Submission #997791

#	Time	Username	Problem	Language	Result	Execution time	Memory
997791		Nakerah	Bliskost (COI23_bliskost)	C++17	28 / 100	101 ms	3892 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 t = a;
	for(int i = n-1; i > 0; i--){
		while(a[i] != b[i]){
			a[i] = char(((a[i]-'a'+1)%26)+'a');
			a[i-1] = char(((a[i-1]-'a'+1)%26)+'a');
		}
	}
	cout << (a==b?"da":"ne") << '\n';
	while(q--){
		a = t;
		int p; cin >> p;
		p--;
		char c; cin >> c;
		a[p] = c;
		for(int i = n-1; i > 0; i--){
			while(a[i] != b[i]){
				a[i] = char(((a[i]-'a'+1)%26)+'a');
				a[i-1] = char(((a[i-1]-'a'+1)%26)+'a');
			}
		}
		cout << (a==b?"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();
	}
} 	 		   			  	

Compilation message (stderr)

Main.cpp: In function 'void setIO(std::string)':
Main.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen((s + ".in").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:14:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  freopen((s + ".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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