oj.uz

Submission #431626

# Submission time Handle Problem Language Result Execution time Memory
431626 2021-06-17T13:49:12 Z rainboy Simurgh (IOI17_simurgh) C++
51 / 100
 210 ms 3404 KB 
#include "simurgh.h"
#include <string.h>

using namespace std;

#define N	240
#define M	(N * (N - 1) / 2)

typedef vector<int> vi;

int ds[N];

int find(int i) {
	return ds[i] < 0 ? i : (ds[i] = find(ds[i]));
}

int join(int i, int j) {
	i = find(i);
	j = find(j);
	if (i == j)
		return 0;
	if (ds[i] > ds[j])
		ds[i] = j;
	else {
		if (ds[i] == ds[j])
			ds[i]--;
		ds[j] = i;
	}
	return 1;
}

char cc[M]; int qu[M], cnt;

vi find_roads(int n, vi ii, vi jj) {
	int m = ii.size(), m_, g, h, h_, k, k_;
	vi hh(n - 1);

	memset(cc, -1, m * sizeof *cc);
	while (1) {
		memset(ds, -1, n * sizeof *ds);
		m_ = 0;
		for (h = 0; h < m; h++)
			if (cc[h] == 1)
				join(ii[h], jj[h]), hh[m_++] = h;
		if (m_ == n - 1)
			break;
		g = m_;
		for (h = 0; h < m; h++)
			if (cc[h] == -1 && join(ii[h], jj[h]))
				hh[m_++] = h;
		k = count_common_roads(hh);
		memset(ds, -1, n * sizeof *ds);
		for (h = 0; h < n - 1; h++)
			if (h != g)
				join(ii[hh[h]], jj[hh[h]]);
		h_ = hh[g];
		cnt = 0, qu[cnt++] = h_;
		for (h = 0; h < m; h++)
			if (cc[h] == -1 && h != h_ && find(ii[h]) != find(jj[h])) {
				hh[g] = h;
				k_ = count_common_roads(hh);
				if (k_ == k + 1) {
					while (cnt--)
						cc[qu[cnt]] = 0;
					cc[h] = 1;
					break;
				} else if (k_ == k - 1) {
					while (cnt--)
						cc[qu[cnt]] = 1;
					cc[h] = 0;
					break;
				}
				qu[cnt++] = h;
			}
		if (cnt > 0)
			while (cnt--)
				cc[qu[cnt]] = 1;
	}
	return hh;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB correct
2 Correct 1 ms 280 KB correct
3 Correct 0 ms 204 KB correct
4 Correct 0 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 0 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 0 ms 204 KB correct
9 Correct 0 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 0 ms 280 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 204 KB correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB correct
2 Correct 1 ms 280 KB correct
3 Correct 0 ms 204 KB correct
4 Correct 0 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 0 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 0 ms 204 KB correct
9 Correct 0 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 0 ms 280 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 204 KB correct
14 Correct 2 ms 204 KB correct
15 Correct 3 ms 204 KB correct
16 Correct 4 ms 268 KB correct
17 Correct 3 ms 204 KB correct
18 Correct 1 ms 204 KB correct
19 Correct 2 ms 204 KB correct
20 Correct 2 ms 224 KB correct
21 Correct 2 ms 204 KB correct
22 Correct 1 ms 204 KB correct
23 Correct 1 ms 204 KB correct
24 Correct 1 ms 204 KB correct
25 Correct 1 ms 204 KB correct
26 Correct 1 ms 280 KB correct
27 Correct 1 ms 204 KB correct
28 Correct 1 ms 292 KB correct
29 Correct 1 ms 204 KB correct
30 Correct 1 ms 204 KB correct
31 Correct 1 ms 204 KB correct
32 Correct 1 ms 204 KB correct
33 Correct 1 ms 204 KB correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB correct
2 Correct 1 ms 280 KB correct
3 Correct 0 ms 204 KB correct
4 Correct 0 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 0 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 0 ms 204 KB correct
9 Correct 0 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 0 ms 280 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 204 KB correct
14 Correct 2 ms 204 KB correct
15 Correct 3 ms 204 KB correct
16 Correct 4 ms 268 KB correct
17 Correct 3 ms 204 KB correct
18 Correct 1 ms 204 KB correct
19 Correct 2 ms 204 KB correct
20 Correct 2 ms 224 KB correct
21 Correct 2 ms 204 KB correct
22 Correct 1 ms 204 KB correct
23 Correct 1 ms 204 KB correct
24 Correct 1 ms 204 KB correct
25 Correct 1 ms 204 KB correct
26 Correct 1 ms 280 KB correct
27 Correct 1 ms 204 KB correct
28 Correct 1 ms 292 KB correct
29 Correct 1 ms 204 KB correct
30 Correct 1 ms 204 KB correct
31 Correct 1 ms 204 KB correct
32 Correct 1 ms 204 KB correct
33 Correct 1 ms 204 KB correct
34 Correct 201 ms 848 KB correct
35 Correct 203 ms 872 KB correct
36 Correct 138 ms 588 KB correct
37 Correct 12 ms 204 KB correct
38 Correct 205 ms 892 KB correct
39 Correct 183 ms 716 KB correct
40 Correct 142 ms 588 KB correct
41 Correct 190 ms 888 KB correct
42 Correct 210 ms 892 KB correct
43 Correct 37 ms 556 KB correct
44 Correct 31 ms 552 KB correct
45 Correct 33 ms 516 KB correct
46 Correct 28 ms 540 KB correct
47 Correct 18 ms 332 KB correct
48 Correct 5 ms 204 KB correct
49 Correct 8 ms 204 KB correct
50 Correct 15 ms 392 KB correct
51 Correct 42 ms 588 KB correct
52 Correct 32 ms 452 KB correct
53 Correct 29 ms 504 KB correct
54 Correct 35 ms 588 KB correct
55 Correct 33 ms 588 KB correct
56 Correct 33 ms 588 KB correct
57 Correct 35 ms 608 KB correct

