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Submission #437411

# Submission time Handle Problem Language Result Execution time Memory
437411 2021-06-26T09:50:30 Z ecnerwala Mutating DNA (IOI21_dna) C++17
100 / 100
 58 ms 6272 KB 
#include "dna.h"

#include <bits/stdc++.h>

namespace ecnerwala {
std::vector<std::array<int, 9>> pref;
}

void init(std::string A, std::string B) {
	using namespace ecnerwala;
	assert(A.size() == B.size());
	int N = int(A.size());
	pref.resize(N+1);
	pref[0].fill(0);
	auto char_to_val = [](char c) -> int {
		switch (c) {
			case 'A': return 0;
			case 'C': return 1;
			case 'T': return 2;
			default: assert(false);
		}
	};
	for (int i = 0; i < N; i++) {
		pref[i+1] = pref[i];
		++pref[i+1][char_to_val(A[i]) * 3 + char_to_val(B[i])];
	}
}

int get_distance(int x, int y) {
	using namespace ecnerwala;
	y++;
	assert(0 <= x && x < y && y < int(pref.size()));

	std::array<int, 9> cnt;
	for (int i = 0; i < 9; i++) cnt[i] = pref[y][i] - pref[x][i];

	int d1 = cnt[1] - cnt[3];
	int d2 = cnt[5] - cnt[7];
	int d3 = cnt[6] - cnt[2];
	if (d1 != d2 || d2 != d3) return -1;
	int ans = 0;
	ans += std::min(cnt[1], cnt[3]);
	ans += std::min(cnt[2], cnt[6]);
	ans += std::min(cnt[7], cnt[5]);
	ans += std::abs(d1) * 2;
	return ans;
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 5636 KB Output is correct
2 Correct 48 ms 5748 KB Output is correct
3 Correct 42 ms 5476 KB Output is correct
4 Correct 43 ms 5744 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #2
22.0 / 22.0

# 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 7 ms 4452 KB Output is correct
5 Correct 6 ms 4464 KB Output is correct
6 Correct 6 ms 4448 KB Output is correct
7 Correct 7 ms 4172 KB Output is correct
8 Correct 6 ms 4428 KB Output is correct
9 Correct 6 ms 4464 KB Output is correct

Subtask #3
13.0 / 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 7 ms 4452 KB Output is correct
5 Correct 6 ms 4464 KB Output is correct
6 Correct 6 ms 4448 KB Output is correct
7 Correct 7 ms 4172 KB Output is correct
8 Correct 6 ms 4428 KB Output is correct
9 Correct 6 ms 4464 KB Output is correct
10 Correct 42 ms 5784 KB Output is correct
11 Correct 52 ms 5752 KB Output is correct
12 Correct 41 ms 5860 KB Output is correct
13 Correct 56 ms 5984 KB Output is correct
14 Correct 41 ms 6056 KB Output is correct
15 Correct 43 ms 6008 KB Output is correct
16 Correct 41 ms 5856 KB Output is correct
17 Correct 39 ms 6008 KB Output is correct
18 Correct 51 ms 6144 KB Output is correct
19 Correct 48 ms 5860 KB Output is correct
20 Correct 37 ms 6004 KB Output is correct
21 Correct 50 ms 6144 KB Output is correct

Subtask #4
28.0 / 28.0

# 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 7 ms 4452 KB Output is correct
5 Correct 6 ms 4464 KB Output is correct
6 Correct 6 ms 4448 KB Output is correct
7 Correct 7 ms 4172 KB Output is correct
8 Correct 6 ms 4428 KB Output is correct
9 Correct 6 ms 4464 KB Output is correct
10 Correct 6 ms 4172 KB Output is correct
11 Correct 6 ms 4428 KB Output is correct
12 Correct 6 ms 4172 KB Output is correct
13 Correct 7 ms 4512 KB Output is correct
14 Correct 6 ms 4428 KB Output is correct
15 Correct 5 ms 4464 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 5636 KB Output is correct
2 Correct 48 ms 5748 KB Output is correct
3 Correct 42 ms 5476 KB Output is correct
4 Correct 43 ms 5744 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 7 ms 4452 KB Output is correct
12 Correct 6 ms 4464 KB Output is correct
13 Correct 6 ms 4448 KB Output is correct
14 Correct 7 ms 4172 KB Output is correct
15 Correct 6 ms 4428 KB Output is correct
16 Correct 6 ms 4464 KB Output is correct
17 Correct 42 ms 5784 KB Output is correct
18 Correct 52 ms 5752 KB Output is correct
19 Correct 41 ms 5860 KB Output is correct
20 Correct 56 ms 5984 KB Output is correct
21 Correct 41 ms 6056 KB Output is correct
22 Correct 43 ms 6008 KB Output is correct
23 Correct 41 ms 5856 KB Output is correct
24 Correct 39 ms 6008 KB Output is correct
25 Correct 51 ms 6144 KB Output is correct
26 Correct 48 ms 5860 KB Output is correct
27 Correct 37 ms 6004 KB Output is correct
28 Correct 50 ms 6144 KB Output is correct
29 Correct 6 ms 4172 KB Output is correct
30 Correct 6 ms 4428 KB Output is correct
31 Correct 6 ms 4172 KB Output is correct
32 Correct 7 ms 4512 KB Output is correct
33 Correct 6 ms 4428 KB Output is correct
34 Correct 5 ms 4464 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 41 ms 5480 KB Output is correct
37 Correct 44 ms 5752 KB Output is correct
38 Correct 44 ms 5900 KB Output is correct
39 Correct 58 ms 6264 KB Output is correct
40 Correct 49 ms 6272 KB Output is correct
41 Correct 6 ms 4428 KB Output is correct
42 Correct 43 ms 5852 KB Output is correct
43 Correct 40 ms 6204 KB Output is correct
44 Correct 50 ms 6140 KB Output is correct
45 Correct 37 ms 5996 KB Output is correct
46 Correct 43 ms 6216 KB Output is correct
47 Correct 48 ms 6164 KB Output is correct