如何在C ++中快速反转字符串?
在本节中,我们将看到如何使用C++快速反转字符串。为了反转,算法库中有一个内置函数,称为reverse()
。此函数采用容器的开始和结束指针,然后反转元素。
Input: A number string “Hello World” Output: “dlroW olleH”
算法
Step 1:Take a string Step 2: reverse it using reverse() function Step 3: Print the result. Step 4: End
范例程式码
#include<iostream> #include<algorithm> using namespace std; main() { string my_str = "This is a string to be reversed"; cout << "Initial state of this string: " << my_str << endl; //reverse using the reverse() function for reversing a string reverse(my_str.begin(), my_str.end()); cout << "Final state of this string: " << my_str; }
输出结果
Initial state of this string: This is a string to be reversed Final state of this string: desrever eb ot gnirts a si sihT