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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define int long long
  4. using namespace std;
  5. const int maxn = 1e6+7;
  6. ll n,m,ans=1,pre[maxn],a,b;
  7. map<pair<ll,ll>,ll> mp;
  8. int32_t main()
  9. {
  10.     ios_base::sync_with_stdio(false);
  11.     cin.tie(NULL);
  12.     freopen("ROBOT.INP","r",stdin);
  13.     freopen("ROBOT.OUT","w",stdout);
  14.     cin >> n >> m;
  15.     string s,t; cin >> s >> t;
  16.     ll x=1,y=1;
  17.     mp[{x,y}] = 1;
  18.     mp[{n,m}] = 1;
  19.     for (auto c:s)
  20.     {
  21.         if (c == 'D')
  22.         {
  23.             x++;
  24.             mp[{x,y}] = 1;
  25.         }
  26.         else if (c == 'R')
  27.         {
  28.             y++;
  29.             mp[{x,y}] = 1;
  30.         }
  31.     }
  32.     x = n, y = m;
  33.     for (auto c:t)
  34.     {
  35.         if (c == 'U')
  36.         {
  37.             x--;
  38.             if (mp[{x,y}] == 1) ans++;
  39.         }
  40.         else if (c == 'L')
  41.         {
  42.             y--;
  43.             if (mp[{x,y}] == 1) ans++;
  44.         }
  45.         // cout << ans << '\n';
  46.     }
  47.  
  48.     cout << ans;
  49.     return 0;
  50. }
  51.  
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/eUxig5
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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