Forgotten measurements

#include <bits/stdc++.h>
using namespace std;

int main() {
    string s;
    cin>>s;
    int horSum=0;
    int parsa=0;
    char cur='A';
    int len = 0;
    for (int i = 0; i < (int)s.size();i++) {
        if (s[i]==cur) {
            len++;
        } else if (s[i]=='U' || s[i]=='D') continue;
        else {
            parsa = max(parsa,len);
            horSum += len;
            len = 1;
            cur = s[i];
        }
    }
    horSum+=len;
    parsa = max(parsa, len);
    cur='A';
    len = 0;
    for (int i=0; i<(int)s.size();i++) {
        if (s[i]=='U' || s[i]=='D') continue;
        if (s[i]!=cur && cur!='A') break;
        cur=s[i];
        len++;
    }
    for (int i=(int)s.size()-1;i>0;i--) {
        if (s[i]=='U' || s[i]=='D') continue;
        if (s[i]!=cur) break;
        len++;
    }
    parsa = max(parsa,len);
    horSum -= parsa;

    int verSum = 0;
    parsa = 0;
    cur = 'A';
    len = 0;

    for (int i = 0; i < (int)s.size();i++) {
        if (s[i]==cur) {
            len++;
        } else if (s[i]=='L' || s[i]=='R') continue;
        else {
            parsa = max(parsa,len);
            verSum += len;
            len = 1;
            cur = s[i];
        }
    }
    verSum+=len;
    parsa = max(parsa,len);
    cur='A';
    len = 0;
    for (int i=0; i<(int)s.size();i++) {
        if (s[i]=='L' || s[i]=='R') continue;
        if (s[i]!=cur && cur!='A') break;
        cur=s[i];
        len++;
    }
    for (int i=(int)s.size()-1;i>0;i--) {
        if (s[i]=='L' || s[i]=='R') continue;
        if (s[i]!=cur) break;
        len++;
    }
    parsa = max(parsa,len);
    verSum -= parsa;

    cout << horSum + verSum << "\n";
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: WRONG ANSWER