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  1. Prepare
  2. C++
  3. Introduction
  4. Arrays Introduction
  5. Discussions

Arrays Introduction

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1322 Discussions

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  • sathwikreddy962
     + 0 comments

    int n; cin>>n;

    int arr[n];

for(int i=0; i<n;  i++){
    cin>>arr[i];
}

for(int i=n-1; i>=0; i--){
    cout<<arr[i]<<" ";
}

  • anen08saks
     + 0 comments

    If segmentation error keeps coming up in the test case

    #include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n;
    cin>>n;
    int *arr = new int[n];
    
    for(int i=0 ; i<n ; i++)
    {
        cin>>arr[i];
    }
    int start = 0;
    int end = n-1;
    while(start<=end)
    {
        int temp = arr[start]; //swapping 
        arr[start] = arr[end];
        arr[end] = temp;
        start++;
        end--;
    }
    for(int i=0;  i<n ; i++)
    {
        cout<<arr[i]<<" ";
    }
    return 0;
}

  • kevinbccr
     + 0 comments

    Good luck

    include

    include

    using namespace std;

    int main() { /* Enter your code here. Read input from STDIN. Print output to STDOUT */
    int n; cin>>n; int num[n];

    for(int i=0; i<n; i++){

    cin>>num[i];
}

for(int i=1; i<n+1; i++){

    cout<<num[n-i]<<" ";

}

    return 0; }

  • dhruvflare
     + 0 comments
    #include <iostream>

using std::cin, std::cout;

int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */
    int n;
    cin >> n;
    int arr[n];
    for (int i=0; i<n;++i)
    {
        cin >> arr[n-i-1];
    }
    for (int i=0; i<n;++i)
    {
        cout << arr[i] << " ";
    }
       
    return 0;
}

  • sezzaldiin0
     + 0 comments
    #include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    int n ;
    cin >> n;
    int a[n] ;
    for(int i =  0 ; i<n ;i++)
    {
        cin >> a[i];
    }
    for(int i=n-1 ; i>=0 ; i--)
    {
        cout << a[i] << " ";
    }   
    return 0;
}