What is wrong with this code, it shows segmentation error

#1

please tell me the reason for the error, i am facing it since a long time, even after searching it online, the doubts aint clear

#2
#3

hi shivam

You are getting run time error because of this statement
while(currentp>=price[s.top()] and !s.empty()){
here if stack is empty it can’t access s.top();
correct statement will be
while(!s.empty() and currentp>=price[s.top()]){

here first we check whether stack is empty or not
if stack is empty it will not check other condition because in case of “and” if one condition is false output will be false irrespective of other

Modified Code

#4

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