Submission #1048344

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1048344	2024-08-08T06:55:40 Z	TahirAliyev	Data Transfer (IOI19_transfer)	C++17	100 / 100	62 ms	2520 KB

transfer

#include "transfer.h"
#include <bits/stdc++.h>
using namespace std;


vector<int> get_attachment(vector<int> source) {
	int x = 0;
	int n = source.size();
	for(int i = 1; i <= n; i++){
		if(source[i - 1]) x ^= i;
	}
	vector<int> v;
	int l = 0;
	if(n == 63) l = 6;
	else l = 8;
	int xx = 0;
	for(int i = 0; i < l; i++){
		v.push_back(bool(x & (1 << i)));
		xx ^= v[i];
	}
	v.push_back(xx);
	return v;
}

vector<int> retrieve(vector<int> data) {
	int n, l;
	if(data.size() == 63 + 6 + 1) n = 63, l = 6;
	else n = 255, l = 8;
	int x = 0;
	for(int i = 1; i <= n; i++){
		if(data[i - 1]) x ^= i;
	}
	int x1 = 0;
	int bitx = 0;
	for(int i = 0; i < l; i++){
		if(data[n + i]){
			x1 |= (1 << i);
			bitx ^= 1;
		}
	}
	if(bitx == data[n + l]){
		if(x != x1) data[(x ^ x1) - 1] ^= 1;
	}
	vector<int> v;
	for(int i = 0; i < n; i++) v.push_back(data[i]);
	return v;
}

Subtask #1

60.0 / 60.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	788 KB	Output is correct
2	Correct	1 ms	996 KB	Output is correct
3	Correct	1 ms	788 KB	Output is correct
4	Correct	1 ms	996 KB	Output is correct
5	Correct	1 ms	860 KB	Output is correct
6	Correct	2 ms	788 KB	Output is correct
7	Correct	1 ms	828 KB	Output is correct
8	Correct	3 ms	788 KB	Output is correct
9	Correct	1 ms	788 KB	Output is correct
10	Correct	1 ms	796 KB	Output is correct
11	Correct	1 ms	1000 KB	Output is correct
12	Correct	1 ms	796 KB	Output is correct
13	Correct	2 ms	784 KB	Output is correct
14	Correct	2 ms	796 KB	Output is correct
15	Correct	1 ms	788 KB	Output is correct
16	Correct	1 ms	1008 KB	Output is correct
17	Correct	2 ms	784 KB	Output is correct

Subtask #2

40.0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	47 ms	2508 KB	Output is correct
2	Correct	48 ms	2512 KB	Output is correct
3	Correct	51 ms	2504 KB	Output is correct
4	Correct	46 ms	2508 KB	Output is correct
5	Correct	46 ms	2504 KB	Output is correct
6	Correct	47 ms	2508 KB	Output is correct
7	Correct	46 ms	2504 KB	Output is correct
8	Correct	42 ms	2508 KB	Output is correct
9	Correct	47 ms	2504 KB	Output is correct
10	Correct	39 ms	2500 KB	Output is correct
11	Correct	43 ms	2512 KB	Output is correct
12	Correct	50 ms	2504 KB	Output is correct
13	Correct	46 ms	2512 KB	Output is correct
14	Correct	46 ms	2500 KB	Output is correct
15	Correct	50 ms	2520 KB	Output is correct
16	Correct	45 ms	2508 KB	Output is correct
17	Correct	47 ms	2504 KB	Output is correct
18	Correct	62 ms	2516 KB	Output is correct
19	Correct	46 ms	2504 KB	Output is correct