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Submission #898403

# Submission time Handle Problem Language Result Execution time Memory
898403 2024-01-04T15:48:30 Z aqxa Mutating DNA (IOI21_dna) C++17
100 / 100
 55 ms 9760 KB 
#include <bits/stdc++.h>
using namespace std;
 
using ll = long long; 

const int N = 1e5 + 10; 
int pa[N][3], pb[N][3], n, p[N][3][3], c[3][3]; 

void init(string a, string b) {
	n = a.size(); 
	for (int i = 0; i < n; ++i) {
		int ca = (a[i] == 'A' ? 0 : (a[i] == 'T' ? 1 : 2)); 
		int cb = (b[i] == 'A' ? 0 : (b[i] == 'T' ? 1 : 2)); 
		
		pa[i + 1][ca]++; 
		pb[i + 1][cb]++; 
		p[i + 1][ca][cb]++; 
		for (int j = 0; j < 3; ++j) {
			pa[i + 1][j] += pa[i][j]; 
			pb[i + 1][j] += pb[i][j]; 
			for (int k = 0; k < 3; ++k) {
				p[i + 1][j][k] += p[i][j][k]; 
			}
		}
	}
}

int get_distance(int x, int y) {
	for (int i = 0; i < 3; ++i) {
		if (pa[y + 1][i] - pa[x][i] != pb[y + 1][i] - pb[x][i]) {
			return -1; 
		}
	}
	for (int i = 0; i < 3; ++i) {
		for (int j = 0; j < 3; ++j) {
			c[i][j] = p[y + 1][i][j] - p[x][i][j]; 
		}
	}
	int ans = 0; 
	for (int i = 0; i < 3; ++i) {
		for (int j = i + 1; j < 3; ++j) {
			int z = min(c[i][j], c[j][i]); 
			c[i][j] -= z; 
			c[j][i] -= z; 
			ans += z; 
		}
	}
	vector<int> d0, d1; 
	for (int i = 0; i < 3; ++i) {
		d0.push_back(c[i][(i + 1) % 3]);
		d1.push_back(c[i][(i + 2) % 3]); 
	}
	sort(d0.begin(), d0.end()); 
	sort(d1.begin(), d1.end()); 
	assert(d0[0] == d0[2] && d1[0] == d1[2]); 
	assert(d0[0] == 0 || d1[0] == 0); 
	return 2 * (d0[0] + d1[0]) + ans; 
}
 
// int32_t main() {
// 	ios::sync_with_stdio(false);
// 	cin.tie(nullptr);
	
// 	int m, q; 
// 	cin >> m >> q; 
// 	string a, b; 
// 	for (int i = 0; i < m; ++i) {
// 		int c = rand() % 3; 
// 		if (c == 0) a += 'A'; 
// 		if (c == 1) a += 'T'; 
// 		if (c == 2) a += 'C'; 
// 	}
// 	b = a; 
// 	random_shuffle(b.begin(), b.end()); 
// 	init(a, b); 
// 	cout << a << "\n";
// 	cout << b << "\n";

// 	for (int i = 0; i < m; ++i) {
// 		for (int j = i; j < m; ++j) {
// 			cout << "! " << i << ' ' << j << ' ' << get_distance(i, j) << '\n';
// 		}
// 	}
 
// 	return 0; 
// }

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 9492 KB Output is correct
2 Correct 55 ms 9348 KB Output is correct
3 Correct 39 ms 9104 KB Output is correct
4 Correct 39 ms 9352 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 4 ms 7004 KB Output is correct
5 Correct 5 ms 6860 KB Output is correct
6 Correct 5 ms 7004 KB Output is correct
7 Correct 4 ms 6872 KB Output is correct
8 Correct 4 ms 6980 KB Output is correct
9 Correct 3 ms 7000 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 4 ms 7004 KB Output is correct
5 Correct 5 ms 6860 KB Output is correct
6 Correct 5 ms 7004 KB Output is correct
7 Correct 4 ms 6872 KB Output is correct
8 Correct 4 ms 6980 KB Output is correct
9 Correct 3 ms 7000 KB Output is correct
10 Correct 39 ms 9492 KB Output is correct
11 Correct 40 ms 9364 KB Output is correct
12 Correct 39 ms 9644 KB Output is correct
13 Correct 45 ms 9752 KB Output is correct
14 Correct 40 ms 9728 KB Output is correct
15 Correct 44 ms 9616 KB Output is correct
16 Correct 40 ms 9412 KB Output is correct
17 Correct 39 ms 9500 KB Output is correct
18 Correct 51 ms 9744 KB Output is correct
19 Correct 39 ms 9508 KB Output is correct
20 Correct 40 ms 9492 KB Output is correct
21 Correct 39 ms 9604 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 4 ms 7004 KB Output is correct
5 Correct 5 ms 6860 KB Output is correct
6 Correct 5 ms 7004 KB Output is correct
7 Correct 4 ms 6872 KB Output is correct
8 Correct 4 ms 6980 KB Output is correct
9 Correct 3 ms 7000 KB Output is correct
10 Correct 3 ms 6740 KB Output is correct
11 Correct 3 ms 7004 KB Output is correct
12 Correct 3 ms 6872 KB Output is correct
13 Correct 4 ms 7004 KB Output is correct
14 Correct 3 ms 7004 KB Output is correct
15 Correct 3 ms 7004 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 9492 KB Output is correct
2 Correct 55 ms 9348 KB Output is correct
3 Correct 39 ms 9104 KB Output is correct
4 Correct 39 ms 9352 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 4 ms 7004 KB Output is correct
12 Correct 5 ms 6860 KB Output is correct
13 Correct 5 ms 7004 KB Output is correct
14 Correct 4 ms 6872 KB Output is correct
15 Correct 4 ms 6980 KB Output is correct
16 Correct 3 ms 7000 KB Output is correct
17 Correct 39 ms 9492 KB Output is correct
18 Correct 40 ms 9364 KB Output is correct
19 Correct 39 ms 9644 KB Output is correct
20 Correct 45 ms 9752 KB Output is correct
21 Correct 40 ms 9728 KB Output is correct
22 Correct 44 ms 9616 KB Output is correct
23 Correct 40 ms 9412 KB Output is correct
24 Correct 39 ms 9500 KB Output is correct
25 Correct 51 ms 9744 KB Output is correct
26 Correct 39 ms 9508 KB Output is correct
27 Correct 40 ms 9492 KB Output is correct
28 Correct 39 ms 9604 KB Output is correct
29 Correct 3 ms 6740 KB Output is correct
30 Correct 3 ms 7004 KB Output is correct
31 Correct 3 ms 6872 KB Output is correct
32 Correct 4 ms 7004 KB Output is correct
33 Correct 3 ms 7004 KB Output is correct
34 Correct 3 ms 7004 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 41 ms 9076 KB Output is correct
37 Correct 41 ms 9484 KB Output is correct
38 Correct 53 ms 9500 KB Output is correct
39 Correct 39 ms 9740 KB Output is correct
40 Correct 40 ms 9744 KB Output is correct
41 Correct 3 ms 7000 KB Output is correct
42 Correct 39 ms 9500 KB Output is correct
43 Correct 52 ms 9760 KB Output is correct
44 Correct 43 ms 9592 KB Output is correct
45 Correct 38 ms 9496 KB Output is correct
46 Correct 38 ms 9740 KB Output is correct
47 Correct 39 ms 9752 KB Output is correct