Submission #653996

#	Time	Username	Problem	Language	Result	Execution time	Memory
653996		Blagoj	Mutating DNA (IOI21_dna)	C++17	0 / 100	307 ms	3716 KiB

dna

#include "dna.h"
#include <bits/stdc++.h>

using namespace std;

string a, b;

void init(std::string a1, std::string b1) 
{
	a = a1;
	b = b1;
}

int get_distance(int x, int y) {

	string c = a;
	int cnt = 0;
	bool possible = true, subpossible = false;
	for (int i = x; i <= y; i++)
	{
		if (c[i] != b[i])
		{
			subpossible = false;
			for (int j = i + 1; j <= y; j++)
			{
				if (c[j] == b[i])
				{
					subpossible = true;
					swap(c[i], c[j]);
					cnt++;
					break;
				}
			}
			if (!subpossible)
			{
				possible = false;
			}
		}
	}
	if (!possible)
	{
		return -1;
	}
	return cnt;
}

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