CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:SillyBilly
Submission time:2024-11-01 15:19:36 +0200
Language:C++ (C++20)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2details
#2ACCEPTED0.00 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
#110.00 s1, 2details
#120.00 s2details
#130.00 s2details
#140.00 s2details
#150.00 s2details
#160.00 s2details
#17ACCEPTED0.01 s2details
#180.01 s2details
#190.01 s2details
#200.01 s2details
#210.01 s2details
#220.01 s2details
#230.01 s2details
#240.01 s2details

Code

#include <iostream>
#include <deque>
#include <string>
#include <cmath>

int main() {
    int n, steps = 0, coins = 0;
    std::string rooms;
    std::cin >> n >> rooms;

    int robotPos = rooms.find('R');
    
    std::deque<int>coinloc;
    for (int i = 0; i < n; ++i) {
        if (rooms[i] == '*') {
            coinloc.push_back(i);
        }
    }

    while (!coinloc.empty()) {
        int Left = -1, Right = -1;

        if(!coinloc.empty()&& coinloc.front()<robotPos){
            Left = coinloc.front();
        }
        if(coinloc.empty()&&coinloc.back()>robotPos){
            Right = coinloc.back();
        }

        if (Left == -1 && Right == -1){
            break;
        }
        else if (Left == -1){
            steps+=std::abs(robotPos - Right);
            robotPos= Right;
            coinloc.pop_back();
        }
        else if (Right == -1){
            steps += std::abs(robotPos-Left);
            robotPos = Left;
            coinloc.pop_front();
        }
        else{
            int diLeft = std::abs(robotPos-Right), diright = std::abs(robotPos-Right);
            if (diLeft < diright){
                steps += diLeft;
                robotPos=Left;
                coinloc.pop_front();
            }
            else if (diright<diLeft){
                steps+=diright;
                robotPos=Right;
                coinloc.pop_back();
            }
        }
        coins++;
    }
    std::cout<< steps<<" "<<coins<<std::endl;
}

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:

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

correct output
12 5

user output
3 1

Test 4

Group: 1, 2

Verdict:

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

correct output
0 0

user output
3 1

Test 5

Group: 1, 2

Verdict:

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

correct output
947 9

user output
0 0

Test 6

Group: 1, 2

Verdict:

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

correct output
886 9

user output
886 1

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
695 1

Test 8

Group: 1, 2

Verdict:

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

correct output
0 0

user output
314 1

Test 9

Group: 1, 2

Verdict:

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

correct output
0 0

user output
314 1

Test 10

Group: 1, 2

Verdict:

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

correct output
999 999

user output
0 0

Test 11

Group: 1, 2

Verdict:

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

correct output
999 999

user output
999 1

Test 12

Group: 2

Verdict:

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

correct output
10971 999

user output
992 1

Test 13

Group: 2

Verdict:

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

correct output
9999 999

user output
9999 1

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
1234 1

Test 15

Group: 2

Verdict:

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

correct output
9999 9999

user output
0 0

Test 16

Group: 2

Verdict:

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

correct output
9999 9999

user output
9999 1

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
99955 1

Test 19

Group: 2

Verdict:

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

correct output
299998 100000

user output
100000 1

Test 20

Group: 2

Verdict:

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

correct output
0 0

user output
100000 1

Test 21

Group: 2

Verdict:

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

correct output
133765 3

user output
0 0

Test 22

Group: 2

Verdict:

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

correct output
199982 5000

user output
0 0

Test 23

Group: 2

Verdict:

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

correct output
199999 199999

user output
0 0

Test 24

Group: 2

Verdict:

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

correct output
199999 199999

user output
199999 1