oj.uz

Submission #434785

# Submission time Handle Problem Language Result Execution time Memory
434785 2021-06-21T20:01:22 Z rqi Comparing Plants (IOI20_plants) C++14
19 / 100
 4000 ms 8400 KB 
#include "plants.h"
#include <bits/stdc++.h>
using namespace std;

typedef vector<int> vi;
typedef pair<int, int> pi;

#define mp make_pair
#define f first
#define s second

#define sz(x) (int)(x).size()

const int mx = 200005;

int k;
vi r;
int n;
pi rangs[mx][2];

void doK2Init(){
	int start = 0;
	for(int i = 0; i < n; i++){
		if(r[i] != r[0]){
			start = i;
			break;
		}
	}

	int cur = start;

	while(true){
		int end_ind = cur;
		while(r[(end_ind+1) % n] == r[cur]){
			end_ind = (end_ind+1) % n;
		}

		pi interval = mp(cur, (end_ind+1) % n);

		// cout << cur << " " << end_ind << "\n";
		// cout << interval.f << " " << interval.s << "\n";
		for(int i = cur; ; (i = (i+1) % n)){
			if(i == cur){
				rangs[i][1] = mp(r[cur], interval.s);
			}
			else if(i == (end_ind+1) % n){
				rangs[i][0] = mp(r[cur], interval.f);
				break;
			}
			else{
				rangs[i][0] = mp(r[cur], interval.f);
				rangs[i][1] = mp(r[cur], interval.s);
			}
		}

		cur = (end_ind+1) % n;
		if(cur == start) break;
	}

	return;
}

int val[mx];

void init(int _k, vi _r) {
	k = _k;
	r = _r;
	n = sz(r);

	if(k == 2){
		doK2Init();
		return;
	}
		
	for(int i = 0; i < n; i++){
		val[i] = -1;
	}
	for(int i = n-1; i >= 0; i--){
		int cur_pos = -1;
		for(int j = 0; j < n; j++){
			if(val[j] != -1) continue;
			if(r[j] == 0){
				// cout << "j: " << j << "\n";
				if(cur_pos == -1){
					cur_pos = j;
				}
				else{
					if((j-cur_pos)*2 > n){
						cur_pos = j;
					}
				}
			}
		}
		// cout << i << " " << cur_pos << "\n";
		assert(cur_pos != -1);
		val[cur_pos] = i;

		for(int j = 0; j <= k-1; j++){
			// cout << (cur_pos-j+n) % n << "\n";
			r[(cur_pos-j+n) % n]--;
		}

		// for(int j = 0; j < n; j++){
		// 	cout << "j, r[j]: " << j << " " << r[j] << "\n";
		// }
	}
}

bool isInInterval(int test, int int_beg, int int_end){
	if(int_beg <= int_end){
		return (int_beg <= test) && (test <= int_end);
	}

	return (int_beg <= test) || (test <= int_end);
}

int doK2Compare(int x, int y){
	if(isInInterval(y, rangs[x][0].s, x)){
		if(rangs[x][0].f == 1){
			return 1;
		}
		else{
			return -1;
		}
	}
	else if(isInInterval(y, x, rangs[x][1].s)){
		if(rangs[x][1].f == 1){
			return -1;
		}
		else{
			return 1;
		}
	}
	return 0;
}

int compare_plants(int x, int y) {
	if(k == 2){
		return doK2Compare(x, y);
	}

	if(val[x] < val[y]) return -1;
	
	return 1;
}

Subtask #1
5.0 / 5.0

# 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 56 ms 3392 KB Output is correct
7 Correct 67 ms 3996 KB Output is correct
8 Correct 98 ms 8380 KB Output is correct
9 Correct 132 ms 8388 KB Output is correct
10 Correct 92 ms 8388 KB Output is correct
11 Correct 119 ms 8376 KB Output is correct
12 Correct 89 ms 8400 KB Output is correct
13 Correct 114 ms 8380 KB Output is correct
14 Correct 90 ms 8392 KB Output is correct

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 300 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 11 ms 332 KB Output is correct
7 Correct 290 ms 4048 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 12 ms 416 KB Output is correct
10 Correct 290 ms 4064 KB Output is correct
11 Correct 188 ms 3908 KB Output is correct
12 Correct 185 ms 4136 KB Output is correct
13 Correct 328 ms 4036 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 300 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 11 ms 332 KB Output is correct
7 Correct 290 ms 4048 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 12 ms 416 KB Output is correct
10 Correct 290 ms 4064 KB Output is correct
11 Correct 188 ms 3908 KB Output is correct
12 Correct 185 ms 4136 KB Output is correct
13 Correct 328 ms 4036 KB Output is correct
14 Correct 3060 ms 4424 KB Output is correct
15 Execution timed out 4077 ms 6852 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 Runtime error 1 ms 460 KB Execution killed with signal 6
3 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 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Runtime error 1 ms 460 KB Execution killed with signal 6
6 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 Correct 1 ms 204 KB Output is correct
4 Runtime error 1 ms 460 KB Execution killed with signal 6
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# 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 56 ms 3392 KB Output is correct
7 Correct 67 ms 3996 KB Output is correct
8 Correct 98 ms 8380 KB Output is correct
9 Correct 132 ms 8388 KB Output is correct
10 Correct 92 ms 8388 KB Output is correct
11 Correct 119 ms 8376 KB Output is correct
12 Correct 89 ms 8400 KB Output is correct
13 Correct 114 ms 8380 KB Output is correct
14 Correct 90 ms 8392 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 11 ms 332 KB Output is correct
21 Correct 290 ms 4048 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 12 ms 416 KB Output is correct
24 Correct 290 ms 4064 KB Output is correct
25 Correct 188 ms 3908 KB Output is correct
26 Correct 185 ms 4136 KB Output is correct
27 Correct 328 ms 4036 KB Output is correct
28 Correct 3060 ms 4424 KB Output is correct
29 Execution timed out 4077 ms 6852 KB Time limit exceeded
30 Halted 0 ms 0 KB -