Submission #997820

#	Time	Username	Problem	Language	Result	Execution time	Memory
997820		Nakerah	Bliskost (COI23_bliskost)	C++17	28 / 100	16 ms	4892 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define PB push_back
#define sz(x) (int)x.size()
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F first
#define S second
#define PB push_back
 
// void setIO(string s) {
	// freopen((s + ".in").c_str(), "r", stdin);
	// freopen((s + ".out").c_str(), "w", stdout);
// }

void solve(){
	int n, q; cin >> n >> q;
	string a, b; cin >> a >> b;
	string x = a, y = b;
	for(int i = n-1; i > 0; i--){
		if(a[i] <= b[i]){
			int d = b[i]-a[i];
			a[i] = b[i];
			a[i-1] = char( ((a[i-1]-'a'+d)%26) + 'a');
		}else{
			int d = a[i]-b[i];
			b[i] = a[i];
			b[i-1] = char( ((b[i-1]-'a'+d)%26) + 'a');
		}
	}
	
	int best = b[0]-a[0];
	cout << (!best?"da":"ne") << '\n';
	a = x, b = y;
	best = b[0]-a[0];
	for(int i = 0; i < q; i++){
		int p; cin >> p;
		p--;
		char c; cin >> c;
		best += c-a[p];
		best %= 26;
		a[p]=c;
		cout << (!best?"da":"ne") << '\n';
	}
}
 
int main(){
	ios_base::sync_with_stdio(false), cout.tie(NULL), cin.tie(NULL);
	// setIO("");
	int testcase = 1;
	// cin >> testcase;
	for(int i = 1; i <= testcase; i++){
		// cout << "Case " << i << ": ";
		solve();
	}
} 	 		   			  	

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