Robotti

input/code.cpp: In function 'int main()':
input/code.cpp:27:37: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |                         s.erase(d_u + r);
      |                                 ~~~~^~~

#include <set>
#include <cstdio>
#include <iostream>
 
int main(void) {
	int n_r, r, c = 0, st = 0;
	std::cin >> n_r;
	std::set<int> s;
	for (int i = 0; i < n_r; i++) {
		char c = getc(stdin);
		if (c == '\n') {
			i--;
			continue;
		} else if (c == '*') {
			s.insert(i);
		} else if (c == 'R') {
			r = i;
		}
	}
	for (;;) {
		int d_u, d_l;
		if (s.lower_bound(r) == s.begin()) d_l = 1<<25;
		else d_l = r - *std::prev(s.upper_bound(r));
		if (s.lower_bound(r) == s.end()) d_u = 1<<25;
		else d_u = *s.lower_bound(r) - r;
		if (d_l > d_u) {
			s.erase(d_u + r);
			r = d_u + r;
			st += d_u;
			c++;
		} else if (d_u > d_l) {
			s.erase(r - d_l);
			r = r - d_l;
			st += d_l;
			c++;
		} else {
			std::cout << st << ' ' << c << std::endl;
			return 0;
		}
		//std::cout << st << ' ' << c << ' ' << r << ' ' << d_u << ' ' << d_l << std::endl;
	}
}

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: ACCEPTED

Test 24

Group: 2

Verdict: ACCEPTED