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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. #define ll long long
  6. #define ull unsigned ll
  7. #define ld long double
  8. typedef vector<int> vi;
  9. typedef multiset<int> mi;
  10. typedef multiset<ll> mll;
  11. typedef vector<ll> vll;
  12. typedef vector<bool> vb;
  13. typedef vector<string> vs;
  14. typedef set<ll> sll;
  15. typedef vector<vector<int>> _2vi;
  16. typedef vector<vector<ll>> _2vll;
  17. #define all(v) ((v).begin()), ((v).end())
  18. #define sz(v) ((ll)((v).size()))
  19.  
  20. #define vinp(v, n)                \
  21.     for (ull i = 0; i < (n); i++) \
  22.     cin >> (v)[i]
  23. #define printv(v)      \
  24.     for (auto i : (v)) \
  25.     cout << i << " "
  26. #define fr0(i, n) for (ull(i) = 0; (i) < (n); (i)++)
  27. #define fr1(i, n) for (ull(i) = 1; (i) < (n); (i)++)
  28. #define fr(i, x, n) for (ull(i) = (x); (i) < (n); (i)++)
  29. #define _CRT_SECURE_NO_WARNING
  30. const ll MOD = 1000000007;
  31.  
  32. void Bustany() {
  33.     ios_base::sync_with_stdio(false);
  34.     cin.tie(NULL);
  35.     cout.tie(NULL);
  36. #ifndef ONLINE_JUDGE
  37.     freopen("./in.txt", "r", stdin), freopen("./out.txt", "w", stdout);
  38. #endif
  39. }
  40.  
  41. const ll N = 1e5 + 5;
  42. vector<sll> adj(N);
  43. //_2vll adj(N,vll(N));
  44. vb vis;
  45.  
  46. void solve() {
  47.     string s, t;
  48.     cin >> s >> t;
  49.     ll l = -1, r = -1;
  50.     for (ll i = 0; i < s.size(); i++) {
  51.         if (s[i] != t[i]) {
  52.             l = i;
  53.             break;
  54.         }
  55.     }
  56.     for (ll i = s.size() - 1; i >= 0; i--) {
  57.         if (s[i] != t[i]) {
  58.             r = i;
  59.             break;
  60.         }
  61.     }
  62.     if (l != -1 && r != -1) {
  63.         reverse(t.begin() + l, t.begin() + r + 1);
  64.         if (s == t)cout << "YES";
  65.         else {
  66.             cout << "NO";
  67.         }
  68.     } else {
  69.         if (s == t)cout << "YES";
  70.         else
  71.             cout << "NO";
  72.     }
  73. }
  74.  
  75. int main() {
  76.     Bustany();
  77.     ll t = 1;
  78. //     cin >> t;
  79.     while (t--) {
  80.         solve();
  81.     }
  82. }
Success #stdin #stdout 0.01s 7704KB
comments (?)
stdin 
Standard input is empty
stdout 
YES
https://ideone.com/0zrXNz
language:
C++14 (clang 8.0)
created:
10 hours ago
visibility:
public

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