CSES - Datatähti 2025 alku

Submission details
Task:	Robotti
Sender:	Username*
Submission time:	2024-10-28 12:32:46 +0200
Language:	C++
Status:	READY
Result:	0

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

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 2	details
#2	ACCEPTED	0.00 s	1, 2	details
#3	RUNTIME ERROR	0.00 s	1, 2	details
#4	ACCEPTED	0.00 s	1, 2	details
#5	RUNTIME ERROR	0.00 s	1, 2	details
#6	ACCEPTED	0.00 s	1, 2	details
#7	ACCEPTED	0.00 s	1, 2	details
#8	ACCEPTED	0.00 s	1, 2	details
#9	ACCEPTED	0.00 s	1, 2	details
#10	RUNTIME ERROR	0.00 s	1, 2	details
#11	ACCEPTED	0.00 s	1, 2	details
#12	RUNTIME ERROR	0.00 s	2	details
#13	ACCEPTED	0.00 s	2	details
#14	ACCEPTED	0.01 s	2	details
#15	RUNTIME ERROR	0.01 s	2	details
#16	ACCEPTED	0.00 s	2	details
#17	ACCEPTED	0.01 s	2	details
#18	RUNTIME ERROR	0.01 s	2	details
#19	ACCEPTED	0.13 s	2	details
#20	ACCEPTED	0.01 s	2	details
#21	RUNTIME ERROR	0.01 s	2	details
#22	RUNTIME ERROR	0.01 s	2	details
#23	RUNTIME ERROR	0.01 s	2	details
#24	ACCEPTED	0.01 s	2	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:60:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         int right = (robpos + 1 < offsets.size()) ? (offsets[robpos + 1] - roboff) : INT_MAX;
      |                      ~~~~~~~~~~~^~~~~~~~~~~~~~~~

Code

#include <vector>
#include <algorithm>
#include <iostream>
#include <cmath>
#include <string>
#include <limits>
#include <climits>

using namespace std;

int main() {
    int n;
    cin >> n;

    cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');

    string line;
    getline(cin, line);
    size_t robot = line.find('R');

    //cout << line << "\n";
    //cout << robot << "\n";

    vector<int> offsets;

    int pos = 0;
    int robpos = 0;

    for (char room : line) {
        if (room == '*') {
            offsets.push_back(pos - robot);
        }
        else if (room == 'R') {
            //offsets.push_back(0);
            robpos = offsets.size()-1;
        }
        pos++;
    }

    int totalscore = 0;
    int steps = 0;
    int roboff = 0;

    while (offsets.size() > 0) {
        /*cout << "\n";
        for (int off : offsets) {
            cout << off << " ";
        }
        cout << "\nstep:";*/
        /*if (offsets.size() == 1) {
            int left = offsets[robpos] - roboff;
            offsets.erase(offsets.begin() + robpos);
            robpos -= 1;
            roboff += left;
            steps += abs(left);
            totalscore++;
            break;
        }*/
        int left = offsets[robpos] - roboff;
        int right = (robpos + 1 < offsets.size()) ? (offsets[robpos + 1] - roboff) : INT_MAX;
        if (abs(left) > abs(right)) {
            //cout << " right " << left << " " << right;
            offsets.erase(offsets.begin()+robpos+1);
            roboff += right;
            steps += abs(right);
            totalscore++;
        }
        else if (abs(right) > abs(left)){
            //cout << " left " << left << " " << right;
            offsets.erase(offsets.begin()+robpos);
            robpos -= 1;
            roboff += left;
            steps += abs(left);
            totalscore++;
        }
        else {
            //cout << "same" << "\n";
            break;
        }
    }
    
    cout << steps << " " << totalscore << "\n";
    return 0;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
`1 R` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 2

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

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: RUNTIME ERROR

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

correct output
`947 9` view save

user output
(empty)

Test 6

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`886 9` view save

user output
`886 9` view save

Test 7

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`1287 400` view save

user output
`1287 400` 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: RUNTIME ERROR

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

correct output
`999 999` view save

user output
(empty)

Error:

malloc(): invalid size (unsorted)

Test 11

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`999 999` view save

user output
`999 999` view save

Test 12

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`10971 999` view save

user output
(empty)

Error:

malloc(): unsorted double linked list corrupted

Test 13

Group: 2

Verdict: ACCEPTED

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

correct output
`9999 999` view save

user output
`9999 999` view save

Test 14

Group: 2

Verdict: ACCEPTED

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

correct output
`18766 5000` view save

user output
`18766 5000` view save

Test 15

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`9999 9999` view save

user output
(empty)

Error:

malloc(): invalid next size (unsorted)

Test 16

Group: 2

Verdict: ACCEPTED

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

correct output
`9999 9999` view save

user output
`9999 9999` view save

Test 17

Group: 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

Test 18

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`299934 10000` view save

user output
(empty)

Error:

malloc(): invalid next size (unsorted)

Test 19

Group: 2

Verdict: ACCEPTED

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

correct output
`299998 100000` view save

user output
`299998 100000` 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: RUNTIME ERROR

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

correct output
`133765 3` view save

user output
(empty)

Test 22

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`199982 5000` view save

user output
(empty)

Error:

malloc(): invalid next size (unsorted)

Test 23

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`199999 199999` view save

user output
(empty)

Test 24

Group: 2

Verdict: ACCEPTED

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

correct output
`199999 199999` view save

user output
`199999 199999` 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

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