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Submission #444338

# Submission time Handle Problem Language Result Execution time Memory
444338 2021-07-13T16:40:12 Z computerbox Mutating DNA (IOI21_dna) C++17
100 / 100
 53 ms 6028 KB 
#include "dna.h"
#include <bits/stdc++.h>

using namespace std;

int preff[100010][3][3];
int num[27];


void init(string a, string b) {
  num['A'-'A']=0;
  num['T'-'A']=1;
  num['C'-'A']=2;
  for(int i = 0; i < (int)a.size(); i++)
  {
    int x = num[a[i] - 'A'];	
    int y = num[b[i] - 'A'];
    preff[i][x][y]++;   
    if(i != 0)
    {
	  for(int x = 0; x < 3; x++)
	  {
		for(int y = 0; y < 3; y++)
		{
		  preff[i][x][y] += preff[i - 1][x][y];	
	    }  
	  }	
    }
  } 	
}

int get_distance(int x, int y) {
	int cnt[3][3];
	memset(cnt,0,sizeof(cnt));
	if(x == 0)
	{
	  for(int i = 0; i < 3; i++)
	  {
		for(int j = 0; j < 3; j++)
		{
		  cnt[i][j] += preff[y][i][j];	
	    }  
	  } 	
    }
    else
    {
	  for(int i = 0; i < 3; i++)
	  {
		for(int j = 0; j < 3; j++)
		{
		  cnt[i][j] += (preff[y][i][j] - preff[x - 1][i][j]);	
	    }  
	  } 	
    }
    
    int ans=0;
    for(int i = 0; i < 3; i++)
    {
	  for(int j = 0; j < 3; j++)
	  {
		if(i == j)continue;
		int cycle_2 = min(cnt[i][j],cnt[j][i]); 
		ans += cycle_2;
		cnt[i][j] -= cycle_2;
		cnt[j][i] -= cycle_2; 
	  }	
    }
    
    for(int i = 0; i < 3; i++)
    {
	  for(int j = 0; j < 3; j++)
	  {
		for(int k = 0; k < 3; k++)
		{
		  if(i == j || j == k || k == i)continue;
		  int cycle_3 = min(cnt[i][j],min(cnt[j][k],cnt[k][i]));
		  ans += cycle_3 * 2;	
		  cnt[i][j] -= cycle_3;
		  cnt[j][k] -= cycle_3;
		  cnt[k][i] -= cycle_3;
	    }  
	  }	
    }
    for(int i = 0; i < 3;i++)
    {
	  for(int j = 0; j < 3;j++)
	  {
		if(i == j)continue;
		if(cnt[i][j] > 0)return -1;  
	  } 	
    }   
	return ans;
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 5628 KB Output is correct
2 Correct 45 ms 5624 KB Output is correct
3 Correct 45 ms 5352 KB Output is correct
4 Correct 47 ms 5592 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 4 ms 4300 KB Output is correct
5 Correct 4 ms 4336 KB Output is correct
6 Correct 4 ms 4300 KB Output is correct
7 Correct 4 ms 4044 KB Output is correct
8 Correct 4 ms 4300 KB Output is correct
9 Correct 4 ms 4300 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 4 ms 4300 KB Output is correct
5 Correct 4 ms 4336 KB Output is correct
6 Correct 4 ms 4300 KB Output is correct
7 Correct 4 ms 4044 KB Output is correct
8 Correct 4 ms 4300 KB Output is correct
9 Correct 4 ms 4300 KB Output is correct
10 Correct 46 ms 5640 KB Output is correct
11 Correct 46 ms 5624 KB Output is correct
12 Correct 48 ms 5744 KB Output is correct
13 Correct 53 ms 5860 KB Output is correct
14 Correct 47 ms 6028 KB Output is correct
15 Correct 46 ms 5884 KB Output is correct
16 Correct 47 ms 5748 KB Output is correct
17 Correct 45 ms 5840 KB Output is correct
18 Correct 48 ms 6012 KB Output is correct
19 Correct 43 ms 5740 KB Output is correct
20 Correct 47 ms 5900 KB Output is correct
21 Correct 45 ms 6012 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 4 ms 4300 KB Output is correct
5 Correct 4 ms 4336 KB Output is correct
6 Correct 4 ms 4300 KB Output is correct
7 Correct 4 ms 4044 KB Output is correct
8 Correct 4 ms 4300 KB Output is correct
9 Correct 4 ms 4300 KB Output is correct
10 Correct 4 ms 4044 KB Output is correct
11 Correct 4 ms 4300 KB Output is correct
12 Correct 4 ms 4044 KB Output is correct
13 Correct 4 ms 4300 KB Output is correct
14 Correct 4 ms 4300 KB Output is correct
15 Correct 6 ms 4300 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 5628 KB Output is correct
2 Correct 45 ms 5624 KB Output is correct
3 Correct 45 ms 5352 KB Output is correct
4 Correct 47 ms 5592 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 4 ms 4300 KB Output is correct
12 Correct 4 ms 4336 KB Output is correct
13 Correct 4 ms 4300 KB Output is correct
14 Correct 4 ms 4044 KB Output is correct
15 Correct 4 ms 4300 KB Output is correct
16 Correct 4 ms 4300 KB Output is correct
17 Correct 46 ms 5640 KB Output is correct
18 Correct 46 ms 5624 KB Output is correct
19 Correct 48 ms 5744 KB Output is correct
20 Correct 53 ms 5860 KB Output is correct
21 Correct 47 ms 6028 KB Output is correct
22 Correct 46 ms 5884 KB Output is correct
23 Correct 47 ms 5748 KB Output is correct
24 Correct 45 ms 5840 KB Output is correct
25 Correct 48 ms 6012 KB Output is correct
26 Correct 43 ms 5740 KB Output is correct
27 Correct 47 ms 5900 KB Output is correct
28 Correct 45 ms 6012 KB Output is correct
29 Correct 4 ms 4044 KB Output is correct
30 Correct 4 ms 4300 KB Output is correct
31 Correct 4 ms 4044 KB Output is correct
32 Correct 4 ms 4300 KB Output is correct
33 Correct 4 ms 4300 KB Output is correct
34 Correct 6 ms 4300 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 45 ms 5360 KB Output is correct
37 Correct 46 ms 5628 KB Output is correct
38 Correct 46 ms 5748 KB Output is correct
39 Correct 50 ms 6024 KB Output is correct
40 Correct 46 ms 6028 KB Output is correct
41 Correct 4 ms 4300 KB Output is correct
42 Correct 44 ms 5776 KB Output is correct
43 Correct 45 ms 6028 KB Output is correct
44 Correct 45 ms 6020 KB Output is correct
45 Correct 43 ms 5748 KB Output is correct
46 Correct 53 ms 6012 KB Output is correct
47 Correct 43 ms 6008 KB Output is correct