CSES - Datatähti 2025 alku

Submission details
Task:	Robotti
Sender:	tq
Submission time:	2024-10-28 15:39:29 +0200
Language:	C++ (C++20)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	TIME LIMIT EXCEEDED	0
#2	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	TIME LIMIT EXCEEDED	--	1, 2	details
#2	TIME LIMIT EXCEEDED	--	1, 2	details
#3	WRONG ANSWER	0.00 s	1, 2	details
#4	ACCEPTED	0.00 s	1, 2	details
#5	TIME LIMIT EXCEEDED	--	1, 2	details
#6	WRONG ANSWER	0.00 s	1, 2	details
#7	WRONG ANSWER	0.00 s	1, 2	details
#8	ACCEPTED	0.00 s	1, 2	details
#9	ACCEPTED	0.00 s	1, 2	details
#10	WRONG ANSWER	0.01 s	1, 2	details
#11	WRONG ANSWER	0.00 s	1, 2	details
#12	WRONG ANSWER	0.00 s	2	details
#13	WRONG ANSWER	0.00 s	2	details
#14	WRONG ANSWER	0.01 s	2	details
#15	WRONG ANSWER	0.01 s	2	details
#16	WRONG ANSWER	0.01 s	2	details
#17	TIME LIMIT EXCEEDED	--	2	details
#18	WRONG ANSWER	0.01 s	2	details
#19	WRONG ANSWER	0.05 s	2	details
#20	ACCEPTED	0.06 s	2	details
#21	TIME LIMIT EXCEEDED	--	2	details
#22	WRONG ANSWER	0.01 s	2	details
#23	WRONG ANSWER	0.12 s	2	details
#24	WRONG ANSWER	0.12 s	2	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:27:37: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |                         s.erase(d_u + r);
      |                                 ~~~~^~~

Code

#include <set>
#include <cstdio>
#include <iostream>

int main(void) {
	int n_r, r, c = 0, st = 0;
	std::cin >> n_r;
	std::set<int> s;
	for (int i = 0; i < n_r; i++) {
		char c = getc(stdin);
		if (c == '\n') {
			i--;
			continue;
		} else if (c == '*') {
			s.insert(i);
		} else if (c == 'R') {
			r = i;
		}
	}
	for (;;) {
		int d_u, d_l;
		if (s.lower_bound(r) == std::next(s.begin())) d_l = 1<<25;
		else d_l = r - *std::prev(s.lower_bound(r));
		if (s.lower_bound(r) == s.end()) d_u = 1<<25;
		else d_u = *s.lower_bound(r) - r;
		if (d_l > d_u) {
			s.erase(d_u + r);
			r = d_u + r;
			st += d_u;
			c++;
		} else if (d_u > d_l) {
			s.erase(-d_l + r);
			r = -d_l + r;
			st += d_l;
			c++;
		} else {
			std::cout << st << ' ' << c << std::endl;
			return 0;
		}
	}
}

Test details

Test 1

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`1 R` view save

correct output
`0 0` view save

user output
(empty)

Test 2

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`10 ...R......` view save

correct output
`0 0` view save

user output
(empty)

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

input
`10 .R...*` view save

correct output
`12 5` view save

user output
`10 4` view save

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
`10 *R****` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 5

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`1000 R................................` view save

correct output
`947 9` view save

user output
(empty)

Test 6

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 .................................` view save

correct output
`886 9` view save

user output
`768 8` view save

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 .........................` view save

correct output
`1287 400` view save

user output
`1284 399` view save

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
`1000 **********.***************...` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 9

Group: 1, 2

Verdict: ACCEPTED

input
`1000 ******************************...` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 10

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 R*****************************...` view save

correct output
`999 999` view save

user output
`-2 998` view save

Test 11

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 ******************************...` view save

correct output
`999 999` view save

user output
`998 998` view save

Test 12

Group: 2

Verdict: WRONG ANSWER

input
`10000 .......*...................*...` view save

correct output
`10971 999` view save

user output
`10969 998` view save

Test 13

Group: 2

Verdict: WRONG ANSWER

input
`10000 ...........................` view save

correct output
`9999 999` view save

user output
`9996 998` view save

Test 14

Group: 2

Verdict: WRONG ANSWER

input
`10000 ...............*.....` view save

correct output
`18766 5000` view save

user output
`18764 4999` view save

Test 15

Group: 2

Verdict: WRONG ANSWER

input
`10000 R*****************************...` view save

correct output
`9999 9999` view save

user output
`-2 9998` view save

Test 16

Group: 2

Verdict: WRONG ANSWER

input
`10000 ******************************...` view save

correct output
`9999 9999` view save

user output
`9998 9998` view save

Test 17

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 .................................` view save

correct output
`0 0` view save

user output
(empty)

Test 18

Group: 2

Verdict: WRONG ANSWER

input
`200000 .................................` view save

correct output
`299934 10000` view save

user output
`299928 9999` view save

Test 19

Group: 2

Verdict: WRONG ANSWER

input
`200000 ............*...*....` view save

correct output
`299998 100000` view save

user output
`299997 99999` view save

Test 20

Group: 2

Verdict: ACCEPTED

input
`200000 ******************************...` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 21

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 R................................` view save

correct output
`133765 3` view save

user output
(empty)

Test 22

Group: 2

Verdict: WRONG ANSWER

input
`200000 R................................` view save

correct output
`199982 5000` view save

user output
`389883 5000` view save

Test 23

Group: 2

Verdict: WRONG ANSWER

input
`200000 R*****************************...` view save

correct output
`199999 199999` view save

user output
`-2 199998` view save

Test 24

Group: 2

Verdict: WRONG ANSWER

input
`200000 ******************************...` view save

correct output
`199999 199999` view save

user output
`199998 199998` view save

Datatähti 2025 alku

Robotti

Compiler report

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

Test 23

Test 24

Tasks

Submissions (tq)