Battle Simulation

#include <bits/stdc++.h>

#define ll long long
#define N (1<<19)
using namespace std;

int main () {
    cin.sync_with_stdio(false);
    cin.tie(0);
    string s;
    cin>>s;
    int n = s.length();
    string ans;
    for (int i = 0; i < n; i++) {
        if (i < n - 2 && (s[i] == 'R' || s[i + 1] == 'R' || s[i + 2] == 'R')
            && (s[i] == 'B' || s[i + 1] == 'B' || s[i + 2] == 'B')
            && (s[i] == 'L' || s[i + 1] == 'L' || s[i + 2] == 'L')) {
                ans += "C";
                i += 2;
            }
        else {
            if (s[i] == 'R') ans += "S";
            else if (s[i] == 'B') ans += 'K';
            else ans += "H";
        }
    }
    cout<<ans<<endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED