CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:Mariia
Submission time:2024-10-28 08:00:20 +0200
Language:C++ (C++20)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED30
#2ACCEPTED70
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
#7ACCEPTED0.00 s1, 2details
#8ACCEPTED0.00 s1, 2details
#9ACCEPTED0.00 s1, 2details
#10ACCEPTED0.00 s1, 2details
#11ACCEPTED0.00 s1, 2details
#12ACCEPTED0.00 s2details
#13ACCEPTED0.00 s2details
#14ACCEPTED0.01 s2details
#15ACCEPTED0.01 s2details
#16ACCEPTED0.01 s2details
#17ACCEPTED0.01 s2details
#18ACCEPTED0.02 s2details
#19ACCEPTED0.06 s2details
#20ACCEPTED0.08 s2details
#21ACCEPTED0.01 s2details
#22ACCEPTED0.02 s2details
#23ACCEPTED0.10 s2details
#24ACCEPTED0.11 s2details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:10:9: warning: variable 'ind' set but not used [-Wunused-but-set-variable]
   10 |     int ind = 0;
      |         ^~~

Code

#include <iostream>
#include <set>

using namespace std;

int main() {
    int n;
    cin >> n;
    int cur = 0;
    int ind = 0;
    set<int> coin;
    for (int i = 0; i < n; i++) {
        char c; cin >> c;
        if (c == '.') {
            continue;
        }
        if (c == 'R') {
            cur = i;
            ind = coin.size();
        } else {
            coin.insert(i);
        }
    }
    int cntMove = 0;
    int cntCoins = 0;
    int l, r;
    while (coin.size() > 0) {
        auto it = coin.lower_bound(cur);
        if (it == coin.end()) {
            r = 1e9;
        } else {
            r = *it;
        }
        if (it == coin.begin()) {
            l = -1e9;
        } else {
            it--;
            l = *it;
            it++;
        }
        if (cur - l < r - cur) {
            coin.erase(l);
            cntCoins++;
            cntMove += (cur - l);
            cur = l;
        } else if (r - cur < cur - l) {
            coin.erase(r);
            cntCoins++;
            cntMove += (r - cur);
            cur = r;
        } else {
            break;
        }
    }
    cout << cntMove << ' ' << cntCoins;
}

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: ACCEPTED

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

correct output
9999 9999

user output
9999 9999

Test 16

Group: 2

Verdict: ACCEPTED

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

correct output
9999 9999

user output
9999 9999

Test 17

Group: 2

Verdict: ACCEPTED

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

correct output
0 0

user output
0 0

Test 18

Group: 2

Verdict: ACCEPTED

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

correct output
299934 10000

user output
299934 10000

Test 19

Group: 2

Verdict: ACCEPTED

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

correct output
299998 100000

user output
299998 100000

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: ACCEPTED

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

correct output
199999 199999

user output
199999 199999

Test 24

Group: 2

Verdict: ACCEPTED

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

correct output
199999 199999

user output
199999 199999