Function to left shift a 2D array in C

Question

I\'m writing a function within my program to left shift all the numbers in an array that was passed to the function. An example is:

1 2 3 
4 5 6

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Answer 1

array[r][c] = array[r][c-1];

should be

array[r][c-1] = array[r][c];

Likewise for the row shift.