I have a syntax doubt

#1

sir, at time 9:15, in line no. ‘6’ , how can the value of ‘i’ & ‘j’ be ‘m’ and ‘n’. because, i think, i should me ‘m-1’ & ‘n-1’.

#2

hello @chandreshmaurya

yeah correct, and that is why we are passing m-1 and n-1 in place of m and n , in line 58.

#3

sir, at 13:51 ,in line 27, when we are doing the backtracking, is it mean all the element of matrix will be zero ?

#4

…

not all , when we arrived at (i,j) sol[i][j] was 0.
we set it to 1. and then we tried finding the way from here onwards.
but we didnt find it , so while returning it our responsibiliy to undo the changes that we did while arriving .
that is why we are doing sol[i][j]=0; // we also call this backtracking

#5

oohk sir. i got your point. thank you sir.

#6

sir, my second doubt please

#7

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#8

…

yeah tell me …

#9

thank sir, now, all doubt have been cleared.