Submission #1215581

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215581		szz0li	Mutating DNA (IOI21_dna)	C++20	22 / 100	1593 ms	2376 KiB

dna

#include "dna.h"
#include <bits/stdc++.h>
using namespace std;

string a, b;
int n;
void init(string aa, string bb) {
	a=aa; b=bb;
}

int get_distance(int x, int y) {
	int db1=0, db2=0, dbd=0;
	for(int i=x;i<=y;i++){
		if(a[i]=='A'){
			db1++;
		}
		if(b[i]=='A'){
			db2++;
		}
		if(a[i] != b[i]){
			dbd++;
		}
	}
	if(db1 != db2){
		return -1;
	}
	else{
		return dbd/2;
	}
}

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