Submission #954504

#	Time	Username	Problem	Language	Result	Execution time	Memory
954504		willychan	Bliskost (COI23_bliskost)	C++17	0 / 100	0 ms	348 KiB

Main

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


string ans[2]={"ne","da"};

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int n,q;cin>>n>>q;
	string s;cin>>s;
	string b;cin>>b;
	int cnt1=0;
	int cnt2=0;
	for(auto i : s) cnt1+=i-'a';
	cnt1%=2;
	for(auto i : b) cnt2+=i-'a';
	cnt2%=2;
	cout<<ans[cnt1==cnt2]<<"\n";
	for(int i=0;i<q;i++){
		int p;cin>>p;
		p--;
		char x;cin>>x;
		cnt1-=s[p]-'a';
		cnt1+=x-'a';
		s[p]=x;
		cnt1%=2;
		if(cnt1<0) cnt1+=2;
		cout<<ans[cnt1==cnt2]<<"\n";
	}

	
	

	return 0;
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 17
• Subtask 6: 0 / 43