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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. #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.  
  28.  
  29.  
  30. vector<int> a;
  31. vector<int> b;
  32.  
  33. int consistency(int n, int m){
  34.  
  35. 	sort(begin(a), end(a));
  36. 	sort(begin(b), end(b));
  37.  
  38. 	int ct = 0;
  39.  
  40. 	int i = 0, j = 0;
  41. 	while(i<n && j<m){
  42.  
  43. 		while(i<n && a[i] <= b[j]) i++;
  44. 		if(i==n) break;
  45.  
  46. 		ct++;
  47. 		i++;
  48. 		j++;
  49. 	}
  50.  
  51. 	return ct;
  52. }
  53.  
  54.  
  55.  
  56.  
  57.  
  58.  
  59.  
  60.  
  61.  
  62.  
  63.  
  64.  
  65.  
  66.  
  67.  
  68. int practice(int n, int m){
  69.  
  70.  
  71.     return 0;
  72. }
  73.  
  74.  
  75.  
  76.  
  77.  
  78. void solve() {
  79.  
  80.     int n, m;
  81.     cin>> n >> m;
  82.  
  83.     a.resize(n);
  84.     b.resize(m);
  85.     for(int i=0; i<n; i++) cin >> a[i];
  86.     for(int i=0; i<m; i++) cin >> b[i];
  87.  
  88.     cout << consistency(n, m) << endl;
  89.  
  90.  
  91. }
  92.  
  93.  
  94.  
  95.  
  96.  
  97. int32_t main() {
  98.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  99.  
  100.     int t = 1;
  101.     cin >> t;
  102.     while (t--) {
  103.         solve();
  104.     }
  105.  
  106.     return 0;
  107. }
Success #stdin #stdout 0s 5280KB
comments (?)
stdin 
2
3 3
1 2 3
1 2 1
9 9
9 8 7 7 6 5 4 3 3
1 2 5 5 6 7 8 9 9
stdout 
2
7
https://ideone.com/tUz7Rv
language:
C++14 (gcc 8.3)
created:
2 hours ago
visibility:
public

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