How to input array in c++

There are many ways to enter an array in C, the most commonly used ones include: using std::cin: enter the array elements one by one. Use array initializer: Initialize array elements directly. Using getline and isringstream: Read from a line of input and convert to an array.

How to enter an array in C

There are many ways to enter an array in C. The most common methods are listed below:

1. Use std::cin

int main() {
  int arr[10]; // 声明一个长度为 10 的数组

  // 使用 std::cin 输入数组元素
  for (int i = 0; i < 10; i++) {
    std::cin >> arr[i];
  }

  return 0;
}

2. Use an array initializer

int main() {
  // 使用数组初始化器创建数组
  int arr[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

  return 0;
}

3. Use getline

int main() {
  std::string input;
  std::getline(std::cin, input); // 从标准输入读取一行

  // 将输入字符串转换为数组
  std::istringstream iss(input);
  int arr[10];
  for (int i = 0; i < 10; i++) {
    iss >> arr[i];
  }

  return 0;
}

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