如何反转 C++ 向量?

2021-12-21 00:00:00 vector c++ stl std

C++ 中是否有内置的向量函数来反转向量?

Is there a built-in vector function in C++ to reverse a vector in place?

或者你只需??要手动完成?

Or do you just have to do it manually?

推荐答案

algorithm 标题中有一个函数 std::reverse 用于此目的.

There's a function std::reverse in the algorithm header for this purpose.

#include <vector>
#include <algorithm>

int main() {
  std::vector<int> a;
  std::reverse(a.begin(), a.end());
  return 0;
}

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