Submission #499693

#	Time	Username	Problem	Language	Result	Execution time	Memory
499693		sazid_alam	Mutating DNA (IOI21_dna)	C++17	43 / 100	1544 ms	2720 KiB

dna

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

string a, b;

void init(string u, string v) {
    a = u;
    b = v;
}

int get_distance(int x, int y) {

    int p = 0, A[2] = {}, C[2] = {}, T[2] = {};
    for(int i = x; i <= y; i++){
        if(a[i] != b[i]) p++;
        if(a[i] == 'A') A[0]++;
        if(b[i] == 'A') A[1]++;
        if(a[i] == 'C') C[0]++;
        if(b[i] == 'C') C[1]++;
        if(a[i] == 'T') T[0]++;
        if(b[i] == 'T') T[1]++;
    }

    if(A[0] != A[1] || C[0] != C[1] || T[0] != T[1]) return -1;

    if(p % 2) return p / 2 + 1;
    else return p / 2;
	return 0;
}

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