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  1. Prepare
  2. C
  3. Arrays and Strings
  4. Array Reversal
  5. Discussions

Array Reversal

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834 Discussions

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  • samarthrjain240
     + 0 comments
    #include <stdio.h>
#include <stdlib.h>

int main()
{
    int num, *arr, i;
    scanf("%d", &num);
    arr = (int*) malloc(num * sizeof(int));
    for(i = 0; i < num; i++) {
        scanf("%d", arr + i);
    }

    /* Write the logic to reverse the array. */
    int temp;
    for(i = 0; i < num/2; i++) {
        temp = arr[i];
        arr[i] = arr[num-1-i];
        arr[num-1-i] = temp;
    }

    for(i = 0; i < num; i++)
        printf("%d ", *(arr + i));
    return 0;
}
}

  • shyamganeshks
     + 0 comments
    /* Write the logic to reverse the array. */
    int temp;
    int len = num;
    for(i = 0;i < len; i++,len--){
        temp = arr[i];
        arr[i] = arr[len-1];
        arr[len-1]= temp;
    }

  • toanvatli9
     + 1 comment

    include

    include

    int main() { int num, arr, i; scanf("%d", &num); arr = (int) malloc(num * sizeof(int)); for(i = 0; i < num; i++) { scanf("%d", arr + i); }

    for(i = num-1; i >= 0; i--)
    printf("%d ", *(arr + i));
return 0;

    }

  • diamondebineze
     + 0 comments

    include

    int main() { int size; scanf("%d", &size); int arr[size]; for (int i = 0; i < size; i++) { scanf("%d", &arr[i]); } for (int i = size - 1; i >= 0; i--) { printf("%d ", arr[i]);

         }
      return 0; 

}

  • ravkapranap
     + 0 comments
    int num, *arr, i;
    scanf("%d", &num);
    arr = (int*) malloc(num * sizeof(int));
    for(i = 0; i < num; i++) {
        scanf("%d", arr + i);
    }
    /* Write the logic to reverse the array. */
    for(i = 0; i < (num/2); i++){
            arr[i]= arr[i] + arr[num-(i+1)];
            arr[num-(i+1)] = arr[i] - arr[num-(i+1)];
            arr[i] = arr[i] - arr[num-(i+1)];
    }
    for(i=0; i<num; i++)printf("%d ",arr[i]);