Program to print out numbers separated by stars with the occurrence defined by the number printed.

This will print out something like this
1
2*2
3*3*3
4*4*4*4
and then the reverse image.
If you have any doubt, please do ask.

#include<stdio.h>
main()
{
int i=1,j=2,z=4,k;
printf("%d\n",i);
for(k=0;k<3;k++)
{
for(i=2;i<z-1;i++)
{
printf("%d*",j);
}
printf("%d\n");
j++;
z++;
}
j=4;
for(k=0;k<3;k++)
{
for(i=2;i<z-2;i++)
{
printf("%d*",j);
}
printf("%d\n");
j--;
z--;
}
printf("%d",1);
}

Factorial program of a number

Simple C program to find factorial of a number. If you need help please feel free to ask

#include <stdio.h> main() {int fact,n; printf("enter a number\n"); scanf("%d",&n); for(fact=1;n>0;n--) fact=fact*n; printf("factorial of the number is %d\n",fact); }

Program to check whether a number is a palindrome.

Program to find if a number is a palindrome. One of the most basic programs for any CSE student to learn. Comment below if you need help

#include<stdio.h>
void main()
{
int x,num,sum=0,rem;
printf("enter the number");
scanf("%d",&num);
x=num;
while(num>0)
{
rem=num%10;
sum=(sum*10)+rem;
num=num/10;
}
if(sum==x)
printf("palindrome");
else
printf("no");
}

Pascal's Triangle Program

This is Pascal's triangle program. Was probably one of the hardest programs I had during my second year. But looking back, its not as hard as it seems. For those who have trouble with this program, I suggest you to write it down, step by step with pencil and paper to see how the program works. If you need help, feel free to ask.

#include<stdio.h>
main()
{
int d,i,j,n,a[50],k,b[50];
printf("enter limit");
scanf("%d",&n);
d=n;
for(i=0;i<n;i++)
{
a[0]=1;
a[i]=1;
for(j=1;j<i;j++)
{
a[j]=b[j-1]+b[j];
}
for(k=0;k<(d-1);k++)
{
printf(" ");
}
d--;
for(k=0;k<=i;k++)
{
printf("%d",a[k]);
printf(" ");
}
for(k=0;k<=i;k++)
printf("\n");
for(k=0;k<=i;k++)
b[k]=a[k];
}
}

Program to count number of occurrences of a word in a sentence.

Simple C program to count the number of occurrences of a word in a sentence. If you need help, feel free to ask.

#include<stdio.h>
#include<string.h>
main()
{
  int len,c=0,i=0,j=0,ans=0;
  char str1[50],str2[20],new[20];
  printf("\n enter the text: ");
  gets(str1);
  printf("\n enter the word: ");
  gets(str2);
  len=strlen(str1);
  for(i=0;i<=len;i++)
   {
     if(str1[i]!=' ')
      {
       new[j]=str1[i];
       j++;
      }
     if(str1[i]==' '||str1[i]=='\0')
       {
           new[j]='\0';
           j=0;
           ans=strcmp(new,str2);
           if(ans==0)
             c++;
        }
    }
   printf("\n the number of occurence is %d\n",c);
}