My Tutorials: C++

Showing posts with label C++. Show all posts

Showing posts with label C++. Show all posts

Wednesday, March 1, 2017

Write a c program for quick sort ?

C March 01, 2017

Write a c program for quick sort ?

Write a c program for quick sort ?

#include<stdio.h>
void quicksort(int [30],int,int);
int main()
{
int array[40],size,i;

printf("Enter size of the array: ");
scanf("%d",&size);

printf("Enter %d elements: ",size);
for(i=0;i<size;i++)
scanf("%d",&array[i]);
quicksort(x,0,size-1);
printf("Sorted elements: ");
for(i=0;i<size;i++)
printf(" %d",array[i]);
return 0;
}
void quicksort(int array[30],int first,int last)
{
int pivot,j,temp,i;
if(first<last)
{
pivot=first;
i=first;
j=last;
while(i<j)
{
while(array[i]<=array[pivot]&&i<last)
i++;
while(array[j]>array[pivot])
j--;
if(i<j)
{
temp=array[i];
array[i]=array[j];
array[j]=temp;
}
}

temp=array[pivot];
array[pivot]=array[j];
array[j]=temp;
quicksort(array,first,j-1);
quicksort(array,j+1,last);

}
}

Output:
Enter size of the array: 5
Enter 5 elements: 3 8 0 1 2
Sorted elements: 0 1 2 3 8

Write a c program for selection sort ?

C March 01, 2017

Write a c program for selection sort ?

Write a c program for selection sort ?
#include<stdio.h>
int main()
{

int n,i,j,temp,array[20];

printf("Enter total elements: ");
scanf("%d",&n);

printf("Enter %d elements: ",n);
for(i=0;i<n;i++)
scanf("%d",&array[i]);

for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if(array[i]>array[j])
{
temp=array[i];
array[i]=array[j];
array[j]=temp;
}
}
}

printf("After sorting is: ");
for(i=0;i<n;i++)
printf(" %d",array[i]);

return 0;
}

Output:
Enter total elements: 5
Enter 5 elements: 4 5 0 21 7
The array after sorting is: 0 4 5 7 21

Write a c program for insertion sort ?

C March 01, 2017

Write a c program for insertion sort ?

Write a c program for insertion sort ?

#include <stdio.h>
int main()
{
int n, a[100], c, d, temp;

printf("Enter number of elements\n");
scanf("%d", &n);
printf("Enter %d integers\n", n);
for (c = 0; c < n; c++)
{
scanf("%d", &a[c]);
}

for (c = 1 ; c <= n - 1; c++)
{
d = c;
while ( d > 0 && a[d] < a[d-1])
{
temp = a[d];
a[d] = a[d-1];
a[d-1] = temp;

d--;
}
}

printf("Sorted list in ascending order:\n");

for (c = 0; c <= n - 1; c++)
{
printf("%d\n", a[c]);
}

return 0;
}

Write a c program for bubble sort ?

C March 01, 2017

Write a c program for bubble sort ?

Write a c program for bubble sort ?

#include<stdio.h>
int main()
{
int array[100], n, i, j, temp = 0;

printf("Enter how many numbers you want:\n");
scanf("%d", &n);

printf("Enter the %d elements:\n", n);
for (i = 0; i < n; i++)
{
scanf("%d", &array[i]);
}

printf("\nThe given array is:\n");
for (i = 0; i < n; i++)
{
printf("\n%d", array[i]);
}
for (i = 0; i < n; i++)
{
for (j = i + 1; j < n; j++)
{
if (array[i] > array[j])
{
temp = array[i];
array[i] = array[j];
array[j] = temp;
}
}
}

printf("\n\n\n\t\tThe sorted array using Buble sort is:\n");
for (i = 0; i < n; i++)
{
printf("\n\t\t%d", array[i]);
}
return 0;
}

Write a c program to swap two numbers ?

C March 01, 2017

Write a c program to swap two numbers ?

Write a c program to swap two numbers ?

#include <stdio.h>
#include <conio.h>
int main()
{
int a, b, temp;
printf("Enter the value of x and y\n");
scanf("%d%d", &a, &b);

printf("Before Swapping\nx = %d\ny = %d\n",a,b);

temp = a;
a = b;
b = temp;

printf("After Swapping\nx = %d\ny = %d\n",a,b);

return 0;
}

Write a c program to swap two numbers without using third variable ?

C March 01, 2017

Write a c program to swap two numbers without using third variable ?

Write a c program to swap two numbers without using third variable ?

