CSES - Datatähti 2025 loppu

Submission details
Task:	Leikkijät
Sender:	aatukaj
Submission time:	2025-01-18 15:58:43 +0200
Language:	C++ (C++17)
Status:	READY
Result:	23

Feedback
group	verdict	score
#1	ACCEPTED	5
#2	ACCEPTED	8
#3	ACCEPTED	10
#4	WRONG ANSWER	0
#5	WRONG ANSWER	0
#6	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.04 s	1, 2, 5, 6	details
#2	ACCEPTED	0.04 s	1, 2, 3, 5, 6	details
#3	ACCEPTED	0.04 s	1, 2, 5, 6	details
#4	ACCEPTED	0.04 s	1, 2, 4, 5, 6	details
#5	ACCEPTED	0.04 s	2, 5, 6	details
#6	ACCEPTED	0.04 s	2, 3, 5, 6	details
#7	ACCEPTED	0.04 s	2, 5, 6	details
#8	ACCEPTED	0.04 s	2, 4, 5, 6	details
#9	ACCEPTED	0.04 s	5, 6	details
#10	WRONG ANSWER	0.25 s	6	details
#11	ACCEPTED	0.04 s	1, 2, 5, 6	details
#12	ACCEPTED	0.21 s	6	details
#13	ACCEPTED	0.04 s	3, 5, 6	details
#14	ACCEPTED	0.04 s	3, 5, 6	details
#15	ACCEPTED	0.04 s	4, 5, 6	details
#16	WRONG ANSWER	0.04 s	5, 6	details
#17	WRONG ANSWER	0.24 s	6	details
#18	WRONG ANSWER	0.05 s	4, 5, 6	details
#19	WRONG ANSWER	0.04 s	5, 6	details
#20	WRONG ANSWER	0.23 s	6	details
#21	WRONG ANSWER	0.24 s	6	details
#22	WRONG ANSWER	0.05 s	5, 6	details

Code

#include <bits/stdc++.h> 
#define all(v) (v).begin(), (v).end()
using namespace std;
const int maxN = 2e5+10;

int mn[1001][1001];
void ch(int &a, int x) {
	if (a==0) a=x;
}

void precalc() {
	for (int n=1; n<=3000; n++) {
		queue<int> q;
		for (int i=1; i<=n; i++) q.push(i);
		int prev = 0;
		while (!q.empty()) {
			q.push(q.front());
			q.pop();
			int cur = q.front(); q.pop();
			if (prev <=1000 && cur<=1000) {
				ch(mn[prev][cur], n);
			}
			prev = cur;
			
		}
	}
}
void solve() {
	int a, b;
	cin >> a >> b;
	if (a<=1000 && b<=1000) {
		if (mn[a][b]==0) cout << "-1\n";
		else cout << mn[a][b] << '\n';
	} else {
		if (a%2==0) {
			if (b==a+2) {
				cout << b << '\n';
				return;
			}
			if (b==1) {
				cout << a+1 << '\n';
				return;
			}
			if (b==3) {
				cout << a << '\n';
				return;
			}
		}
		cout << "-1\n";
	}
}
int main() {
	precalc();
	int tc;
	cin >> tc;
	while (tc--) solve();
}

Test details

Test 1

Group: 1, 2, 5, 6

Verdict: ACCEPTED

input
`1000 42 100 73 94 1 13 31 100 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 2

Group: 1, 2, 3, 5, 6

Verdict: ACCEPTED

input
`1000 54 3 42 44 30 1 52 3 ...` view save

correct output
`54 44 31 52 15 ...` view save

user output
`54 44 31 52 15 ...` Truncated

Test 3

Group: 1, 2, 5, 6

Verdict: ACCEPTED

input
`1000 27 25 81 65 45 43 87 23 ...` view save

correct output
`-1 -1 -1 139 -1 ...` view save

user output
`-1 -1 -1 139 -1 ...` Truncated

Test 4

Group: 1, 2, 4, 5, 6

Verdict: ACCEPTED

input
`1000 55 63 39 71 95 96 61 69 ...` view save

correct output
`65 75 -1 72 98 ...` view save

user output
`65 75 -1 72 98 ...` Truncated

Test 5

Group: 2, 5, 6

Verdict: ACCEPTED

input
`1000 222 56 871 832 207 364 919 980 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 6

