I am getting segmentation error . Please tell whats wrong in my code. The logic i applied looks fine to me idky am i getting segmentation error

#1
#2

hi @akshat1409 your approach is little bit wrong

  1. first right like this
int a[n];
int b[n];
  1. Inverse is Simply swapping the value of the array with the value at that index.

Algo

  1. Create a new Array say narr and original array is arr.
  2. now at the arr[i]th index of narr save the ith value.(previously i is the index and arr[i] is the value bt now arr[i] is the index and i is the value.)
  3. return new array.

refer this code ->

#include<bits/stdc++.h>
using namespace std;
int main() {
   int N;
   cin>>N;
   int a[N];
   for(int i =0;i<N;i++)
   	cin>>a[i];
   int b[N];
   for(int j=0;j<N;j++){
   	b[a[j]]=j;
   }
   for(int i=0;i<N;i++){
       cout<<b[i]<<" ";
   }
   return 0;
}
#3

what is the meaning of <bits/stdc++.h> ; cin>>N;( we take in value by cin>> not cin&gt ; int i =0;i<N;i++

#4

all of this has not been taught yet. Can you please Please give a simpler code for this which doesnt use &gt and stuff

#5

even in my approach i was making a new array the same way. Where did i go wrong? Please correct my code i am unable to understand urs

#6

hi @akshat1409 <bits/stdc++.h> includes all libraries at once, rest things is same as u use

#7

whats the meaning of cin>>N;

#8

@akshat1409 u r taking value of N as input from user

#9

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