Submission #40392

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
40392	2018-01-31T12:58:30 Z	model_code	Coins (IOI17_coins)	C++11	100 / 100	13 ms	1756 KB

coins

#include "coins.h"
#include <vector>
using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
	int x = 0;
	for(int i = 0; i < 64; ++ i)
		x ^= b[i] * i;
	vector<int> flips(1);
	flips[0] = c ^ x;
	return flips;
}

int find_coin(vector<int> b) {
	int x = 0;
	for(int i = 0; i < 64; ++ i)
		x ^= b[i] * i;
	return x;
}

Compilation message

grader.cpp: In function 'void pass2()':
grader.cpp:100:7: warning: unused variable 'secret' [-Wunused-variable]
  // assert(1 == scanf("%s", secret));
       ^~~~~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	1668 KB	Output is correct
2	Correct	11 ms	1456 KB	Output is correct
3	Correct	12 ms	1456 KB	Output is correct
4	Correct	13 ms	1472 KB	Output is correct
5	Correct	11 ms	1468 KB	Output is correct
6	Correct	12 ms	1476 KB	Output is correct

Subtask #2

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	1668 KB	Output is correct
2	Correct	11 ms	1456 KB	Output is correct
3	Correct	12 ms	1456 KB	Output is correct
4	Correct	13 ms	1472 KB	Output is correct
5	Correct	11 ms	1468 KB	Output is correct
6	Correct	12 ms	1476 KB	Output is correct
7	Correct	12 ms	1464 KB	Output is correct
8	Correct	11 ms	1460 KB	Output is correct
9	Correct	12 ms	1340 KB	Output is correct
10	Correct	12 ms	1348 KB	Output is correct
11	Correct	12 ms	1456 KB	Output is correct
12	Correct	11 ms	1412 KB	Output is correct
13	Correct	11 ms	1328 KB	Output is correct

Subtask #3

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	1464 KB	Output is correct
2	Correct	12 ms	1456 KB	Output is correct
3	Correct	12 ms	1464 KB	Output is correct
4	Correct	12 ms	1468 KB	Output is correct
5	Correct	12 ms	1472 KB	Output is correct
6	Correct	12 ms	1464 KB	Output is correct
7	Correct	11 ms	1472 KB	Output is correct
8	Correct	11 ms	1472 KB	Output is correct

Subtask #4

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	1456 KB	Output is correct
2	Correct	11 ms	1520 KB	Output is correct
3	Correct	12 ms	1340 KB	Output is correct
4	Correct	12 ms	1456 KB	Output is correct
5	Correct	12 ms	1456 KB	Output is correct
6	Correct	12 ms	1484 KB	Output is correct

Subtask #5

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	1668 KB	Output is correct
2	Correct	11 ms	1456 KB	Output is correct
3	Correct	12 ms	1456 KB	Output is correct
4	Correct	13 ms	1472 KB	Output is correct
5	Correct	11 ms	1468 KB	Output is correct
6	Correct	12 ms	1476 KB	Output is correct
7	Correct	12 ms	1464 KB	Output is correct
8	Correct	11 ms	1460 KB	Output is correct
9	Correct	12 ms	1340 KB	Output is correct
10	Correct	12 ms	1348 KB	Output is correct
11	Correct	12 ms	1456 KB	Output is correct
12	Correct	11 ms	1412 KB	Output is correct
13	Correct	11 ms	1328 KB	Output is correct
14	Correct	13 ms	1336 KB	Output is correct
15	Correct	13 ms	1664 KB	Output is correct
16	Correct	12 ms	1664 KB	Output is correct
17	Correct	12 ms	1756 KB	Output is correct
18	Correct	12 ms	1532 KB	Output is correct
19	Correct	12 ms	1668 KB	Output is correct
20	Correct	12 ms	1664 KB	Output is correct
21	Correct	13 ms	1600 KB	Output is correct
22	Correct	12 ms	1536 KB	Output is correct
23	Correct	12 ms	1696 KB	Output is correct
24	Correct	12 ms	1540 KB	Output is correct
25	Correct	11 ms	1532 KB	Output is correct