c++ - 旋转数组 :Segmentation Fault (SIGSEGV)

Question

Given an array of N size. The task is to rotate array by d elements where d is less than or equal to N.

Constraints: 1 ≤ T ≤ 200 1 ≤ N ≤ 200 1 ≤ A[i] ≤ 1000

Example input:

1
5
1 2 3 4 5
2

Output

3 4 5 1 2

我编写的程序似乎是合法的，但是当我尝试运行它时出现了段错误。我什至运行了上面的例子，我得到了正确的输出。 来源是GeeksforGeeks: Rotating and Array .

#include <bits/stdc++.h>
using namespace std;

int main() {
  int test_case, numb, from, arr[200];

  cin >> test_case;
  while (test_case--) {
    cin >> numb;

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

    cin >> from;
    for (int i = from; i < numb; i++) {
      cout << arr[i] << " ";
    }
    for (int j = 0; j < from; j++) {
      cout << arr[j] << " ";
    }

    cout << "\n";
  }
  return 0;
}

我的代码需要哪些更改？我该怎么做才能避免将来出现此类错误？ click_to_see_segment_fault

Answer 1

刚刚在 Rotating an Array | Geek for Geeks 上提交了您的确切代码(问题中给出的站点)。它工作完美，没有遇到运行时错误。