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

Arrays Introduction

  • JChiquin + 2 comments

    That's because only with cout the loop will never end, so I add other constraints, when N will be 0 the loop will end (N is like an inverse iterator).

    Sorry my english

    • ness_eg + 0 comments

      thank you ^^

    • narutoitachi329 + 3 comments
      int main() {
  int n, i = 0;
  cin >> n;
  int a[n];
  for (; i < n; i++)
    cin >> a[i];
  for (; i >0; i--)
    cout << a[i- 1] <<" ";
  return 0;
}
      • JChiquin + 2 comments

        You shouldn't use arrays like that. In fact, a is initialized with the first value of n what is garbage, something like 39281233, because is initialized in compile time not execution time, for dinamic size you must use pointers and the keyword new or vector from std.

        • narutoitachi329 + 0 comments
          [deleted]
        • JChiquin + 0 comments

          Why does my comment have negative votes?

      • priyankavithani1 + 0 comments

        a[i-1]

        can you tell me how it is working?

      • anshup + 0 comments

        how this line is working i am not able to understand for (; i >0; i--) cout << a[i- 1] <<" ";