Написать программу обращения слова

#include <iostream>
#include <chrono>
#pragma warning(disable:4996)
using namespace std::chrono;
 
 
int main()
{
    high_resolution_clock::time_point t1;
    high_resolution_clock::time_point t2;
    duration<double>time_span;
    
char word[]{ "stackoverflow.com/questions/49090366/how-to-convert-stdchronohigh-resolution-clocknow-to-milliseconds-micros" };
 
t1 = high_resolution_clock::now();
    
    for (int i = 0; i < 100001; ++i) {
 
        char *word_ptr = word;
        char *ln_ptr{ word + std::strlen(word) };
        while (true) {
            bool end{ false };
            if (++word_ptr >= --ln_ptr)end = true;
            char tmp = *(word_ptr - 1);
            *(word_ptr - 1) = *(ln_ptr);
            *(ln_ptr) = tmp;
            if (end)break;
        }
    }
    
    t2 = high_resolution_clock::now();
time_span = duration_cast<duration<double>>(t2 - t1);
unsigned int sec = (unsigned short)floor(time_span.count());
 
std::cout << "It took me: " << time_span.count() << " seconds.\n";
        
        std::printf("%s", word);
    std::getchar();
        return 0;
}

std::string s{ "stackoverflow.com/questions/49090366/how-to-convert-stdchronohigh-resolution-clocknow-to-milliseconds-micros" };
 
    t1 = high_resolution_clock::now();
    
    for (int i = 0; i < 100001; ++i) {
 
        
        std::reverse(s.begin(), s.end());
    }
    
    t2 = high_resolution_clock::now();
time_span = duration_cast<duration<double>>(t2 - t1);
unsigned int sec = (unsigned short)floor(time_span.count());
 
std::cout << "It took me: " << time_span.count() << " seconds.\n";
        
        std::printf("%s", s.c_str());

 std::string word{ "stackoverflow.com/questions/49090366/how-to-convert-stdchronohigh-resolution-clocknow-to-milliseconds-micros" };
    
 
    t1 = high_resolution_clock::now();
    
    for (int i = 0; i < 100001; ++i) {
 
        int n = word.length();
        for (int i = 0; i < n / 2; i++) {
            std::swap(word[i], word[n - i - 1]);
        }
    }
    
    t2 = high_resolution_clock::now();
time_span = duration_cast<duration<double>>(t2 - t1);
unsigned int sec = (unsigned short)floor(time_span.count());