How to perform operations

#1

How do I swap the values in the hashmap
and how can I print the hash map?

#2

Hi @goyalvivek
what do u mean by swapping values in hashmap…
regarding printing the hashmap, lets considers a map<int,int> mp
u can print it like this

for(auto x:mp){
cout<<x.first<<" "<<x.second<<endl;
}
#3

yes, i know this type or printing, in the question, i have to print the max possible permutation

#4

what do u mean by max possible permutation?? pls share the ques u are referring to

#5

Shekhar is a bomb defusal specialist. He once encountered a bomb that can be defused only by a secret code. He is given a number N and a number K. And he is also given permutation of first N natural numbers . The defusal code is the largest permutation possible by doing atmost K swaps among a pair of the given permutation. Help him to find the final permutation.

#6

are bhai ques link ya pure ques ki pic bhejo na… or ask doubt under that particular ques only… u have asked in ques unlock

#7

can i get the key with the help of value?

#8

map stores key value pair… u can get value from key… not key from value… for that u will have to do normal traversal only and check…

#9

yes, sir, it is the same question

#10

okay… u can refer this code https://ide.codingblocks.com/s/640120
try to dry run it on sample test case… ur doubt will be cleared…

#11

in the helping vide, the solution shows that we should store the data on hash map and swap accordingly, my question is, I can swap the indexes using their keys, but how am i supposed to print it?

#12

refer the code i sent u

#13

please help find the error https://ide.codingblocks.com/s/640140

#14

what is the error???

#15

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