Submission #1008025

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008025		nisanduu	Mutating DNA (IOI21_dna)	C++17	43 / 100	1509 ms	10576 KiB

dna

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

string st1,st2;

void init(string a,string b){
    st1=a;
    st2=b;
}
map<int,map<int,int>> mp;
int get_distance(int x,int y){
    if(mp[x][y]){
        return mp[x][y];
    }
    multiset<char> s1,s2;
    int c = 0;
    for(ll i=x;i<=y;i++){
        s1.insert(st1[i]);
        s2.insert(st2[i]);
        if(st1[i]!=st2[i]) c++;
    }
    if(s1!=s2){
        return -1;
    }
    if(s1.size()==1) return 0;
    if(s1.size()==2){
        if(st1[x]==st2[x]) return 0;
        return 1;
    }
    int ans = (c+1)/2;
    mp[x][y]=ans;
    return ans;
    
}


// int main()
// {
//     init("ATACAT", "ACTATA");
//     cout<<get_distance(3, 5)<<endl;
    
//     return 0;
// }

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