CSES - Datatähti 2025 alku

CSES - Datatähti 2025 alku - Results

Submission details
Task:	Robotti
Sender:	Pikaksi
Submission time:	2024-10-28 20:09:13 +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	RUNTIME ERROR	0.00 s	1, 2	details
#4	WRONG ANSWER	0.00 s	1, 2	details
#5	WRONG ANSWER	0.00 s	1, 2	details
#6	RUNTIME ERROR	0.00 s	1, 2	details
#7	WRONG ANSWER	0.00 s	1, 2	details
#8	WRONG ANSWER	0.00 s	1, 2	details
#9	WRONG ANSWER	0.00 s	1, 2	details
#10	WRONG ANSWER	0.00 s	1, 2	details
#11	RUNTIME ERROR	0.00 s	1, 2	details
#12	RUNTIME ERROR	0.00 s	2	details
#13	RUNTIME ERROR	0.00 s	2	details
#14	RUNTIME ERROR	0.01 s	2	details
#15	WRONG ANSWER	0.01 s	2	details
#16	RUNTIME ERROR	0.01 s	2	details
#17	TIME LIMIT EXCEEDED	--	2	details
#18	RUNTIME ERROR	0.01 s	2	details
#19	RUNTIME ERROR	0.04 s	2	details
#20	WRONG ANSWER	0.07 s	2	details
#21	WRONG ANSWER	0.01 s	2	details
#22	WRONG ANSWER	0.01 s	2	details
#23	WRONG ANSWER	0.08 s	2	details
#24	RUNTIME ERROR	0.07 s	2	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for (int i = 0; i < input.size(); i++) {
      |                     ~~^~~~~~~~~~~~~~
input/code.cpp:27:38: warning: 'robotClosest' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |     for (int i = 0; i < robotClosest - 1; i++) {
      |                         ~~~~~~~~~~~~~^~~
input/code.cpp:108:29: warning: 'robotPlace' may be used uninitialized in this function [-Wmaybe-uninitialized]
  108 |                 moved += abs(robotPlace - *close);
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~

Code

#include <bits/stdc++.h>
 
int main()
{
    uint64_t moved = 0, coins = 0;
    int a;
    std::cin >> a;
 
    std::string input;// = "**.*......*.R*...*..";
    std::cin >> input;
 
    std::set<int> rooms;
    int robotPlace;
    int robotClosest;
    
    for (int i = 0; i < input.size(); i++) {
        if (input[i] == '*') {
            rooms.insert(i);
        }
        else if (input[i] == 'R') {
            robotPlace = i;
            robotClosest = rooms.size();
        }
    }
 
    std::set<int>::iterator close = rooms.begin();
    for (int i = 0; i < robotClosest - 1; i++) {
        close++;
    }
 
    /*for (int number : rooms) {
        std::cout << "number = " << number << "\n";
    }
    std::cout << robotPlace << "\n";
    std::cout << robotClosest << "\n";
    return 0;*/
 
    while (true) {
        std::cout << "loop\n";
        if (*close < robotPlace) {
            if (close != rooms.begin()) {
                std::cout << robotPlace << " " << *close << "\n";
                int d1 = abs(robotPlace - *close);
                close++;
                int d2 = abs(robotPlace - *close);
                close--;
                std::cout << d1 << " " << d2 << "\n";
 
                if (d2 == d1) {
                    break;
                }
                else if (d1 < d2) {
                    moved += d1;
                    coins += 1;
 
                    robotPlace = *close;
                    rooms.erase(close);
                    close++;
                }
                else {
                    moved += d2;
                    coins++;
 
                    close++;
                    robotPlace = *close;
                    rooms.erase(close);
                    close--;
                }
            }
            else {
                moved += abs(robotPlace - *close);
                coins++;
                rooms.erase(close);
                robotPlace = *close;
            }
        }
        else {
            if (close != rooms.begin()) {
                std::cout << robotPlace << " " << *close << "\n";
                int d1 = abs(robotPlace - *close);
                close--;
                int d2 = abs(robotPlace - *close);
                close++;
                std::cout << d1 << " " << d2 << "\n";
 
                if (d2 == d1) {
                    break;
                }
                else if (d1 < d2) {
                    moved += d1;
                    coins += 1;
 
                    robotPlace = *close;
                    rooms.erase(close);
                    close--;
                }
                else {
                    moved += d2;
                    coins++;
 
                    close--;
                    robotPlace = *close;
                    rooms.erase(close);
                    close++;
                }
            }
            else {
                moved += abs(robotPlace - *close);
                coins++;
                rooms.erase(close++);
                robotPlace = *close;
            }
        }
 
        if (rooms.size() == 1) {
            moved += abs(robotPlace - *close);
            coins += 1;
            break;
        }
    }
 
    std::cout << moved << " " << coins;
}

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: RUNTIME ERROR

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

correct output
`12 5` view save

user output
(empty)

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

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

correct output
`0 0` view save

user output
`loop 3 2 1 1 0 0` view save

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

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

correct output
`947 9` view save

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

Test 6

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`886 9` view save

user output
(empty)

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

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

correct output
`1287 400` view save

user output
`loop 700 698 2 3 loop 698 706 ...` view save

Test 8

Group: 1, 2

Verdict: WRONG ANSWER

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

correct output
`0 0` view save

user output
`loop 314 313 1 1 0 0` view save

Test 9

Group: 1, 2

Verdict: WRONG ANSWER

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

correct output
`0 0` view save

user output
`loop 314 313 1 1 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
`loop loop loop loop loop ...` view save

Test 11

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`999 999` view save

user output
(empty)

Error:

free(): invalid pointer

Test 12

Group: 2

Verdict: RUNTIME ERROR

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
(empty)

Test 14

Group: 2

Verdict: RUNTIME ERROR

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
`loop loop loop loop loop ...` view save

Test 16

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`9999 9999` view save

user output
(empty)

Error:

free(): invalid pointer

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: RUNTIME ERROR

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

correct output
`299934 10000` view save

user output
(empty)

Test 19

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`299998 100000` view save

user output
(empty)

Test 20

Group: 2

Verdict: WRONG ANSWER

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

correct output
`0 0` view save

user output
`loop 100000 99999 1 1 0 0` view save

Test 21

Group: 2

Verdict: WRONG ANSWER

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

correct output
`133765 3` view save

user output
`loop loop 70142 3` view save

Test 22

Group: 2

Verdict: WRONG ANSWER

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

correct output
`199982 5000` view save

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

Test 23

Group: 2

Verdict: WRONG ANSWER

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

correct output
`199999 199999` view save

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

Test 24

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`199999 199999` view save

user output
(empty)

Error:

free(): invalid pointer

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 (Pikaksi)