oj.uz

Submission #844569

# Submission time Handle Problem Language Result Execution time Memory
844569 2023-09-05T14:11:56 Z vjudge1 Klasika (COCI20_klasika) C++17
0 / 110
 2 ms 856 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define all(c) (c).begin(), (c).end()

const int N = 2e3 + 5;
vector<int> adj[N],xr(N);
int res;

void dfs(int node,int val){
	res = max(res,val ^ xr[node]);
	for(int go : adj[node]){
		dfs(go,val);
	}
}

void solve(){	

	int q;
	cin >> q;

	int cnt = 1;
	for(int i = 0; i < q; i++){
		string s; cin >> s;
		int x,y; cin >> x >> y;
		if(s[0] == 'A'){
			adj[x].push_back(++cnt);
			xr[cnt] = xr[x] ^ y;
		}
		else{
			res = 0;
			dfs(y,xr[x]);
			cout << res << endl;
		}
	}

}

signed main(){

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

	ios_base::sync_with_stdio(0);
	cin.tie(0);

	int t = 1;
//	cin >> t;

	while(t--){
		solve();
	}

	return 0;
}

Compilation message

klasika.cpp: In function 'int main()':
klasika.cpp:43:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |   freopen("in.txt","r",stdin); freopen("out.txt","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~
klasika.cpp:43:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |   freopen("in.txt","r",stdin); freopen("out.txt","w",stdout);
      |                                ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 856 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 856 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 856 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 856 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -