Question

Define a function to check if a C-String is symmetric. A string is called symmetric if the
first half sequence of its characters mirrors the second half. For example, all the strings
“ABCCBA”, “ABCBA”, and “MOM” are symmetric. (In C++)

Answer 1

#include <iostream>
#include <cstring>
using namespace std;

bool is_symmetric(char *string) {
    int len = strlen(string), i;
    for (i = 0; i < len / 2; ++i) {
        if (string[i] != string[len-i-1]) {
            return false;
        }
    }
    return true;
}

int main() {
    char str[100];
    cout << "Enter a string: ";
    cin.getline(str, 100);
    if (is_symmetric(str)) {
        cout << str << " is symmetric" << endl;
    } else {
        cout << str << " is not symmetric" << endl;
    }
    return 0;
}