func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   struct node {     long long x, y;   } s, t, dist[100005];   int dx[4] = {0, 0, -1, 1};   int dy[4] = {1, -1, 0, 0};   char wind[100005];   string mov =  UDLR ;   long long pos, l, r, mid;   bool check(long long mid) {     long long zq = mid / n, sy = mid % n;     long long x = s.x + zq * dist[n].x + dist[sy].x;     long long y = s.y + zq * dist[n].y + dist[sy].y;     long long dis = abs(t.x - x) + abs(t.y - y);     return dis <= mid;   }   int main() {     cin >> s.x >> s.y >> t.x >> t.y;     cin >> n >> wind;     for (int i = 0; i < n; i++) {       pos = -1;       for (int j = 0; j < 4; j++) {         if (wind[i] == mov[j]) pos = j;       }       dist[i + 1].x = dist[i].x + dx[pos];       dist[i + 1].y = dist[i].y + dy[pos];     }     l = 0, r = 1e15;     while (l <= r) {       mid = (l + r) >> 1;       if (check(mid)) {         r = mid - 1;       } else {         l = mid + 1;       }     }     if (l > 1e15)       cout << -1 << endl;     else       cout << l << endl;     return 0;   }   