Submission #1189623

#	Time	Username	Problem	Language	Result	Execution time	Memory
1189623		yoruonivamp	Mutating DNA (IOI21_dna)	C++20	0 / 100	21 ms	2368 KiB

dna

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

int dis[100005];
string A, B;

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

int get_distance(int x, int y){
    int c1[26]{},c2[26]{};
    for(int i = x; i <= y; i++) c1[A[i]-'A']++;
    for(int i = x; i <= y; i++) c2[B[i]-'A']++;
    for(int i = 0; i < 26; i++) if(c1[i]!=c2[i]) return -1;
    string a = A.substr(x,y-x+1), b = B.substr(x,y-x+1);
    int cnt = 0;
    for(int i = 0; i < a.length(); i++){
        if(a[i]==b[i]) continue;
        for(int j = b.length()-1; j >= i+1; j--){
            if(a[i]==b[j]){
                cnt++;
                swap(b[i],b[j]);
                break;
            }
        }
    }return cnt;
}

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