//Soloution to problem 1 in Python 3 stir = input() newStr = "" i=0 j=len(stir)-1 while(i

public class PopulateIn3rdArray { public static void main (String[] args) { char[] ch1 = {'1', '3', '5', '7', '9'}; char[] ch2 = {'2', '4', '6', '8', '0'}; char[] ch3 = new char[ch1.length + ch2.length]; int a = 0, b = 0; for(int i = 0; i < ch3.length;) { ch3[i++] = ch1[a++]; // if(i < ch3.length) ch3[i++] = ch2[b++]; } System.out.println(ch3); } }

isAlphanumeric = ch => { return (ch >= "a" && ch = "A" && ch { let arr = ["a", ",", "b", "$", "c"]; for (let i = 0, k = arr.length - 1; i++, k--; i < arr.length) { if (this.isAlphanumeric(arr[i]) && this.isAlphanumeric(arr[k])) { let temp = arr[k]; arr[k] = arr[i]; arr[i] = temp; } } console.log(arr); };

// C++ program to reverse a string // with special characters #include using namespace std; // Returns true if x is an aplhabatic // character, false otherwise bool isAlphabet(char x) { return ( (x >= 'A' && x = 'a' && x <= 'z') ); } void reverse(char str[]) { // Initialize left and right pointers int r = strlen(str) - 1, l = 0; // Traverse string from both ends until // 'l' and 'r' while (l < r) { // Ignore special characters if (!isAlphabet(str[l])) l++; else if(!isAlphabet(str[r])) r--; else // Both str[l] and str[r] are not spacial { swap(str[l], str[r]); l++; r--; } } } // Driver code int main() { char str[] = "a!!!b.c.d,e'f,ghi"; cout << "Input string: " << str << endl; reverse(str); cout << "Output string: " << str << endl; return 0; }