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  1. #include <bits/stdc++.h> 
  2.  
  3. using namespace std;  
  4.  
  5. typedef long long ll;  
  6. typedef pair<int, int> ii;  
  7.  
  8. const int INF = 2e9;  
  9. const ll LINF = 1e18;  
  10.  
  11. template<typename T>
  12. void minimize(T& a, const T& b) {
  13. 	if (b < a) a = b; 
  14. }
  15.  
  16. const int N = 1e5 + 5; 
  17.  
  18. int n; 
  19. int b[N], c[N];
  20.  
  21. int main() {
  22. 	ios::sync_with_stdio(false); 
  23. 	cin.tie(nullptr); 	
  24. 	cin >> n; 
  25. 	for (int i = 1; i <= n; i++) cin >> b[i]; 
  26. 	for (int i = 1; i <= n; i++) cin >> c[i]; 
  27.  
  28. 	sort(b + 1, b + n + 1); 
  29. 	sort(c + 1, c + n + 1); 
  30.  
  31. 	int ans = INF;  
  32. 	for (int i = 1, j = n + 1; i <= n; i++) {
  33. 		// j là vị trí nhỏ nhất thoả mãn c[j] >= -b[i]
  34. 		while (j - 1 > 0 && c[j - 1] >= -b[i]) j--; 
  35. 		if (j <= n) minimize(ans, abs(b[i] + c[j])); 
  36. 		if (j - 1 > 0) minimize(ans, abs(b[i] + c[j - 1])); 
  37. 	}
  38.  
  39. 	cout << ans << '\n'; 
  40. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/mCYktm
language:
C++14 (gcc 8.3)
created:
346 days ago
visibility:
secret

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