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB correct
2 Correct 0 ms 204 KB correct
3 Runtime error 25 ms 3404 KB Execution killed with signal 6
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB correct
2 Correct 1 ms 280 KB correct
3 Correct 0 ms 204 KB correct
4 Correct 0 ms 204 KB correct
5 Correct 1 ms 204 KB correct
6 Correct 0 ms 204 KB correct
7 Correct 1 ms 204 KB correct
8 Correct 0 ms 204 KB correct
9 Correct 0 ms 204 KB correct
10 Correct 1 ms 204 KB correct
11 Correct 0 ms 280 KB correct
12 Correct 1 ms 204 KB correct
13 Correct 1 ms 204 KB correct
14 Correct 2 ms 204 KB correct
15 Correct 3 ms 204 KB correct
16 Correct 4 ms 268 KB correct
17 Correct 3 ms 204 KB correct
18 Correct 1 ms 204 KB correct
19 Correct 2 ms 204 KB correct
20 Correct 2 ms 224 KB correct
21 Correct 2 ms 204 KB correct
22 Correct 1 ms 204 KB correct
23 Correct 1 ms 204 KB correct
24 Correct 1 ms 204 KB correct
25 Correct 1 ms 204 KB correct
26 Correct 1 ms 280 KB correct
27 Correct 1 ms 204 KB correct
28 Correct 1 ms 292 KB correct
29 Correct 1 ms 204 KB correct
30 Correct 1 ms 204 KB correct
31 Correct 1 ms 204 KB correct
32 Correct 1 ms 204 KB correct
33 Correct 1 ms 204 KB correct
34 Correct 201 ms 848 KB correct
35 Correct 203 ms 872 KB correct
36 Correct 138 ms 588 KB correct
37 Correct 12 ms 204 KB correct
38 Correct 205 ms 892 KB correct
39 Correct 183 ms 716 KB correct
40 Correct 142 ms 588 KB correct
41 Correct 190 ms 888 KB correct
42 Correct 210 ms 892 KB correct
43 Correct 37 ms 556 KB correct
44 Correct 31 ms 552 KB correct
45 Correct 33 ms 516 KB correct
46 Correct 28 ms 540 KB correct
47 Correct 18 ms 332 KB correct
48 Correct 5 ms 204 KB correct
49 Correct 8 ms 204 KB correct
50 Correct 15 ms 392 KB correct
51 Correct 42 ms 588 KB correct
52 Correct 32 ms 452 KB correct
53 Correct 29 ms 504 KB correct
54 Correct 35 ms 588 KB correct
55 Correct 33 ms 588 KB correct
56 Correct 33 ms 588 KB correct
57 Correct 35 ms 608 KB correct
58 Correct 1 ms 204 KB correct
59 Correct 0 ms 204 KB correct
60 Runtime error 25 ms 3404 KB Execution killed with signal 6
61 Halted 0 ms 0 KB -