CODETALK

#include<stdio.h> #include<string.h> #include<conio.h> void main() { char string[50],reverse[50]; int i; printf("enter the string\t"); gets(string); strcpy(reverse,string); strrev(reverse); i=stricmp(reverse,string); if(i==0) printf("the string entered is a palindrome"); else printf("the enterted string is not a palindrome."); getch(); }

#include<stdio.h> int binarysearch(int list[],int low,int high,int key); void main() { int list[20],num,i,key,low,high,index; printf("enter the number of elements(max 20)\t"); scanf("%d",&num); printf("enter the elements in ascending order"); for(i=0;i<num;i++) scanf("%d",&list[i]); printf("enter the key that u want to search"); scanf("%d",&key); index=binarysearch(list,0,num-1,key); if (index==-1) printf("does not exist in the list"); else printf("exists at the location %d",index+1); } int binarysearch(int list[],int low,int high,int key) { int mid; if(low==high) { if(list[low]==key) return low; else return -1; } else { mid=(low+high)/2; if(list[mid]==key) return mid; else if(list[mid]>key) return binarysearch(list,low,mid-1,key); else return binarysearch(list,mid+1,high,key); } } NOTE-  i have compiled this program in  codeblocks  if u do i

#include<stdio.h> #include<malloc.h> void main() { int *array,size,i; printf("enter the size of the array"); scanf("%d",&size); array=(int*)malloc(size*sizeof(int)); printf("enter the elements"); for(i=0;i<size;i++) scanf("%d",&array[i]); for(i=size-1 ;i>=0;i--) printf("%d",array[i]); } NOTE-  i have compiled this program in  codeblocks  if u do it in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last

#include<stdio.h> void main() { int a; scanf("%d",&a); if((a%2)==0) printf("is an even no"); if((a%2)!=0) printf("it is an odd number"); } NOTE-  i have compiled this program in  codeblocks  if u do it in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last

A A B A B C A B C D A B C D E #include<stdio.h> void main() { int i,j; for(i=65;i<=70;i++) {   {    for(j=65;j<=i;j++)    printf("%c ",j);    }  printf("\n"); } } NOTE-  i have compiled this program in  codeblocks  if u do it in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last

#include<stdio.h> void main() { int a,b,c,d,e,f,i; scanf("%d%d%d",&a,&b,&c); for(i=a;i>=1;i--) {   d=a%i;   e=b%i;   f=c%i;  if((d==0)&&(e==0)&&(f==0))  {  printf("the GCD(greatest common divisor) of the numbers is=%d",i);   break;  }  } } NOTE-  i have compiled this program in  codeblocks  if u do it in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last.

* # # * * * # # # # * *  * * * # # # # # # #include<stdio.h> void main() { int i,j,n; printf("enter the value of n"); scanf("%d",&n); for(i=1;i<=n;i++)  {    {     if((i&1)==0)       {        for(j=1;j<=i;j++)        printf("# ");        }      else       {        for(j=1;j<=i;j++)        printf("* ");        }      }   printf("\n");   } } NOTE-  i have compiled this program in  codeblocks  if u do it in turbo c++  use   conio.h   header file in the beginning  and  getch()   a the  last.

#include<stdio.h> void main() { int array1[10][10],array2[10][10],array3[10][10],array4[10][10],i,j,m,n,b=0; printf("enter the size of the array"); scanf("%d%d",&m,&n); printf("enter the elements of array1"); for(i=0;i<m;i++) for(j=0;j<n;j++) scanf("%d",&array1[i][j]); printf("enter the elements of array2"); for(i=0;i<m;i++) for(j=0;j<n;j++) scanf("%d",&array2[i][j]); for(i=0;i<m;i++) for(j=0;j<n;j++) array3[i][j]=array1[i][j]+array2[i][j]; printf("the elements of matrices after adding the two matrix are\n"); for(i=0;i<m;i++) { for(j=0;j<n;j++) printf("%d\t",array3[i][j]); printf("\n"); } for(i=0;i<m;i++) b=b+array3[i][i]; printf("the sum of principal diagonal of the square mattrix is=%d",b); for(i=0;i<m;i++) for(j=0;j<m;j++) if(i<=j) array4[i][j]=array3[i][j]; else array4[i][j]=0; printf("\

#include<stdio.h> void main() { int year,i,count=0,sub; printf("enter the year after 2001 for which u want the day"); scanf("%d",&year); for(i=2001;i<year;i++) { if(((i%4==0)&&(i%100!=0))||(i%400==0)) {     printf("leap year%d",i); count=count+1; } } printf("\nthe value of count is=%d\n",count); sub=year-2001; printf("%d",sub); sub=sub+count; printf("\nthe value of sub is=%d\n",sub); for(sub;sub>7;sub=sub-7); printf("\nthe value of sub is=%d\n",sub); switch(sub) { case 1: printf("tuesday"); break; case 2: printf("wednesday"); break; case 3: printf("thursday"); break; case 4: printf("friday"); break; case 5: printf("saturday"); break; case 6: printf("sunday"); break; case 7: printf("monday"); break; } } NOTE-  i have compiled this program in codeblocks if u do it in turbo c++  use  conio.h   header file in the beginning  a