Following code will reverse the given number. #include int main() { int n, reversedNumber = 0, remainder; printf("Enter an integer: "); scanf("%d", &n); while(n != 0) { remainder = n%10; reversedNumber = reversedNumber*10 + remainder; n /= 10; } printf("Reversed Number = %d", reversedNumber); return 0 ..read more

Have you ever think about this? Can we have a ‘C’ program without any semicolon in it? Is that possible? Yes. Look at the code below: #include void main { if(printf(“Hello World”)){} } Output:  Hello World ..read more

Here’s the solution: #include #define decode(i,s,r,a,e,l) s##i##r##a #define begin decode(a,m,i,n,o,l) void begin() { printf(“No Main Function !!!”); } Does the above program run without main function? Yes, the above program runs perfectly fine even without a main function. Now, your question is “HOW? What’s the logic behind in it? How can we have a C program working without main()?”. Now, we’ll see how. Here we are using preprocessor directive #define with arguments to give an impression that the program runs without main. But in realty it runs with a hidden main function. The ..read more

Following code will print the pyramid of numbers. To get pyramid of stars, replace integer values by the symbol “*” Source Code: #include<stdio.h> #include<conio.h> void main() { int p,q,n=10,m; clrscr(); for(p=1;p<=n;p++) { for(q=0;q<n-p;q++) { printf(” “); } m = p; for(q=1;q<=p;q++) { if(m>9) m = m%10; printf(“%d “,m++); } m = m-2; for(q=1;q<p;q++) { printf(“%d “,m–); if(m<0) m = 0; } printf(“\n\n”); } getch(); } Output: 1 2 3 2 3 4 5 4 3 4 5 6 7 6 5 4 5 6 7 8 9 8 7 ..read more