oj.uz

Submission #444629

# Submission time Handle Problem Language Result Execution time Memory
444629 2021-07-14T13:11:19 Z Hydrolyzed Mutating DNA (IOI21_dna) C++17
100 / 100
 48 ms 5316 KB 
#include "dna.h"
#include<bits/stdc++.h>
using namespace std;

const int MxN = 1e5 + 10;
int ac[MxN], at[MxN], ct[MxN], ca[MxN], ta[MxN], tc[MxN];

void init(string a, string b){
	for(int i=1; i<=a.size(); ++i){
		ac[i] = ac[i-1] + (a[i-1] == 'A' && b[i-1] == 'C');
		at[i] = at[i-1] + (a[i-1] == 'A' && b[i-1] == 'T');
		ct[i] = ct[i-1] + (a[i-1] == 'C' && b[i-1] == 'T');
		ca[i] = ca[i-1] + (a[i-1] == 'C' && b[i-1] == 'A');
		ta[i] = ta[i-1] + (a[i-1] == 'T' && b[i-1] == 'A');
		tc[i] = tc[i-1] + (a[i-1] == 'T' && b[i-1] == 'C');
	}
	return ;
}

int get_distance(int l, int r){
	int AC = ac[r + 1] - ac[l];
	int AT = at[r + 1] - at[l];
	int CA = ca[r + 1] - ca[l];
	int CT = ct[r + 1] - ct[l];
	int TA = ta[r + 1] - ta[l];
	int TC = tc[r + 1] - tc[l];
	int ans = 0, nin;
	// AC
	nin = min(AC, CA);
	ans += nin;
	AC -= nin, CA -= nin;
	
	// AT
	nin = min(TA, AT);
	ans += nin;
	AT -= nin, TA -= nin;
	
	// CT
	nin = min(CT, TC);
	ans += nin;
	CT -= nin, TC -= nin;
	
	if(AT + TA + AC + CA + CT + TC == 0){
		return ans;
	}
	if(TC != 0 && CA != 0 && AT != 0){
		if(TC != CA || CA != AT){
			return -1;
		}
		else{
			return ans + 2 * TC;
		}
	}
	if(CT != 0 && TA != 0 && AC != 0){
		if(CT != AC || AC != TA){
			return -1;
		}
		else{
			return ans + 2 * CT;
		}
	}
	return -1;
}

Compilation message

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:9:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(int i=1; i<=a.size(); ++i){
      |               ~^~~~~~~~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 4868 KB Output is correct
2 Correct 38 ms 4860 KB Output is correct
3 Correct 38 ms 4696 KB Output is correct
4 Correct 39 ms 4868 KB Output is correct
5 Correct 0 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 4 ms 3288 KB Output is correct
5 Correct 4 ms 3332 KB Output is correct
6 Correct 5 ms 3404 KB Output is correct
7 Correct 4 ms 3148 KB Output is correct
8 Correct 4 ms 3404 KB Output is correct
9 Correct 3 ms 3404 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 4 ms 3288 KB Output is correct
5 Correct 4 ms 3332 KB Output is correct
6 Correct 5 ms 3404 KB Output is correct
7 Correct 4 ms 3148 KB Output is correct
8 Correct 4 ms 3404 KB Output is correct
9 Correct 3 ms 3404 KB Output is correct
10 Correct 38 ms 4860 KB Output is correct
11 Correct 38 ms 4992 KB Output is correct
12 Correct 37 ms 5008 KB Output is correct
13 Correct 39 ms 5104 KB Output is correct
14 Correct 38 ms 5232 KB Output is correct
15 Correct 37 ms 5116 KB Output is correct
16 Correct 35 ms 4972 KB Output is correct
17 Correct 37 ms 5120 KB Output is correct
18 Correct 36 ms 5256 KB Output is correct
19 Correct 36 ms 5140 KB Output is correct
20 Correct 45 ms 5112 KB Output is correct
21 Correct 38 ms 5308 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 4 ms 3288 KB Output is correct
5 Correct 4 ms 3332 KB Output is correct
6 Correct 5 ms 3404 KB Output is correct
7 Correct 4 ms 3148 KB Output is correct
8 Correct 4 ms 3404 KB Output is correct
9 Correct 3 ms 3404 KB Output is correct
10 Correct 4 ms 3148 KB Output is correct
11 Correct 4 ms 3404 KB Output is correct
12 Correct 4 ms 3128 KB Output is correct
13 Correct 4 ms 3404 KB Output is correct
14 Correct 4 ms 3384 KB Output is correct
15 Correct 4 ms 3404 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 4868 KB Output is correct
2 Correct 38 ms 4860 KB Output is correct
3 Correct 38 ms 4696 KB Output is correct
4 Correct 39 ms 4868 KB Output is correct
5 Correct 0 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 4 ms 3288 KB Output is correct
12 Correct 4 ms 3332 KB Output is correct
13 Correct 5 ms 3404 KB Output is correct
14 Correct 4 ms 3148 KB Output is correct
15 Correct 4 ms 3404 KB Output is correct
16 Correct 3 ms 3404 KB Output is correct
17 Correct 38 ms 4860 KB Output is correct
18 Correct 38 ms 4992 KB Output is correct
19 Correct 37 ms 5008 KB Output is correct
20 Correct 39 ms 5104 KB Output is correct
21 Correct 38 ms 5232 KB Output is correct
22 Correct 37 ms 5116 KB Output is correct
23 Correct 35 ms 4972 KB Output is correct
24 Correct 37 ms 5120 KB Output is correct
25 Correct 36 ms 5256 KB Output is correct
26 Correct 36 ms 5140 KB Output is correct
27 Correct 45 ms 5112 KB Output is correct
28 Correct 38 ms 5308 KB Output is correct
29 Correct 4 ms 3148 KB Output is correct
30 Correct 4 ms 3404 KB Output is correct
31 Correct 4 ms 3128 KB Output is correct
32 Correct 4 ms 3404 KB Output is correct
33 Correct 4 ms 3384 KB Output is correct
34 Correct 4 ms 3404 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 37 ms 4580 KB Output is correct
37 Correct 42 ms 4872 KB Output is correct
38 Correct 39 ms 5112 KB Output is correct
39 Correct 38 ms 5256 KB Output is correct
40 Correct 40 ms 5272 KB Output is correct
41 Correct 3 ms 3404 KB Output is correct
42 Correct 36 ms 5116 KB Output is correct
43 Correct 37 ms 5244 KB Output is correct
44 Correct 48 ms 5248 KB Output is correct
45 Correct 37 ms 5132 KB Output is correct
46 Correct 36 ms 5316 KB Output is correct
47 Correct 35 ms 5236 KB Output is correct