1. Palindrome Number A number is a palindrome if it reads the same backward as forward. #include <stdio.h> int main() { int n, reversed = 0, remainder, original; printf("Enter an integer: "); scanf("%d", &n); original = n; while (n != 0) { remainder = n % 10; reversed = reversed * 10 + remainder; n /= 10; } if (original == reversed) printf("%d is a palindrome.", original); else printf("%d is not a palindrome.", original); return 0; } output Enter an integer: 1 1 is a palindrome. === Code Execution Successful === 2a Pattern 1: The Vertical Bar (Pipe) Pattern This pattern uses the | character. Plaintext | | | | | | | | | | | | | | | C # include <stdio.h> int main () { int i, j; for (i = 1 ; i <= 5 ; i++) { for (j = 1 ; j <= i; j++) { printf ( "| " ); } printf ( "\n" ); } ...
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