func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e5 + 50;   long long T, n, m;   char s[maxn];   int main() {     cin >> n;     cin >> s + 1;     int sign = 0, x = 0, y = 0, ans = 0;     for (int i = 1; i <= n; i++) {       if (s[i] ==  U )         y++;       else if (s[i] ==  R )         x++;       if (y > x) {         if (sign == -1) ans++;         sign = 1;       } else if (y < x) {         if (sign == 1) ans++;         sign = -1;       }     }     cout << ans << endl;     return 0;   }   