (x - r < 0) {
		if (y <= x || n + x - r <= y) return 1;
	}
	else {
		if (x - r <= y && y <= x) return 1;
	}
	return 0;
}
int compare_plants(int x, int y) {
	if (k != 2) return (ord[x] > ord[y]) ? 1 : -1;
	if (can(x, y)) return 1;
	if (can(y, x)) return -1;
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 27 ms 6236 KB Output is correct
7 Correct 31 ms 7596 KB Output is correct
8 Correct 42 ms 9552 KB Output is correct
9 Correct 40 ms 9420 KB Output is correct
10 Correct 41 ms 9556 KB Output is correct
11 Correct 47 ms 9556 KB Output is correct
12 Correct 45 ms 9680 KB Output is correct
13 Correct 38 ms 9460 KB Output is correct
14 Correct 40 ms 9300 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Incorrect 0 ms 1116 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Incorrect 0 ms 1116 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Incorrect 34 ms 5612 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 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Incorrect 1 ms 1116 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Incorrect 0 ms 1116 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 27 ms 6236 KB Output is correct
7 Correct 31 ms 7596 KB Output is correct
8 Correct 42 ms 9552 KB Output is correct
9 Correct 40 ms 9420 KB Output is correct
10 Correct 41 ms 9556 KB Output is correct
11 Correct 47 ms 9556 KB Output is correct
12 Correct 45 ms 9680 KB Output is correct
13 Correct 38 ms 9460 KB Output is correct
14 Correct 40 ms 9300 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Incorrect 0 ms 1116 KB Output isn't correct
18 Halted 0 ms 0 KB -