Submission #1142157

#	Time	Username	Problem	Language	Result	Execution time	Memory
1142157		redars	Mutating DNA (IOI21_dna)	C++20	43 / 100	1596 ms	2376 KiB

dna

#include "dna.h"
#include<bits/stdc++.h>
using namespace std;
string s1, s2;
void init(std::string a, std::string b) {
	s1 = a;s2 = b;
}
int get_distance(int x, int y) {
	long long count = 0;
	long long counta1 = 0;
	long long countt1 = 0;
	long long countc1 = 0;
	long long counta2 = 0;
	long long countt2 = 0;
	long long countc2 = 0;
	for(int i=x;i<=y;i++){
	    if(s1[i] == 'A') counta1++;
	    if(s1[i] == 'T') countt1++;
	    if(s1[i] == 'C') countc1++;
	    if(s2[i] == 'A') counta2++;
	    if(s2[i] == 'T') countt2++;
	    if(s2[i] == 'C') countc2++;
	    if(s1[i] != s2[i]){
		 	count++;
		}
	}
	if(counta1 != counta2 || countt1 != countt2 || countc1 != countc2){
		return -1;
	}
	else{
		return (count+1)/2;
	}
	return 0;
}

• Subtask 1: 21 / 21
• Subtask 2: 22 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16