#include<stdio.h>
#include<conio.h>
int main()
{
int x, y;
printf("\nEnter value for num1 & num2 : ");
scanf("%d %d", &x, &y);
x = x + y;
y = x - x;
x = x - y;
printf("\nAfter swapping value of a : %d", x);
printf("\nAfter swapping value of b : %d", y);
return (0);
}

Output

Enter value for num1 & num2 : 20 10
After swapping value of a : 10

After swapping value of b : 20

Write a c program for swapping of two arrays ?

C March 01, 2017

Write a c program for swapping of two arrays ?

Write a c program for swapping of two arrays ?

#include<stdio.h>
int main()
{
int str1[100],str2[100],str3[100],i;
printf("Enter First array->");
for (i=0;i<100;i++)
scanf("%d",&str1[i]);
printf("\nEnter Second array->");
for (i=0;i<100;i++)
scanf("%d",&str2[i]);
printf("Arrays before swapping");
printf("\nFirst array->");
for (i=0;i<100;i++)
{
printf("%d",str1[i]);
}
printf("\nSecond array->");
for (i=0;i<100;i++)
{
printf("%d",str2[i]);
}
for (i=0;i<100;i++)
{

str3[i]=str1[i];
str1[i]=str2[i];
str2[i]=str3[i];
}
printf("\nArrays after swapping");
printf("\nFirst array->");
for (i=0;i<100;i++)
{
printf("%d",str1[i]);
}
printf("\nSecond array->");
for (i=0;i<100;i++)
{
printf("%d",str2[i]);
}
return 0;
}

C March 01, 2017

Write a c program for swapping of two string ?

Write a c program for swapping of two string ?

#include <stdio.h>
#include <string.h>
#include <malloc.h>
int main()
{
char f[100], str[100], *tmp;

printf("Enter the first string\n");
gets(f);

printf("Enter the second string\n");
gets(str);

printf("\nBefore Swapping\n");
printf("First string: %s\n",f);
printf("Second string: %s\n\n",str);

tmp = (char*)malloc(100);

strcpy(tmp,f);
strcpy(f,str);
strcpy(str,t);

printf("After Swapping\n");
printf("First string: %s\n",f);
printf("Second string: %s\n",str);

return 0;
}

Convert a string to ASCII in c ?

C March 01, 2017

Convert a string to ASCII in c ?

Convert a string to ASCII in c ?

#include <stdio.h>
#include<conio.h>
void main()
{
char string[200];
int n, c = 0;

printf("Enter the no of characters present in an array \n ");

scanf("%d", &n);

printf(" Enter the string of %d characters \n" , n);

scanf("%s", string);

while (c < n)

{

printf(" %c = %d\n", string[count], string[c] );

++ c ;

}

}

Tuesday, February 28, 2017

String copy without using strcpy in c ?

C February 28, 2017

String copy without using strcpy in c ?

String copy without using strcpy in c ?

#include <stdio.h>
#include <conio.h>
int main()
{
char str1[100], str2[100], i;

printf("Enter string str1: ");
scanf("%str",str1);

for(i = 0; str1[i] != '\0'; ++i)
{
str2[i] = str1[i];
}

s2[i] = '\0';
printf("String str2: %s", s2);

return 0;
}

How to compare two strings in c without using strcmp ?

C February 28, 2017

How to compare two strings in c without using strcmp ?

How to compare two strings in c without using strcmp ?

#include <stdio.h>
#include <stdlib.h>
int main()
{
char s1[5],s2[5];
int i,temp = 0;
printf("Enter the string1 value:\n");
gets(s1);
printf("\nEnter the String2 value:\n");
gets(s2);
for(i=0; (s1[i]!='\0')||(s2[i]!='\0'); i++)
{
if(s1[i] != s2[i])
{
temp = 1;
break;
}

}
if(temp == 0)
printf("Both strings are same.");
else
printf("Both strings not same.");
return 0;
}

String concatenation in c without using strcat ?

C February 28, 2017

String concatenation in c without using strcat ?

String concatenation in c without using strcat ?

#include<stdio.h>
#include<conio.h>
void main(void)
{
char s1[25],s2[25];
int i=0,k=0;
printf("\nEnter First String:");
gets(s1);
printf("\nEnter Second String:");
gets(s2);
while(s1[i]!='\0')
i++;
while(s2[k]!='\0')
{
s1[i]=s2[k];
j++;
k++;
}
s1[i]='\0';
printf("\nConcatenated String is %s",s1);
}

Reverse a string using recursion in c ?

C February 28, 2017

Reverse a string using recursion in c ?

Reverse a string using recursion in c ?

