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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int top=-1;
  4. char s[101];
  5. void push(char c)
  6. {
  7.  s[++top]=c;
  8. }
  9. char pop()
  10. {
  11. 	return s[top--];
  12. }
  13. main()
  14. {
  15. 	int t;
  16. 	scanf("%d",&t);
  17. 	while(t--)
  18. 	{
  19. 		int n,m;
  20. 		scanf("%d %d",&n,&m);
  21. 		char str[50][101];
  22. 		for(int i=0;i<n;i++)
  23. 		scanf("%s",&str[i]);
  24. 		char str_n[1000];char arr[101];
  25. 		strcpy(str_n,str[0]);
  26. 		for(int i=1;i<n;i++)
  27. 		{  strcpy(arr,str_n);
  28. 			for(int j=0;j<strlen(str_n);j++)
  29. 			push(str_n[j]);
  30. 			for(int j=0;j<strlen(str_n);j++)
  31. 			str_n[j]=pop();
  32. 			strcpy(str_n,strcat(arr,strcat(str_n,str[i])));
  33.  
  34. 		}
  35. 		while(m--)
  36. 		{
  37. 			int y;
  38. 			scanf("%d",&y);
  39. 			printf("%c",str_n[y]);
  40. 		}
  41. 		printf("\n");
  42. 	}
  43. }
  44.  
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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2
3 7
a
b
c
0
1
2
3
4
5
6
2 6
ty
qwe
0
2
3
4
6
1
stdout
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aabbaac
tytqey
https://ideone.com/xQJYxD
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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