1 and 0 pattern program

#1

please explain me the program after first for loop in second for loop I won’t be able to understand help me please explain me in detail

#2

like in 3rd line first will be printed 0 after that 1 nd after that 0 how please explain me in detail

#3

how val=1-val work I won’t be able to understand

#4

@tarshid7
val contains only value 0 or 1 which we need to print.
first for loop will run till number of rows we have to print.
if row is odd starting value will be 0 else if row is even starting value will be 1 (val = (row_number%2==0)?1:0).
2nd for loop runs till number of column we have to print for every row.
first we print val and change it to 1 if it is 0 else change it to 0 if it is 1.
if previous val =0 , next val = 1-val = 1,
if previous val = 1, next val = 1-val = 0 and so on.

#5

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