# include <stdio.h>
#include<conio.h>
void reverse(char *string)
{
if (*string)
{
reverse(string+1);
printf("%c", *string);
}
}
int main()
{
char array[] = "Asmit for Rahul";
reverse(array);
return 0;
}

Output:

timsA rof luhaR

WAP to reverse a string ?

C February 28, 2017

WAP to reverse a string ?

WAP to reverse a string ?

#include<stdio.h>
#include<string.h>
int main()

{
char string[50], temp;
int i, k= 0;

printf("\nEnter the string :");
gets(string);

i = 0;
k= strlen(string) - 1;
while (i < k)
{
temp = string[i];
string[i] = string[k];
string[k] = temp;
i++;
k--;
}

printf("\nReverse string is :%s", string);
return (0);
}

Out put

Enter the string : Asmit
Reverse string is : timsA

WAP to print the string from given character ?

C February 28, 2017

WAP to print the string from given character ?

WAP to print the string from given character ?

#include<string.h>
#include<stdio.h>
int main()
{
char *ptr;
char str[20],str1[1];
printf("\nplease enter a string: ");
scanf("%[^\n]",str);
fflush(stdin);
printf("\nplease enter character: ");
gets(str1);
ptr=strpbrk(str,str1);
printf("\nThe string from the given character is: %s",ptr);
return 0;
}

WAP which prints initial of any name ?

C February 28, 2017

WAP which prints initial of any name ?

WAP which prints initial of any name ?

#include<stdio.h>
#include<conio.h>
int main()
{
char string[200];
int i=0;
printf("Enter a string: ");
gets(string);
printf("%c", *string);
while(string[i] != '\0')
{
if(string[i] == ' ')
{
i++;
printf("%c", *(string + i));
}
i++;
}
return 0;
}

OUTPUT:-
Enter a string:
C Programming Simply

CPS

WAP to find the length of a string using pointer ?

C February 28, 2017

WAP to find the length of a string using pointer ?

WAP to find the length of a string using pointer ?

#include<stdio.h>
#include<stdio.h>
#include<conio.h>
void main()
{
char str[100];

char *p;

int length;

clrscr();

printf("Enter a string\n");

scanf("%s",str);

for(p=str;*p!='\0';p++);

length=p-str;

printf("Length of string is::%d",length);

getch();

}

6. WAP for concatenation two strings without using string.h header file ?

C February 28, 2017

6. WAP for concatenation two strings without using string.h header file ?

WAP for concatenation two strings without using string.h header file ?

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
main()
{
int n,i,c,flag,j;
c=1;
char string[100],a[100],ch;
printf("enter a string");
scanf("%s",string);
printf("%s",string);
n=strlen(string);
printf("%d\n",n);
a[0]=string[0];
for(i=1;i<n;i++)
{
flag=1;
ch=string[i];
for(j=0;j<=i;j++)
{
if(a[j]==ch)
flag=0;
}

if(flag==1)
{
c++;
a[i]=string[i];
}

}
printf("%d\n",count);
system("pause");
}

WAP to sort the characters of a string.

C February 28, 2017

WAP to sort the characters of a string.

WAP to sort the characters of a string?

#include<stdio.h>
#include<conio.h>
int main()
{
int i,k,n;
char string[20][20],temp[20];
puts("Enter the no. of string to be sorted");
scanf("%d",&n);
for(i=0;i<=n;i++)
gets(string[i]);
for(i=0;i<=n;i++)
for(k=i+1;j<=n;k++)
{
if(strcmp(string[i],string[k])>0)
{
strcpy(temp,string[i]);
strcpy(string[i],string[k]);
strcpy(string[k],temp);
}
}
printf("The sorted string\n");
for(i=0;i<=n;i++)
puts(string[i]);
return 0;
}

WAP to count the different types of characters in given string?

C February 28, 2017

WAP to count the different types of characters in given string?

WAP to count the different types of characters in given string?

#include <stdio.h>
int isvowel(char chk);
int main()
{
char text[1000], chk;
int count;
count = 0;
while((text[count] = getchar()) != '\n')
count++;
text[count] = '\0';
count = 0;
while ((chk = text[count]) != '\0')
{
if (isvowel(chk))
{
if((chk = text[++count]) && isvowel(chk))
{
putchar(text[count -1]);
putchar(text[count]);
putchar('\n');
}
}
else
++count;
}
return 0;
}
int isvowel(char chk)
{
if(chk == 'a' || chk == 'e' || chk == 'i' || chk == 'o' || chk == 'u')
return 1;
return 0;
}

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