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Submission #783715

# Submission time Handle Problem Language Result Execution time Memory
783715 2023-07-15T08:51:00 Z mousebeaver Mutating DNA (IOI21_dna) C++17
100 / 100
 34 ms 8952 KB 
#include "dna.h"
#include <bits/stdc++.h>
using namespace std;

const int N = 100000;
int diff[N];
int Aa[N];
int Ca[N];
int Ab[N];
int Cb[N];

int ind(char c)
{
	if(c == 'A')
	{
		return 0;
	}
	else if(c == 'C')
	{
		return 1;
	}
	return 2;
}

int adjlist[N][3][3]; //Letter string a, letter string b

void init(std::string a, std::string b) 
{
	Aa[0] = (a[0] == 'A');
	Ca[0] = (a[0] == 'C');
	Ab[0] = (b[0] == 'A');
	Cb[0] = (b[0] == 'C');
	for(int c = 0; c < 3; c++)
	{
		for(int d = 0; d < 3; d++)
		{
			adjlist[0][c][d] = 0;
		}
	}
	adjlist[0][ind(a[0])][ind(b[0])] = 1;

	int n = a.length();
	for(int i = 1; i < n; i++)
	{
		Aa[i] = Aa[i-1]+(a[i] == 'A');
		Ca[i] = Ca[i-1]+(a[i] == 'C');
		Ab[i] = Ab[i-1]+(b[i] == 'A');
		Cb[i] = Cb[i-1]+(b[i] == 'C');

		for(int c = 0; c < 3; c++)
		{
			for(int d = 0; d < 3; d++)
			{
				adjlist[i][c][d] = adjlist[i-1][c][d];
			}
		}
		adjlist[i][ind(a[i])][ind(b[i])]++;
	}
}

int get_distance(int x, int y) 
{
	if(Aa[y] - (x == 0 ? 0 : Aa[x-1]) != Ab[y] - (x== 0 ? 0 : Ab[x-1]) ||
		Ca[y] - (x == 0 ? 0 : Ca[x-1]) != Cb[y] - (x== 0 ? 0 : Cb[x-1]))
	{
		return -1;
	}

	int counter[3][3];
	for(int c = 0; c < 3; c++)
	{
		for(int d = 0; d < 3; d++)
		{
			counter[c][d] = adjlist[y][c][d] - (x == 0 ? 0 : adjlist[x-1][c][d]);
		}
	}

	int output = 0;
	for(int i = 0; i < 3; i++)
	{
		counter[i][i] = 0;
		for(int j = 0; j < 3; j++)
		{
			if(i == j) continue;
			int m = min(counter[i][j], counter[j][i]);
			counter[i][j] -= m;
			counter[j][i] -= m;
			output += m;
		}
	}

	output += max(counter[0][1], counter[0][2])*2;
	
	return output;
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 7136 KB Output is correct
2 Correct 29 ms 7220 KB Output is correct
3 Correct 26 ms 6796 KB Output is correct
4 Correct 27 ms 7244 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 4 ms 5844 KB Output is correct
5 Correct 4 ms 5972 KB Output is correct
6 Correct 4 ms 5844 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 5 ms 6100 KB Output is correct
9 Correct 3 ms 6116 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 4 ms 5844 KB Output is correct
5 Correct 4 ms 5972 KB Output is correct
6 Correct 4 ms 5844 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 5 ms 6100 KB Output is correct
9 Correct 3 ms 6116 KB Output is correct
10 Correct 27 ms 8496 KB Output is correct
11 Correct 27 ms 8556 KB Output is correct
12 Correct 29 ms 8472 KB Output is correct
13 Correct 29 ms 8688 KB Output is correct
14 Correct 29 ms 8952 KB Output is correct
15 Correct 28 ms 8840 KB Output is correct
16 Correct 28 ms 8424 KB Output is correct
17 Correct 30 ms 8544 KB Output is correct
18 Correct 28 ms 8876 KB Output is correct
19 Correct 28 ms 8500 KB Output is correct
20 Correct 26 ms 8612 KB Output is correct
21 Correct 27 ms 8824 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 4 ms 5844 KB Output is correct
5 Correct 4 ms 5972 KB Output is correct
6 Correct 4 ms 5844 KB Output is correct
7 Correct 4 ms 5716 KB Output is correct
8 Correct 5 ms 6100 KB Output is correct
9 Correct 3 ms 6116 KB Output is correct
10 Correct 4 ms 5588 KB Output is correct
11 Correct 4 ms 6100 KB Output is correct
12 Correct 4 ms 5716 KB Output is correct
13 Correct 5 ms 6100 KB Output is correct
14 Correct 5 ms 6080 KB Output is correct
15 Correct 5 ms 6100 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 7136 KB Output is correct
2 Correct 29 ms 7220 KB Output is correct
3 Correct 26 ms 6796 KB Output is correct
4 Correct 27 ms 7244 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 4 ms 5844 KB Output is correct
12 Correct 4 ms 5972 KB Output is correct
13 Correct 4 ms 5844 KB Output is correct
14 Correct 4 ms 5716 KB Output is correct
15 Correct 5 ms 6100 KB Output is correct
16 Correct 3 ms 6116 KB Output is correct
17 Correct 27 ms 8496 KB Output is correct
18 Correct 27 ms 8556 KB Output is correct
19 Correct 29 ms 8472 KB Output is correct
20 Correct 29 ms 8688 KB Output is correct
21 Correct 29 ms 8952 KB Output is correct
22 Correct 28 ms 8840 KB Output is correct
23 Correct 28 ms 8424 KB Output is correct
24 Correct 30 ms 8544 KB Output is correct
25 Correct 28 ms 8876 KB Output is correct
26 Correct 28 ms 8500 KB Output is correct
27 Correct 26 ms 8612 KB Output is correct
28 Correct 27 ms 8824 KB Output is correct
29 Correct 4 ms 5588 KB Output is correct
30 Correct 4 ms 6100 KB Output is correct
31 Correct 4 ms 5716 KB Output is correct
32 Correct 5 ms 6100 KB Output is correct
33 Correct 5 ms 6080 KB Output is correct
34 Correct 5 ms 6100 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 27 ms 8060 KB Output is correct
37 Correct 28 ms 8560 KB Output is correct
38 Correct 28 ms 8580 KB Output is correct
39 Correct 28 ms 8944 KB Output is correct
40 Correct 29 ms 8900 KB Output is correct
41 Correct 4 ms 6076 KB Output is correct
42 Correct 29 ms 8528 KB Output is correct
43 Correct 28 ms 8828 KB Output is correct
44 Correct 28 ms 8856 KB Output is correct
45 Correct 34 ms 8604 KB Output is correct
46 Correct 28 ms 8844 KB Output is correct
47 Correct 26 ms 8848 KB Output is correct