Submission #497217

#	Time	Username	Problem	Language	Result	Execution time	Memory
497217		Maqsut_03	Mutating DNA (IOI21_dna)	C++17	0 / 100	786 ms	3088 KiB

dna

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

string a, b, a1, b1;
int n;
int arr[26];

void init(string a0, string b0) {
    a = a0;
    b = b0;
    a1 = a;
    b1 = b;
    n = a.length();
}

int get_distance(int x, int y) {
    int ans = 0;
    a = a1;
    b = b1;
    memset(arr, 0, sizeof(arr));

    for (int i = x; i <= y; i++)
            arr[a[i]]++, arr[b[i]]--;

    for (int i = 0; i < 26; i++)
        if (arr[i] != 0) return -1;
    a = a.substr(x, y);
    b = b.substr(x, y);
//    cout << a << " " << b << "\n";
    for (int i = 0; i <= y - x; i++)
    for (int j = i; j <= y - x; j++){
        if (a[j] == b[i] && i != j) {
                ans ++;
                swap(a[i], a[j]);
        }
    }
    return ans;
}

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:24:21: warning: array subscript has type 'char' [-Wchar-subscripts]
   24 |             arr[a[i]]++, arr[b[i]]--;
      |                     ^
dna.cpp:24:34: warning: array subscript has type 'char' [-Wchar-subscripts]
   24 |             arr[a[i]]++, arr[b[i]]--;
      |                                  ^

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