func_code_string: #include <bits/stdc++.h>   using namespace std;   #pragma warning(disable : 4996)   #pragma comment(linker,  /STACK:336777216 )   const int sqrtn = 300;   const int inf = 987654321;   const int sz = 1e5 + 5;   const int mod = 1e9 + 7;   int n, vis[sz];   string str;   int main() {     scanf( %d , &n);     cin >> str;     int ret = 0, x = 0, y = 0, last = 0;     if (str[0] ==  U ) {       y++;       last = 1;     } else       x++, last = 0;     for (int i = 1; i < n; i++) {       if (str[i] ==  U )         y++;       else         x++;       if (vis[i - 1]) {         if (y > x && last == 0) {           ret++, last = 1;         } else if (x > y && last == 1) {           ret++, last = 0;         }       }       if (y == x) vis[i] = 1;     }     printf( %d , ret);   }   