How to add 2 arrays into user defined function

Answer 1

int * addTwoArray(int * a,int *b,int size)
{
//array a and b must be of same size
int *c=(int)malloc(sizeof(int)*size);
for(int i=0;i<size;i++)
{
c[i]=a[i]+b[i];
}
return c;
}

Answer 2

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Answer 3

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Answer 4

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