CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:qhuge
Submission time:2024-11-01 19:30:23 +0200
Language:C++ (C++20)
Status:READY
Result:30
Feedback
groupverdictscore
#1ACCEPTED30
#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
#7ACCEPTED0.01 s1, 2details
#8ACCEPTED0.00 s1, 2details
#9ACCEPTED0.00 s1, 2details
#10ACCEPTED0.02 s1, 2details
#11ACCEPTED0.03 s1, 2details
#12ACCEPTED0.02 s2details
#13ACCEPTED0.03 s2details
#14ACCEPTED0.55 s2details
#15--2details
#16--2details
#17ACCEPTED0.01 s2details
#18--2details
#19--2details
#20ACCEPTED0.09 s2details
#21ACCEPTED0.01 s2details
#22ACCEPTED0.53 s2details
#23--2details
#24--2details

Code

#include <iostream>
#include <string>
#include <set>
#include <algorithm>
#include <bits/stdc++.h> 

unsigned int robottiIndeksi;

int etsi(std::set<int> kolikotX, int robottiX){

    if (kolikotX.size() <= 1){
        return 0;
    }
    auto it = kolikotX.begin();
    if (robottiIndeksi == 0){
        std::advance(it, 1);
        return *it - robottiX;
    } else if (robottiIndeksi == (kolikotX.size() - 1)){
        robottiIndeksi--;
        std::advance(it, kolikotX.size() - 2);
        return *it - robottiX;
    }
    std::advance(it, robottiIndeksi - 1);
    int vas = abs(*it - robottiX);
    std::advance(it, 2);
    int oik = abs(*it - robottiX);
    

    if (oik < vas) {
        return oik;
    } else if (vas < oik) {
        robottiIndeksi--;
        return -vas;
    } else {
        return 0;
    }
}

int main() { 
    int n;
    std::cin >> n;
    std::string map;
    std::getline(std::cin, map);
    std::cin >> map;
    
    std::set<int> kolikotX;
    int robottiX = 0;
    for (unsigned int i = 0; i < map.size(); i++) {
        if (map[i] == '*'){
            kolikotX.insert(i);
            continue;
        } else if (map[i] == 'R'){
            robottiX = i;
            kolikotX.insert(i);
            robottiIndeksi = kolikotX.size() - 1;
        }
    }

    int askelia = 0;
    int kolikoita = 0;
    while (true){
        int et = etsi(kolikotX, robottiX);
        if (et == 0){
            break;
        }
        askelia = askelia + abs(et);
        robottiX = robottiX + et;
        kolikoita++;
        //auto it = next(kolikotX.begin(), robottiIndeksi); 
        kolikotX.erase(robottiX+(et*-1));
        
        if (kolikotX.size() == 1) {
            break;
        }
    }
    std::cout << askelia << " " << kolikoita << "\n";
    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: ACCEPTED

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

correct output
1287 400

user output
1287 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: 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: ACCEPTED

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

correct output
10971 999

user output
10971 999

Test 13

Group: 2

Verdict: ACCEPTED

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

correct output
9999 999

user output
9999 999

Test 14

Group: 2

Verdict: ACCEPTED

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

correct output
18766 5000

user output
18766 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
(empty)

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:

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

correct output
199999 199999

user output
(empty)

Test 24

Group: 2

Verdict:

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

correct output
199999 199999

user output
(empty)