mysi...
Thursday, 22 October 2015
Sunday, 4 October 2015
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October
4
Write a C program to print all permutations of a given string
A permutation, also called an “arrangement number” or “order,” is a
rearrangement of the elements of an ordered list S into a one-to-one
correspondence with S itself. A string of length n has n! permutation.
Below are the permutations of string ABC.
ABC, ACB, BAC, BCA, CAB, CBA
Here is a solution using backtracking.
// C program to print all permutations with duplicates allowed
#include <stdio.h>
#include...
October
4
programe to find date and time of system
#include <time.h>
#include <stdio.h>
int main(void)
{
time_t mytime;
mytime = time(NULL);
printf(ctime(&mytime));
return 0;
}
The string that is returned will have the following format:
Www Mmm dd hh:mm:ss yyyy
Www = which day of the week.
Mmm = month in letters.
dd = the day of the month.
hh:mm:ss = the time in hour, minutes, seconds.
yyyy = the year.
Output example:
Tue Feb 26 09:01:47 2009...
Thursday, 1 October 2015
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October
1
c programe to count no of set bit in an integer
#anki
#include<stdio.h>
void main(){ int i,count=0; printf("enter the value"); scanf("%d",&i); while(i) { if((i & 1)==1) count++; i=i>>1; }
printf("count =%d",count);
getch(); ...
Thursday, 24 September 2015
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September
24
C Program to display current date
#include <dos.h>
#include <stdio.h>
int main(void)
{
struct date d;
getdate(&d);
printf(“The current year is: %d\n”, d.da_year);
printf(“The current day is: %d\n”, d.da_day);
printf(“The current month is: %d\n”, d.da_mon);
return 0;...
September
24
C Program to Set / Change current system date
#include <stdio.h>
#include <dos.h>
int main(void)
{
struct time t;
gettime(&t);
printf(“The current hour is: %d\n”, t.ti_hour);
printf(“The current min is: %d\n”, t.ti_min);
printf(“The current second is: %d\n”, t.ti_sec);
/* Add one to the hour,minute & sec struct element and then call settime */
t.ti_hour++;
t.ti_min++;
t.ti_sec++;
settime(&t);
printf(“The current hour is: %d\n”, t.ti_hour);
printf(“The current min is: %d\n”, t.ti_min);
printf(“The current second is: %d\n”, t.ti_sec);
return 0;
...
Wednesday, 23 September 2015
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September
23
Enter and print details of n employees using structures and dynamic memory allocation
Enter and print details of n employees using structures and dynamic memory allocation
This
program is used to show the most basic use of structures. The structure
is made of a character array name[], integer age and float salary.
We’ll make an array of the structure for the employees. We’ll also use
dynamic memory allocation using malloc. You can also use a linked list
to the same which is a better option. Let’s check the code.
?
#include
#include
typedef struct{ //structure of emp
char name[30];
int age;
float salary;
}emp;
int main(){
int n,i;
emp *employee;
printf("Enter no of...
September
23
Patterns (one of their favorites)
Patterns (one of their favorites)
If
the interviewer asks you a pattern and you don’t know how to do that
you are screwed big time. Often you might make a very simple mistake
which the interviewer was actually looking for. Here we’ll find out how
to print this pattern
?
1
2
3
4
5
A B C D E D C B A
A B C D C B A
A B C B A
A B A
A
And here is the code.
?
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
//Printing pattern
#include
#include
int main(){
int...
Tuesday, 15 September 2015
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September
15
easiest way to sort
#include <stdio.h>
#include <stdlib.h>
int values[] = { 88, 56, 100, 2, 25 };
int cmpfunc (const void * a, const void * b)
{
return ( *(int*)a - *(int*)b );
}
int main()
{
int n;
printf("Before sorting the list is: \n");
for( n = 0 ; n < 5; n++ )
{
printf("%d ", values[n]);
}
qsort(values, 5, sizeof(int), cmpfunc);
printf("\nAfter sorting the list is: \n");
for( n = 0 ; n < 5; n++ )
{
printf("%d ", values[n]);
}
return(0);
}
output
Before sorting the list is:
88 56 100 2 25
After sorting the list is:
2 25 56 88 100...
Friday, 11 September 2015
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September
11
number of ways a particular no can formed..
#include<stdio.h>
// Returns the count of ways we can sum S[0...m-1] coins to get sum nint count( int S[], int m, int n ){ // If n is 0 then there is 1 solution (do not include any coin) if (n == 0) return 1; // If n is less than 0 then no solution exists if (n < 0) return 0; // If there are no coins and n is greater than 0, then no solution exist if (m <=0 && n >= 1) return 0; ...
Monday, 31 August 2015
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August
31
C Program to delete a file.
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
void main()
{
int status;
char name[25];
clrscr();
printf("Enter the name of file you want to delete\n");
gets(name);
status=remove(name);
if(status==0)
{
printf("%s file deleted successfully.\n",name);
}
else
{
printf("Unable to delete the file\n");
}
getch();
}...
