how you calculate the expression m * ( n-m+1) how u get that?
STRING MATCHING
hi @Anusree_Dey
O() notation denotes worst case time complexity
so O(m*(n-m+1))=O(mn-m^2+m)
now among mn ,m^2 m worst or max time is mn so we can write
it as O(mn)
mn >=mm because n>=m
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