Robotti

input/code.cpp: In function 'int main()':
input/code.cpp:36:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         d_right = robot_index < coin_rooms.size()-1 ? coin_rooms[robot_index+1]-coin_rooms[robot_index] : 9999999;
      |                   ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

#include <iostream>
#include <vector>
#include <string>

int main()
{
    int amount = 0;
    char rooms[300000];
    int robot_index = 0;
    int steps = 0;
    int coins = 0;

    std::cin >> amount;
    std::cin >> rooms;

    std::vector<int> coin_rooms;
    for(int i = 0; i < amount; i++)
    {
        switch(rooms[i])
        {
            case '*':
                coin_rooms.push_back(i);
                break;
            case 'R':
                robot_index = coin_rooms.size();
                coin_rooms.push_back(i);
                break;
        }
    }

    int d_left;
    int d_right;
    while(1)
    {
        d_left = robot_index > 0 ? coin_rooms[robot_index]-coin_rooms[robot_index-1] : 9999999;
        d_right = robot_index < coin_rooms.size()-1 ? coin_rooms[robot_index+1]-coin_rooms[robot_index] : 9999999;

        if(d_left < d_right)
        {
            steps += d_left;
            coin_rooms.erase(coin_rooms.begin()+robot_index);
            robot_index--;
            coins++;
        }
        else if(d_right < d_left)
        {
            steps += d_right;
            coin_rooms.erase(coin_rooms.begin()+robot_index);
            coins++;
        }
        else if(d_left == d_right)
        {
            break;
        }
    }

    std::cout << steps << " " << coins << "\n";
    return 0;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 1, 2

Verdict: ACCEPTED

Test 7

Group: 1, 2

Verdict: ACCEPTED

Test 8

Group: 1, 2

Verdict: ACCEPTED

Test 9

Group: 1, 2

Verdict: ACCEPTED

Test 10

Group: 1, 2

Verdict: ACCEPTED

Test 11

Group: 1, 2

Verdict: ACCEPTED

Test 12

Group: 2

Verdict: ACCEPTED

Test 13

Group: 2

Verdict: ACCEPTED

Test 14

Group: 2

Verdict: ACCEPTED

Test 15

Group: 2

Verdict: ACCEPTED

Test 16

Group: 2

Verdict: ACCEPTED

Test 17

Group: 2

Verdict: ACCEPTED

Test 18

Group: 2

Verdict: ACCEPTED

Test 19

Group: 2

Verdict: ACCEPTED

Test 20

Group: 2

Verdict: ACCEPTED

Test 21

Group: 2

Verdict: ACCEPTED

Test 22

Group: 2

Verdict: ACCEPTED

Test 23

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 24

Group: 2

Verdict: ACCEPTED