CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:pyry0
Submission time:2024-10-29 19:13:02 +0200
Language:C
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2details
#2ACCEPTED0.00 s1, 2details
#3ACCEPTED0.00 s1, 2details
#4ACCEPTED0.00 s1, 2details
#5ACCEPTED0.00 s1, 2details
#6ACCEPTED0.00 s1, 2details
#7--1, 2details
#8ACCEPTED0.00 s1, 2details
#9ACCEPTED0.00 s1, 2details
#10ACCEPTED0.00 s1, 2details
#11ACCEPTED0.00 s1, 2details
#12--2details
#13ACCEPTED0.00 s2details
#14--2details
#15ACCEPTED0.00 s2details
#16ACCEPTED0.00 s2details
#17ACCEPTED0.00 s2details
#18--2details
#19--2details
#20ACCEPTED0.00 s2details
#21ACCEPTED0.01 s2details
#22ACCEPTED0.00 s2details
#23ACCEPTED0.00 s2details
#24ACCEPTED0.00 s2details

Compiler report

input/code.c: In function 'main':
input/code.c:8:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     scanf("%i", &n);
      |     ^~~~~~~~~~~~~~~
input/code.c:10:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%s", buf);
      |     ^~~~~~~~~~~~~~~~

Code

#include <stdio.h>
#include <stdlib.h>

// Koodin ei tarvinnut olla hyvää ja turvallista, eihän? :D

int main(void) {
    int n;
    scanf("%i", &n);
    char *buf = malloc(n);
    scanf("%s", buf);
    int r;
    for (int i = 0;; ++i) if (buf[i] == 'R') {
        r = i;
        break;
    }
    int steps = 0;
    int coins = 0;
    while (100) {
        if (r == 0) {
            int distr = 0;
            for (int i = r; i < n; ++i) {
                if (buf[i] == '*') {
                    r += distr;
                    steps += distr;
                    ++coins;
                    buf[r] = '.';
                    distr = 0;
                }
                ++distr;
            }
            goto end;
        } else if (r == n - 1) {
            int distl = 0;
            for (int i = r; i >= 0; --i) {
                if (buf[i] == '*') {
                    r -= distl;
                    steps += distl;
                    ++coins;
                    buf[r] = '.';
                    distl = 0;
                }
                ++distl;
            }
            goto end;
        } else {
            int found = 0;
            int distr = 0;
            for (int i = r; i < n; ++i) {
                if (buf[i] == '*') {
                    ++found;
                    break;
                }
                ++distr;
            }
            int distl = 0;
            for (int i = r; i >= 0; --i) {
                if (buf[i] == '*') {
                    ++found;
                    break;
                }
                ++distl;
            }
            if (found == 0) goto end;
            if (distr < distl) {
                r += distr;
                steps += distr;
                ++coins;
                buf[r] = '.';
            } else if (distl < distr) {
                r -= distl;
                steps += distl;
                ++coins;
                buf[r] = '.';
            } else {
                goto end;
            }
        }
    }
end:
    printf("%i %i\n", steps, coins);
    free(buf);
    return 0;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
1
R

correct output
0 0

user output
0 0

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
10
...R......

correct output
0 0

user output
0 0

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
10
**.R...***

correct output
12 5

user output
12 5

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
10
***R******

correct output
0 0

user output
0 0

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
1000
R................................

correct output
947 9

user output
947 9

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
1000
.................................

correct output
886 9

user output
886 9

Test 7

Group: 1, 2

Verdict:

input
1000
.....*..*....**..**..*......*....

correct output
1287 400

user output
(empty)

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
1000
************.*****************...

correct output
0 0

user output
0 0

Test 9

Group: 1, 2

Verdict: ACCEPTED

input
1000
******************************...

correct output
0 0

user output
0 0

Test 10

Group: 1, 2

Verdict: ACCEPTED

input
1000
R*****************************...

correct output
999 999

user output
999 999

Test 11

Group: 1, 2

Verdict: ACCEPTED

input
1000
******************************...

correct output
999 999

user output
999 999

Test 12

Group: 2

Verdict:

input
10000
.......**........*...........*...

correct output
10971 999

user output
(empty)

Test 13

Group: 2

Verdict: ACCEPTED

input
10000
*..*....*......*.....*..*........

correct output
9999 999

user output
9999 999

Test 14

Group: 2

Verdict:

input
10000
*.*.*...**.*...*....**.**.**.....

correct output
18766 5000

user output
(empty)

Test 15

Group: 2

Verdict: ACCEPTED

input
10000
R*****************************...

correct output
9999 9999

user output
9999 9999

Test 16

Group: 2

Verdict: ACCEPTED

input
10000
******************************...

correct output
9999 9999

user output
9999 9999

Test 17

Group: 2

Verdict: ACCEPTED

input
200000
.................................

correct output
0 0

user output
0 0

Test 18

Group: 2

Verdict:

input
200000
.................................

correct output
299934 10000

user output
(empty)

Test 19

Group: 2

Verdict:

input
200000
**.***....**..**.....***.*..*....

correct output
299998 100000

user output
(empty)

Test 20

Group: 2

Verdict: ACCEPTED

input
200000
******************************...

correct output
0 0

user output
0 0

Test 21

Group: 2

Verdict: ACCEPTED

input
200000
R................................

correct output
133765 3

user output
133765 3

Test 22

Group: 2

Verdict: ACCEPTED

input
200000
R................................

correct output
199982 5000

user output
199982 5000

Test 23

Group: 2

Verdict: ACCEPTED

input
200000
R*****************************...

correct output
199999 199999

user output
199999 199999

Test 24

Group: 2

Verdict: ACCEPTED

input
200000
******************************...

correct output
199999 199999

user output
199999 199999