CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:-=SharpS=-
Submission time:2024-10-28 15:37:51 +0200
Language:C
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#1--1, 2details
#2--1, 2details
#3--1, 2details
#4ACCEPTED0.00 s1, 2details
#5--1, 2details
#60.00 s1, 2details
#70.00 s1, 2details
#8ACCEPTED0.00 s1, 2details
#9ACCEPTED0.00 s1, 2details
#10--1, 2details
#110.00 s1, 2details
#12--2details
#130.01 s2details
#140.02 s2details
#15--2details
#160.05 s2details
#17--2details
#18--2details
#19--2details
#20ACCEPTED0.37 s2details
#21--2details
#22--2details
#23--2details
#24--2details

Compiler report

input/code.c: In function 'main':
input/code.c:56:12: warning: initialization of 'char' from 'char *' makes integer from pointer without a cast [-Wint-conversion]
   56 |   char c = fgets(jou, 1024, stdin);
      |            ^~~~~
input/code.c:60:12: warning: initialization of 'char' from 'char *' makes integer from pointer without a cast [-Wint-conversion]
   60 |   char d = fgets(room_layout, roomc+1, stdin);
      |            ^~~~~
input/code.c:60:8: warning: unused variable 'd' [-Wunused-variable]
   60 |   char d = fgets(room_layout, roomc+1, stdin);
      |        ^
input/code.c:56:8: warning: unused variable 'c' [-Wunused-variable]
   56 |   char c = fgets(jou, 1024, stdin);
      |        ^
input/code.c:62:8: warning: 'ri' is used uninitialized [-Wuninitialized]
   62 |   ri = get_ri(room_layout, ri);
      |        ^~~~~~~~~~~~~~~~~~~~~~~

Code

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
void set_ptrs(const char* rooms, long int* ns,long int* fs, long int ri, long int* distl, long int* distf) {
*ns = -1;
*fs = -1;
for (long int i = ri; i >= 0; i--) {
if (rooms[i] == '*') {
*ns = i;
break;
}
}
for (long int i = ri; i <= strlen(rooms); i++) {
if (rooms[i] == '*') {
*fs = i;
break;
}
}
if (*ns != -1 && *fs != -1) {
*distl = ri - *ns;
*distf = *fs - ri;
}
else if (*ns == -1) {
*distl = strlen(rooms)+1;
} else {
*distf = strlen(rooms)+1;
}
}
int get_ri(const char* rooms,long int ri) {
for (int i = 0; i <= strlen(rooms); i++) {
if (rooms[i] == 'R') {
return i;
}
}
return 0;
}
int main(int argc, char* argv[]) {
long int roomc;
char* room_layout;
long int ns;
long int fs;
long int ri;
char jou[1024];
int coin_count = 0;
int step_count = 0;
long int distl;
long int distf;
char c = fgets(jou, 1024, stdin);
roomc = atoi(jou);
room_layout = malloc(roomc+1);
char d = fgets(room_layout, roomc+1, stdin);
ri = get_ri(room_layout, ri);
loop:
set_ptrs(room_layout, &ns, &fs, ri, &distl, &distf);
if (distl < distf) {
room_layout[ri] = '.';
room_layout[ns] = 'R';
ri = ns;
coin_count++;
step_count = step_count + distl;
}
else if (distf < distl){
room_layout[ri] = '.';
room_layout[fs] = 'R';
ri = fs;
coin_count++;
step_count = step_count + distf;
} else {
goto halt;
}
goto loop;
halt:
printf("%i %i\n", step_count, coin_count);
return 0;
}

Test details

Test 1

Group: 1, 2

Verdict:

input
1
R

correct output
0 0

user output
(empty)

Test 2

Group: 1, 2

Verdict:

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

correct output
0 0

user output
(empty)

Test 3

Group: 1, 2

Verdict:

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

correct output
12 5

user output
(empty)

Test 4

Group: 1, 2

Verdict: ACCEPTED

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

correct output
0 0

user output
0 0

Test 5

Group: 1, 2

Verdict:

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

correct output
947 9

user output
(empty)

Test 6

Group: 1, 2

Verdict:

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

correct output
886 9

user output
0 9

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
84277 400

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:

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

correct output
999 999

user output
(empty)

Test 11

Group: 1, 2

Verdict:

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

correct output
999 999

user output
0 999

Test 12

Group: 2

Verdict:

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

correct output
10971 999

user output
(empty)

Test 13

Group: 2

Verdict:

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

correct output
9999 999

user output
0 999

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
5772629 5000

Test 15

Group: 2

Verdict:

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

correct output
9999 9999

user output
(empty)

Test 16

Group: 2

Verdict:

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

correct output
9999 9999

user output
0 9999

Test 17

Group: 2

Verdict:

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

correct output
0 0

user output
(empty)

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:

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

correct output
133765 3

user output
(empty)

Test 22

Group: 2

Verdict:

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

correct output
199982 5000

user output
(empty)

Test 23

Group: 2

Verdict:

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

correct output
199999 199999

user output
(empty)

Test 24

Group: 2

Verdict:

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

correct output
199999 199999

user output
(empty)