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Asked: 2026-05-23T08:01:47+00:00

Possible Duplicate: In C arrays why is this true? a[5] == 5[a] int a[5]={1,2,3,4,5};

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Possible Duplicate:
In C arrays why is this true? a[5] == 5[a] 

int a[5]={1,2,3,4,5};
int i=4;
printf("%d",i[a]);

Why do a[i] and i[a] refer to same location in the array?

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1 Answer

  1. Editorial Team

    This is because array subscript is commutative (it’s an addition), the order can be swapped :

    a[i] = *(a + i)
i[a] = *(i + a)

*(a + i) = *(i + a)
a[i] = i[a]
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