Reverse an array(((()))))

#1

MY one test case is failing…why??
#include
using namespace std;

void reversearr(int a[], int begin, int end)
{
while (end > begin)
{
int start = a[begin];
a[begin] = a[end];
a[end] = start;
begin++;
end–;
}
}

void printarr(int a[] , int n){
for (int i = 0; i < n; i++)
{
cout<<a[i];
}

}

int main()
{
int n;
cin >> n;
int a[n];
for (int i = 0; i < n; i++)
{
cin>>a[i];
}
reversearr(a , 1 , n-1);
printarr(a , n);

return 0;

}

#2

hi @abhinavssr2003_eab0717682969e5c,
this is not reverse array question, here 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. print the array

check here there is some fault in online ide of cb so im sharing the pic of code

image
image1366Ă—768 63.5 KB

#3

hi @abhinavssr2003_eab0717682969e5c
u can refer to the code ive commented https://ide.codingblocks.com/s/657727

#4

sir please correct my code if you can as i am not familiar with strings yet

#5

hi @abhinavssr2003_eab0717682969e5c,

corrected your code check this https://ideone.com/8lW4Vw

#6

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