CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:alberthenriksson
Submission time:2024-10-30 15:05:26 +0200
Language:C++ (C++11)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.00 s1, 2details
#20.00 s1, 2details
#30.00 s1, 2details
#4ACCEPTED0.00 s1, 2details
#50.00 s1, 2details
#60.00 s1, 2details
#70.00 s1, 2details
#8ACCEPTED0.00 s1, 2details
#9ACCEPTED0.01 s1, 2details
#100.00 s1, 2details
#110.00 s1, 2details
#120.00 s2details
#130.00 s2details
#140.01 s2details
#150.01 s2details
#160.01 s2details
#170.01 s2details
#180.01 s2details
#190.04 s2details
#20ACCEPTED0.07 s2details
#210.01 s2details
#220.01 s2details
#230.07 s2details
#240.07 s2details

Code

#include <iostream>
#include <set>

using namespace std;

int main() {
	set<int> s;
	int steps = 0;
	int coins = 0;
	int n;
	int o;
	int v;
	int pos;
	string h;
	cin >> n;
	cin >> h;
	s.insert(0);
	s.insert(1e6);
	for (int i = 0; i <= n - 1; i++) {
		if (h[i] == '*') {
			s.insert(i + 1);
		}
		if (h[i] == 'R') {
			pos = i + 1;
			s.insert(i + 1);
		}
	}
	auto it = s.find(pos);
	while (s.size() > 2) {
		it++;
		if (*it == 1e6) {
			auto left = s.begin();
			left++;
			steps = steps + pos - *left;
			coins = coins + s.size() - 2;
			break;
		}
		o = *it;
		it--;
		it--;
		if (*it == 0) {
			auto right = s.end();
			right--;
			right--;
			steps = steps + *right - pos;
			coins = coins + s.size() - 2;
			break;
		}
		v = *it;
		s.erase(pos);
		if (o - pos == pos - v) {
			break;
		}
		if (o - pos > pos - v) {
			coins++;
			steps = steps + pos - v;
			pos = v;
		}
		else {
			it++;
			coins++;
			steps = steps + o - pos;
			pos = o;
		}
	}
	cout << steps << " " << coins;

}

Test details

Test 1

Group: 1, 2

Verdict:

input
1
R

correct output
0 0

user output
0 1

Test 2

Group: 1, 2

Verdict:

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

correct output
0 0

user output
0 1

Test 3

Group: 1, 2

Verdict:

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

correct output
12 5

user output
12 6

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
947 10

Test 6

Group: 1, 2

Verdict:

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

correct output
886 9

user output
886 10

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
1287 401

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
999 1000

Test 11

Group: 1, 2

Verdict:

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

correct output
999 999

user output
999 1000

Test 12

Group: 2

Verdict:

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

correct output
10971 999

user output
10971 1000

Test 13

Group: 2

Verdict:

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

correct output
9999 999

user output
9999 1000

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
18766 5001

Test 15

Group: 2

Verdict:

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

correct output
9999 9999

user output
9999 10000

Test 16

Group: 2

Verdict:

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

correct output
9999 9999

user output
9999 10000

Test 17

Group: 2

Verdict:

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

correct output
0 0

user output
0 1

Test 18

Group: 2

Verdict:

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

correct output
299934 10000

user output
299934 10001

Test 19

Group: 2

Verdict:

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

correct output
299998 100000

user output
299998 100001

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
133765 4

Test 22

Group: 2

Verdict:

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

correct output
199982 5000

user output
199982 5001

Test 23

Group: 2

Verdict:

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

correct output
199999 199999

user output
199999 200000

Test 24

Group: 2

Verdict:

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

correct output
199999 199999

user output
199999 200000