misal:
n=7
A[i] ==> A[1]=1, A[2]=2, A[3]=3, A[4]=4, A[5]=5, A[6]=6, A[7]=7
sebelum reversal 
| 
1 | 
2 | 
3 | 
4 | 
5 | 
6 | 
7 | 
merubah menjadi reversal ::
rumus n - i +1
7 - 1 + 1 = 7
7 - 2 + 1 = 6
7 - 3 + 1 = 5
7 - 4 + 1 = 4
7 - 5 + 1 = 3
7 - 6 + 1 = 2
7 - 7 + 1 = 1
sesudah reversal
| 
7 | 
6 | 
5 | 
4 | 
3 | 
2 | 
1 | 






 








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