Submission #443832

#	Time	Username	Problem	Language	Result	Execution time	Memory
443832		fuad27	Mutating DNA (IOI21_dna)	C++17	21 / 100	53 ms	2372 KiB

dna

#include "dna.h"
#include<bits/stdc++.h>
using namespace std;
string a, b;
void init(string A, string B) {
	a = A;
	b = B;
}
int get_distance(int x, int y) {
	string A = "", B = "";
	if(y - x == 0) {
		if(a[x] == b[x])return 0;
		return -1;
	}	
	if(y-x == 1) {
		if(a[x] == b[x] and a[y] == b[y])return 0;
		if(a[y] == b[x] and a[x] == b[y])return 1;
		return -1;
	}
	else {
		int c = 0;
		set<char> s;
		for(int i = x;i<=y;i++) {
			s.insert(a[i]);
			A.push_back(a[i]);
			B.push_back(b[i]);
			if(a[i] != b[i])c++;
		}
		sort(A.begin(), A.end());
		sort(B.begin(), B.end());
		if(A != B) {
			return -1;
		}
		if(s.size() == 1)return 0;
		if(c == 0)return 0;
		if(s.size() == 2 and c == 2)return 1;
		if(s.size() == 3 and c == 2)return 1;
		if(s.size() == 3 and c == 3)return 2;
		return 0; 
	}
}

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