August
31
C Program to merge 2 files
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
void main()
{
FILE *fs1,*fs2,*ft;
char ch,file1[20],file2[20],file3[20];
clrscr();
printf("Enter name of first file\n");
gets(file1);
printf("Enter name of second file\n");
gets(file2);
printf("Enter name of file which'll store contents:\n");
gets(file3);
fs1=fopen(file1,"r");
fs2 = fopen(file2,"r");
if(fs1==NULL || fs2==NULL )
{
printf("Error opening file\n");
...
August
31
C Program to count characters, lines, spaces & tabs in a file
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
void main()
{
FILE *fp;
char a[20];
int nol=0,not=0,nob=0,noc=0;
char c;
clrscr();
printf("Enter the name of File:\n");
gets(a);
if((fp=fopen(a,"r"))==NULL)
{
printf("File dosen't exist.");
}
else
{
while(1)
{
c=fgetc(fp);
if(c==EOF)
break;
noc++;
if(c==' ')
nob++;
if(c=='\n')
nol++;
if(c=='\t')
not++;
}
}
fclose(fp);
...
Saturday, 29 August 2015
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August
29
How to find size of integer data type without using sizeof operator in c programming language
How
to find size of integer data type without using sizeof operator in c
programming language
#include<stdio.h>
int main(){
int *ptr = 0;
ptr++;
printf("Size of int data type:
%d",ptr);
return 0;
...
August
29
How to read STRING FROM text file by c program
#include<stdio.h>
int main(){
char str[70];
FILE *p;
if((p=fopen("string.txt","r"))==NULL){
printf("\nUnable t open file
string.txt");
exit(1);
}
while(fgets(str,70,p)!=NULL)
puts(str);
fclose(p);
return 0;
}
...
August
29
COPY DATA FROM ONE FILE TO ANOTHER FILE USING C PROGRAM
#include<stdio.h>
int main(){
FILE *p,*q;
char file1[20],file2[20];
char ch;
printf("\nEnter the source file name to be copied:");
gets(file1);
p=fopen(file1,"r");
if(p==NULL){
printf("cannot open %s",file1);
exit(0);
}
printf("\nEnter the destination file name:");
gets(file2);
q=fopen(file2,"w");
if(q==NULL){
printf("cannot open %s",file2);
exit(0);
}
while((ch=getc(p))!=EOF)
putc(ch,q);
printf("\nCOMPLETED");
fclose(p);
fclose(q);
return...
August
29
C code which prints initial of any name
C code which prints initial of any name
#include<stdio.h>
int main(){
char str[20];
int i=0;
printf("Enter a string: ");
gets(str);
printf("%c",*str);
while(str[i]!='\0'){
if(str[i]==' '){
i++;
printf("%c",*(str+i));
}
i++;
}
return 0;
}
Sample output:
Enter a string: ANKITHA GOWDA
AG...
August
29
Program for sorting of string in c language
Program
for sorting of string in c language
#include<stdio.h>
int main(){
int i,j,n;
char str[20],temp[20];
puts("Enter the no. of string to be sorted");
scanf("%d",&n);
for(i=0;i<=n;i++)
gets(str[i]);
for(i=0;i<=n;i++)
for(j=i+1;j<=n;j++){
if(strcmp(str[i],str[j])>0){
strcpy(temp,str[i]);
strcpy(str[i],str[j]);
...
August
29
Write a c program to find largest among three numbers using conditional operator
Write
a c program to find largest among three numbers using conditional operator
#include<stdio.h>
int main(){
int a,b,c,big;
printf("\nEnter 3 numbers:");
scanf("%d %d %d",&a,&b,&c);
big=(a>b&&a>c?a:b>c?b:c);
printf("\nThe biggest number is: %d",big);
return 0;
...
August
29
Write a c program to find largest among three numbers using binary minus operator
Write a c program to find largest among three numbers using binary minus operator.
#include<stdio.h>
int main(){
int a,b,c;
printf("\nEnter
3 numbers: ");
scanf("%d %d
%d",&a,&b,&c);
if(a-b>0
&& a-c>0)
printf("\nGreatest
is a :%d",a);
else
if(b-c>0)
printf("\nGreatest
is b :%d",b);
...
August
29
C program to display ASCII values
Printing
ascii value using c program
C code for
ASCII table
C program to display ASCII values
#include<stdio.h>
int main(){
int i;
for(i=0;i<=255;i++)
printf("ASCII value of character
%c: %d\n",i,i);
return 0;
}
Output:
ASCII value of character : 0
ASCII value of character ☺: 1
ASCII value of character ☻: 2
ASCII value of character ♥: 3
ASCII value of character ♦: 4
ASCII value of character ♣: 5
ASCII value of character ♠: 6
ASCII value of character :...
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