Code giving segmentation fault

#1
#2

in line no 22
codtion is wrong if element present you add true with it
but if not present then you don’t assign false

so correct condition is
if(it!=m.end()){
}
this because map: find(k)
Searches the container for an element with a key equivalent to k and returns an iterator to it if found, otherwise it returns an iterator to map::end

and if you want to use stl then there is no point of making map
same thing you can do with array
you can find element in array as well

#3

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