Submission #1178777

#	Time	Username	Problem	Language	Result	Execution time	Memory
1178777		rayan_bd	DNA 돌연변이 (IOI21_dna)	C++20	22 / 100	1595 ms	2376 KiB

dna

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

using namespace std;

#define fi first
#define se second

int n;
string A,B;

void init(string a,string b){
	A=a,B=b;
	n=a.size();
}

int get_distance(int l,int r){
	map<char,int> a,b;
	bool same=1;
	int cnt=0;
	for(int i=l;i<=r;++i){
		++a[A[i]];
		++b[B[i]];
		same=same&&(A[i]==B[i]);
		if(A[i]!=B[i]) ++cnt;
	}
	for(auto it:a){
		if(it.se!=b[it.fi]) return -1;
	}
	if(same) return 0;
	return cnt/2;
}

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