Submission #839272

#	Time	Username	Problem	Language	Result	Execution time	Memory
839272		serifefedartar	Bliskost (COI23_bliskost)	C++17	0 / 100	0 ms	212 KiB

Main

#include <bits/stdc++.h>
using namespace std;
 
#define debug(x) {cout << #x << ": "; for (auto it : x) cout << it << " ";cout << endl;}
#define fast ios::sync_with_stdio(0);cin.tie(0);
typedef long long ll;
#define f first
#define s second
#define MOD 1000000007
#define LOGN 15
#define MAXN 100005

int main() {
	fast
	int N, Q;
	cin >> N >> Q;

	string S, T;
	cin >> S >> T;
	int even = 0, odd = 0;
	for (int i = 0; i < N; i+=2)
		even += T[i] - S[i];
	for (int i = 1; i < N; i+=2)
		odd += T[i] - S[i];

	if (even == odd)
		cout << "da\n";
	else
		cout << "ne\n";

	while (Q--) {
		int plc; char ch;
		cin >> plc >> ch;
		plc--;
		if (plc % 2)
			odd += S[plc] - ch;
		else
			even += S[plc] - ch;

		if (even == odd)
			cout << "da\n";
		else
			cout << "ne\n";		
	}
}

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