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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. const int N = 1e6;
  5. int n, a[N], mx[N], mn[N];
  6.  
  7. int main(int argc, char **argv) {
  8. 	int t;
  9. 	scanf("%d", &t);
  10. 	while (t-- != 0) {
  11. 		scanf("%d", &n);
  12. 		for (int i = 0; i < n; ++i)
  13. 			scanf("%d", &a[i]);
  14. 		mx[0] = a[0];
  15. 		for (int i = 1; i < n; ++i)
  16. 			mx[i] = max(mx[i - 1], a[i]);
  17. 		mn[n - 1] = a[n - 1];
  18. 		for (int i = n - 2; i >= 0; --i)
  19. 			mn[i] = min(mn[i + 1], a[i]);
  20. 		int res = 0;
  21. 		for (int i = 1; i + 1 < n; ++i)
  22. 			if (a[i] >= mx[i - 1] && a[i] <= mn[i + 1])
  23. 				++res;
  24. 		printf("%d\n", res);
  25. 	}
  26. 	return 0;
  27. }
Success #stdin #stdout 0.01s 26952KB
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https://ideone.com/9SzqJb
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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