oj.uz

Submission #1026456

# Submission time Handle Problem Language Result Execution time Memory
1026456 2024-07-18T06:17:49 Z vjudge1 Bliskost (COI23_bliskost) C++17
0 / 100
 0 ms 600 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

void f(){
	#ifndef ONLINE_JUDGE
	freopen("in.txt", "r", stdin);
	freopen("out.txt", "w", stdout);
	#endif
}


signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);

	//f();

	int n, q; cin >>n >> q;

	vector<int> a(n);
	int sb=0, sa=0;
	string s, t; cin >> s>> t;
	for(int i=0; i<n; i++){
		if((s[i]-'a')%2) sa++, a[i]=1;
		if((t[i]-'a')%2) sb++;
	}


	if(sa%2!=sb%2) cout<<"ne"<<"\n";
	else cout<<"da"<<"\n";

	while(q--){
		int p; cin >> p; p--;
		char x; cin >> x; x--;
		x-='a'; 
		if(x%2!=a[p]){
			sa++;
			a[p]^=1;
		} 

		if(sa%2!=sb%2) cout<<"ne"<<"\n";
		else cout<<"da"<<"\n";
	}

}

Compilation message

Main.cpp: In function 'void f()':
Main.cpp:8:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  freopen("in.txt", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:9:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  freopen("out.txt", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -