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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int              long long int
  4. #define double           long double
  5. inline int power(int a, int b) {
  6.     int x = 1;
  7.     while (b) {
  8.         if (b & 1) x *= a;
  9.         a *= a;
  10.         b >>= 1;
  11.     }
  12.     return x;
  13. }
  14.  
  15.  
  16. const int M = 1000000007;
  17. const int N = 3e5+9;
  18. const int INF = 2e9+1;
  19. const int LINF = 2000000000000000001;
  20.  
  21. //_ ***************************** START Below *******************************
  22.  
  23.  
  24.  
  25. //* permutation given => no repetiton
  26.  
  27. vector<int> a;
  28. vector<int> b;
  29. void consistency(int n) {
  30.  
  31. 	unordered_map<int,int> freq;
  32. 	vector<int> ans(n, 0);
  33.  
  34. 	for(int i=0; i<n; i++){
  35. 		if(i-1>=0)	ans[i] = ans[i-1];
  36. 		if(a[i] == b[i]){
  37. 			ans[i]++;
  38. 		}
  39. 		else{
  40.  
  41. 			if(freq.count(a[i]) ){
  42. 				ans[i]+=1;
  43. 			}
  44. 			if( freq.count(b[i]) ){
  45. 				ans[i]+=1;
  46. 			}
  47. 		}
  48. 		freq[a[i]]++;
  49. 		freq[b[i]]++;
  50.  
  51. 	}
  52.  
  53. 	for(int i=0; i<n; i++) cout << ans[i] << " "; cout << endl;
  54. }
  55.  
  56. void solve() {
  57.  
  58.     int n;
  59.     cin >> n;
  60.     a.resize(n);
  61.     b.resize(n);
  62.     for(int i=0; i<n; i++) cin >> a[i];
  63.     for(int i=0; i<n; i++) cin >> b[i];
  64.     consistency(n) ;
  65.  
  66. }
  67.  
  68.  
  69.  
  70.  
  71.  
  72. int32_t main() {
  73.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  74.  
  75.     int t = 1;
  76.     while (t--) {
  77.         solve();
  78.     }
  79.  
  80.     return 0;
  81. }
Success #stdin #stdout 0.01s 5292KB
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https://ideone.com/K0GBsP
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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