CSES - Datatähti 2025 alku

Submission details
Task:	Robotti
Sender:	TNT
Submission time:	2024-10-30 21:24:58 +0200
Language:	C++ (C++17)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	RUNTIME ERROR	0
#2	RUNTIME ERROR	0

Test results
test	verdict	time	group
#1	RUNTIME ERROR	0.00 s	1, 2	details
#2	RUNTIME ERROR	0.00 s	1, 2	details
#3	RUNTIME ERROR	0.00 s	1, 2	details
#4	ACCEPTED	0.00 s	1, 2	details
#5	OUTPUT LIMIT EXCEEDED	0.00 s	1, 2	details
#6	RUNTIME ERROR	0.00 s	1, 2	details
#7	RUNTIME ERROR	0.01 s	1, 2	details
#8	ACCEPTED	0.00 s	1, 2	details
#9	ACCEPTED	0.00 s	1, 2	details
#10	WRONG ANSWER	0.00 s	1, 2	details
#11	RUNTIME ERROR	0.01 s	1, 2	details
#12	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#13	RUNTIME ERROR	0.04 s	2	details
#14	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#15	WRONG ANSWER	0.00 s	2	details
#16	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#17	WRONG ANSWER	0.01 s	2	details
#18	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#19	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#20	ACCEPTED	0.01 s	2	details
#21	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#22	OUTPUT LIMIT EXCEEDED	0.00 s	2	details
#23	WRONG ANSWER	0.01 s	2	details
#24	OUTPUT LIMIT EXCEEDED	0.00 s	2	details

Compiler report

input/code.cpp: In function 'std::vector<int> CollectCoins(int, std::string, std::vector<int>)':
input/code.cpp:16:68: warning: comparison of constant '-1' with boolean expression is always false [-Wbool-compare]
   16 |         if (DistanceLeft==DistanceRight || (CoinLeft && CoinRight) == -1) {
      |                                            ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~

Code

#include <iostream>
#include <string>
#include <vector>

std::vector<int> CollectCoins(int Rooms, std::string Layout, std::vector<int> Output) {
	std::size_t CurRobot = Layout.find("R");

	// Distance to the first coin left
	std::size_t CoinLeft = Layout.find_last_of("*", CurRobot);
	std::size_t DistanceLeft = CurRobot - CoinLeft;

	// Distance to the first coin right
	std::size_t CoinRight = Layout.find_first_of("*", CurRobot);
	std::size_t DistanceRight = CoinRight - CurRobot;

	if (DistanceLeft==DistanceRight || (CoinLeft && CoinRight) == -1) {
		return Output;
	}

	Layout[CurRobot] = '.';
	Output[1]++;

	if (DistanceLeft<DistanceRight) {
		Output[0] += DistanceLeft;
		Layout[CoinLeft] = 'R';
	} else {
		Output[0] += DistanceRight;
		Layout[CoinRight] = 'R';
	}
	std::cout << Layout << "\n";

	return CollectCoins(Rooms, Layout, Output);
}

int main () {
	// Input:
	// n rooms
	// Building layout
	// 	e.g.
	// 	20
	// 	**.*......*.R*...*..
	// * = coin; . = empty; R = robot
	int Rooms;
	std::string Layout;
	std::cin >> Rooms;
	std::cin >> Layout;

	// GOAL: Find the max number of coins the robot can collect by always going to
	// the closest coin
	std::vector<int> Output = {0,0};
	Output = CollectCoins(Rooms, Layout, Output);
	int Steps = Output[0];
	int Coins = Output[1];

	std::cout << Steps << " " << Coins << "\n";
}

Test details

Test 1

Group: 1, 2

Verdict: RUNTIME ERROR

input
`1 R` view save

correct output
`0 0` view save

user output
(empty)

Error:

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create

Test 2

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`0 0` view save

user output
(empty)

Error:

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create

Test 3

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`12 5` view save

user output
(empty)

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: OUTPUT LIMIT EXCEEDED

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

correct output
`947 9` view save

user output
(empty)

Test 6

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`886 9` view save

user output
`.................................` view save

Error:

double free or corruption (out)

Test 7

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`1287 400` view save

user output
`.........................` view save

Error:

double free or corruption (out)

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
`0 0` view save

Test 11

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`999 999` view save

user output
`******************************...` view save

Error:

double free or corruption (out)

Test 12

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`10971 999` view save

user output
(empty)

Test 13

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`9999 999` view save

user output
`...........................` view save

Error:

double free or corruption (out)

Test 14

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`18766 5000` view save

user output
(empty)

Test 15

Group: 2

Verdict: WRONG ANSWER

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

correct output
`9999 9999` view save

user output
`0 0` view save

Test 16

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`9999 9999` view save

user output
(empty)

Test 17

Group: 2

Verdict: WRONG ANSWER

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

correct output
`0 0` view save

user output
`.................................` view save

Test 18

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`299934 10000` view save

user output
(empty)

Test 19

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`299998 100000` view save

user output
(empty)

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: OUTPUT LIMIT EXCEEDED

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

correct output
`133765 3` view save

user output
(empty)

Test 22

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`199982 5000` view save

user output
(empty)

Test 23

Group: 2

Verdict: WRONG ANSWER

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

correct output
`199999 199999` view save

user output
`0 0` view save

Test 24

Group: 2

Verdict: OUTPUT LIMIT EXCEEDED

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

correct output
`199999 199999` view save

user output
(empty)

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 (TNT)