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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int solve(vector<int>& a , int n , int x , int y){
  5. 	int ans = 0;
  6. 	for(int i=0;i<n;i++){
  7. 		int countX=0,countY=0;
  8. 		for(int j=i;j<n;j++){
  9. 			if(a[j]==x)countX++;
  10. 			else countY++;
  11.  
  12. 			if(countX==countY)ans++;
  13. 		}
  14. 	}
  15. 	return ans;
  16. }
  17.  
  18. int main() {
  19. 	int n;
  20. 	cin>>n;
  21. 	vector<int>a(n);
  22. 	for(int i=0;i<n;i++){
  23. 		cin>>a[i];
  24. 	}
  25. 	int x,y;
  26. 	cin>>x>>y;
  27. 	cout<<solve(a,n,x,y);
  28. 	return 0;
  29. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/6vbOsn
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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