CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:Elmortti
Submission time:2024-10-29 23:56:24 +0200
Language:C++ (C++20)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.00 s1, 2details
#20.00 s1, 2details
#30.00 s1, 2details
#40.00 s1, 2details
#50.00 s1, 2details
#60.00 s1, 2details
#70.00 s1, 2details
#80.00 s1, 2details
#90.00 s1, 2details
#100.00 s1, 2details
#110.01 s1, 2details
#120.00 s2details
#130.00 s2details
#140.00 s2details
#150.00 s2details
#160.00 s2details
#170.01 s2details
#180.01 s2details
#190.01 s2details
#200.01 s2details
#210.01 s2details
#220.01 s2details
#230.01 s2details
#240.01 s2details

Code

#include <climits>
#include <iostream>
#include <vector>

int main() {
	// Initialize variables
	int n;
	std::string m;
	std::vector<int> coins;
	std::vector<int> positions;
	int R = 0;
	int collected = 0;
	int steps = 0;
	int index = 0;
	char c;

	// Take input
	std::cin >> n >> m;

	// Get locations of coins and robot
	for (int i = 0; i < n; i++) {
		c = m.at(i);
		if (c == '*') {
			coins.push_back(i);
		} else if (c == 'R') {
			R = i;
		}
	}

	while (index != INT_MAX) {
		if (coins.empty() == true) { return INT_MAX; }
		else if (coins.size() <= 1) { return 0; }

		int pos1 = 0;
		int pos2 = 0;

		for (unsigned int i = 0; i < (coins.size() - 1); i++) {
			pos1 = i;
			pos2 = i + 1;
			if (coins.at(pos1) < R && R < coins.at(pos2)) {
				break;
			}
		}

		if (coins.at(pos1) > R && coins.at(pos2) > R) {
			return 0;
		} else if (coins.at(pos1) < R && coins.at(pos2) < R) {
			return coins.back();
		}

		int val1 = abs(R - coins[pos1]);
		int val2 = abs(R - coins[pos2]);

		if (val1 == val2) {
			return INT_MAX;
		} else if (val1 < val2) {
			return pos1;
		} else {
			return pos2;
		}

		return INT_MAX;

		if (index != INT_MAX) {
			collected++;
			steps = steps + abs(R - coins.at(index));
			R = coins.at(index);
			coins.erase(coins.begin() + index);
		}
	}

	std::cout << steps << " " << collected;

	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:

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

correct output
0 0

user output
(empty)

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
(empty)

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
(empty)

Test 8

Group: 1, 2

Verdict:

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

correct output
0 0

user output
(empty)

Test 9

Group: 1, 2

Verdict:

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

correct output
0 0

user output
(empty)

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
(empty)

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
(empty)

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
(empty)

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
(empty)

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:

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

correct output
0 0

user output
(empty)

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)