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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t;
  6. 	cin >> t;
  7. 	while(t--){
  8. 		int n;
  9. 		cin >> n;
  10. 		int a[n],b[n];
  11. 		for(int i=0;i<n;i++){
  12. 			cin >> a[i];
  13. 		}
  14. 		for(int i=0;i<n;i++){
  15. 			cin >> b[i];
  16. 		}
  17. 		stack<pair<int,int>> st;
  18. 		for(int i=0;i<n;i++){
  19. 			int right = a[i];
  20. 			int left = a[i] - b[i] + 1;
  21. 			if(st.size() == 0){
  22. 				st.push(make_pair(right,left));
  23. 			}
  24. 			else{
  25. 				int topl,topr;
  26. 				topl = st.top().second;
  27. 				topr = st.top().first;
  28. 				while(left <= topr && st.size() > 0){
  29. 					st.pop();
  30. 					left = min(left,topl);
  31. 					if(st.size() > 0){
  32. 						topl = st.top().second;
  33. 						topr = st.top().first;
  34. 					}
  35.  
  36. 				}
  37. 				st.push(make_pair(right,left));
  38. 			}
  39. 		}
  40. 		long long ans(0);
  41. 		while(st.size() > 0){
  42. 			int topl,topr;
  43. 			topl = st.top().second;
  44. 			topr = st.top().first;
  45. 			int len = topr - topl + 1;
  46. 			ans += 1LL * len * (len + 1)/2;
  47. 			cout << topr << " " << topl << endl;
  48. 			st.pop();
  49. 		}
  50. 		cout << ans << endl;
  51. 	}
  52. 	return 0;
  53. }
Success #stdin #stdout 0.01s 5408KB
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https://ideone.com/84Wmlh
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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