Group: 2, 3, 5, 6

Verdict: ACCEPTED

input
`1000 892 3 332 334 820 822 42 1 ...` view save

correct output
`892 334 822 43 108 ...` view save

user output
`892 334 822 43 108 ...` Truncated

Test 7

Group: 2, 5, 6

Verdict: ACCEPTED

input
`1000 77 93 319 575 509 381 675 707 ...` view save

correct output
`98 607 574 713 919 ...` view save

user output
`98 607 574 713 919 ...` Truncated

Test 8

Group: 2, 4, 5, 6

Verdict: ACCEPTED

input
`1000 969 985 233 489 403 659 427 555 ...` view save

correct output
`992 500 777 565 261 ...` view save

user output
`992 500 777 565 261 ...` Truncated

Test 9

Group: 5, 6

Verdict: ACCEPTED

input
`1000 10375 364462 501875 499131 495774 7544 133830 316225 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 10

Group: 6

Verdict: WRONG ANSWER

input
`100000 771321 298762 20752 494590 633649 443015 748804 831912 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 11

Group: 1, 2, 5, 6

Verdict: ACCEPTED

input
`900 1 1 1 2 1 3 1 4 ...` view save

correct output
`-1 -1 3 -1 5 ...` view save

user output
`-1 -1 3 -1 5 ...` Truncated

Test 12

Group: 6

Verdict: ACCEPTED

input
`90000 1 1 1 2 1 3 1 4 ...` view save

correct output
`-1 -1 3 -1 5 ...` view save

user output
`-1 -1 3 -1 5 ...` Truncated

Test 13

Group: 3, 5, 6

Verdict: ACCEPTED

input
`1000 237542 859435 965750 179154 972602 758585 453450 751662 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 14

Group: 3, 5, 6

Verdict: ACCEPTED

input
`1000 773164 1 870426 1 309736 309738 957602 957604 ...` view save

correct output
`773165 870427 309738 957604 513118 ...` view save

user output
`773165 870427 309738 957604 513118 ...` Truncated

Test 15

Group: 4, 5, 6

Verdict: ACCEPTED

input
`1000 178896 591355 54364 110987 361539 818612 275401 926643 ...` view save

correct output
`-1 -1 -1 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 16

Group: 5, 6

Verdict: WRONG ANSWER

input
`1000 704481 704465 696919 688727 941011 949203 171023 171025 ...` view save

correct output
`-1 -1 951785 -1 -1 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 17

Group: 6

Verdict: WRONG ANSWER

input
`100000 67901 133437 637521 637537 742567 742569 864043 864044 ...` view save

correct output
`148638 637540 -1 -1 652457 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 18

Group: 4, 5, 6

Verdict: WRONG ANSWER

input
`1000 650375 650377 181841 443985 750137 750138 256969 322505 ...` view save

correct output
`-1 484136 -1 341476 850152 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 19

Group: 5, 6

Verdict: WRONG ANSWER

input
`1000 1 3 1 5 1 9 1 17 ...` view save

correct output
`3 5 10 20 40 ...` view save

user output
`3 5 10 20 40 ...` Truncated

Test 20

Group: 6

Verdict: WRONG ANSWER

input
`100000 1 3 1 5 1 9 1 17 ...` view save

correct output
`3 5 10 20 40 ...` view save

user output
`3 5 10 20 40 ...` Truncated

Test 21

Group: 6

Verdict: WRONG ANSWER

input
`100000 999999 1 999999 3 999999 5 999999 7 ...` view save

correct output
`1000002 1000005 1000000 1000011 1000001 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Test 22

Group: 5, 6

Verdict: WRONG ANSWER

input
`1000 999999 1 999999 3 999999 5 999999 7 ...` view save

correct output
`1000002 1000005 1000000 1000011 1000001 ...` view save

user output
`-1 -1 -1 -1 -1 ...` Truncated

Datatähti 2025 loppu

Leikkijät

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Tasks

Submissions (aatukaj)