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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define inf 99999999999999
  4. int main() {
  5. 	ios_base::sync_with_stdio(false);
  6. 	cin.tie(NULL);
  7. 	int n,i;
  8. 	cin>>n;
  9. 	int cost[n];
  10. 	string a[n],b[n];
  11. 	for(i=0;i<n;i++)cin>>cost[i];
  12. 	for(i=0;i<n;i++){
  13. 		cin>>a[i];
  14. 		b[i]=a[i];
  15. 		reverse(b[i].begin(),b[i].end());
  16. 	}
  17. 	int ans=0;
  18. 	for(i=0;i<n-1;i++){
  19. 		if(a[i+1]<a[i]){
  20. 			long long c1=-99,c2=-99,c3=-99;
  21. 			if(b[i]<a[i+1])c1=cost[i];else c1=inf;
  22. 			if(b[i+1]>a[i])c2=cost[i+1];else c2=inf;
  23. 			if(b[i]<b[i+1])c3=cost[i]+cost[i+1];else c3=inf;
  24. 			if(c1 <= c2 && c1 <=c3 && c1!=inf){ans+=c1;if(c1==c2)a[i+1]=min(a[i+1],b[i+1]);}
  25. 			else if(c2<=c1 && c2 <=c3 && c2!=inf){ans+=c2;a[i+1]=min(a[i+1],b[i+1]);}
  26. 			else if(c3<=c1 && c3 <=c2 && c3!=inf){ans+=c3;a[i+1]=min(b[i+1],a[i+1]);}
  27. 			else {cout<<-1;return 0;}
  28. 		}
  29. 	}
  30. 	cout<<ans;
  31.  
  32. 	return 0;
  33. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin 
3
1 3 1
aa
ba
ac
stdout 
1
https://ideone.com/zsr1QF
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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