fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int              long long int
  4. #define double           long double
  5. #define print(a)         for(auto x : a) cout << x << " "; cout << endl
  6.  
  7.  
  8. const int M = 1000000007;
  9. const int N = 3e5+9;
  10. const int INF = 2e9+1;
  11. const int LINF = 2000000000000000001;
  12.  
  13. inline int power(int a, int b, int mod=M) {
  14.     int x = 1;
  15.     a %= mod;
  16.     while (b) {
  17.         if (b & 1) x = (x * a) % mod; 
  18.         a = (a * a) % mod;
  19.         b >>= 1;
  20.     }
  21.     return x;
  22. }
  23.  
  24.  
  25. //_ ***************************** START Below *******************************
  26.  
  27. // cat batman lat matter cat matter cat
  28.  
  29.  
  30.  
  31. string a;
  32.  
  33. vector<string> consistency(int n){
  34.  
  35. 	map<string, int> mp;
  36.  
  37. 	stringstream ss(a);
  38. 	string temp;
  39.  
  40. 	while(ss >> temp){
  41. 		mp[temp]++;
  42. 	}
  43.  
  44. 	vector<string> ans;
  45.  
  46. 	for(auto& t : mp){
  47. 		if(t.second >= 2){
  48. 			ans.push_back(t.first);
  49. 		}
  50. 	}
  51.  
  52. 	return ans;
  53. }
  54.  
  55.  
  56.  
  57.  
  58.  
  59.  
  60.  
  61.  
  62.  
  63.  
  64.  
  65.  
  66.  
  67.  
  68.  
  69. int practice(int n){
  70.  
  71.  
  72.     return 0;
  73. }
  74.  
  75.  
  76.  
  77.  
  78. void solve() {
  79.  
  80.     getline(cin, a);
  81.  
  82.     int n = a.size();
  83.  
  84.     auto ans = consistency(n);
  85.     for(auto& t : ans) cout << t << " ";  cout << endl;
  86.  
  87.  
  88. }
  89.  
  90.  
  91.  
  92.  
  93.  
  94. int32_t main() {
  95.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  96.  
  97.     int t = 1;
  98.     // cin >> t;
  99.     while (t--) {
  100.         solve();
  101.     }
  102.  
  103.     return 0;
  104. }
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
copy 
cat batman lat matter cat matter cat
stdout
copy 
cat matter
https://ideone.com/JMKxkM
language:
C++14 (gcc 8.3)
created:
6 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!