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62 093
Obunachilar
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Postlar arxiv
62 093
144. Circular Link List.
#include<stdio.h>
#include<stdlib.h>
typedef struct Node {
int data;
struct Node *next;
} node;
void insert(node *pointer, int data)
{
node *start = pointer;
while (pointer->next != start)
{
pointer = pointer->next;
}
pointer->next = (node *)
malloc(sizeof(node));
pointer = pointer->next;
pointer->data = data;
pointer->next = start;
printf("%d entered.\n", data);
}
int find(node *pointer, int key)
{
node *start = pointer;
pointer = pointer->next;
while (pointer != start)
{
if (pointer->data == key)
{
return 1;
}
pointer = pointer->next;
}
return 0;
}
void delete(node *pointer, int data)
{
node *start = pointer;
while(pointer->next!=start &&
(pointer->next)->data != data)
{
pointer = pointer->next;
}
if(pointer->next==start)
{
printf("Element %d is not present in the list\n",data);
return;
}
node *temp;
temp = pointer->next;
printf("%d deleted.\n",data);
pointer->next = temp->next;
free(temp);
return;
}
void print(node *start, node *pointer)
{
if (pointer == start)
{
return;
}
printf("%d ", pointer->data);
print(start, pointer->next);
}
int main()
{
node *start, *temp;
start = (node *) malloc(sizeof(node));
temp = start;
temp->next = start;
printf("1. Insert\n");
printf("2. Delete\n");
printf("3. Print\n");
printf("4. Find\n");
while (1)
{
int query;
scanf("%d", &query);
if (query == 1)
{
int data;
scanf("%d", &data);
insert(start, data);
}
else if (query == 2)
{
int data;
scanf("%d", &data);
delete (start, data);
}
else if (query == 3)
{
printf("The list is ");
print(start, start->next);
printf("\n");
}
else if (query == 4)
{
int data;
scanf("%d", &data);
int status = find(start, data);
if (status)
{
printf("Element Found\n");
}
else
{
printf("Element Not Found\n");
}
}
}
}
@C_Codings
62 093
143. Program to allocate memory using malloc() and free memory using free().
#include<stdio.h>
#include<stdlib.h>
int main() {
int n, i, *ptr, sum = 0;
printf("Enter total number of elements : ");
scanf("%d", &n);
ptr = (int *) malloc(n * sizeof(int));
if (ptr == NULL) {
printf("Error! Memory not allocated.");
return 0;
}
printf("Enter elements of array : \n");
for (i = 0; i < n; ++i) {
scanf("%d", ptr + i);
sum += *(ptr + i);
}
printf("Elements are :\n");
for (i = 0; i < n; i++) {
printf("%d\n", ptr[i]);
}
free(ptr);
return 0;
}
@C_Codings
62 093
142. Program to concatenate two strings using pointer.
#include <stdio.h>
void concatenator(char *str, char *substr) {
while (*str)
str++;
while (*substr) {
*str = *substr;
substr++;
str++;
}
*str = '\0';
}
int main() {
char str[100], substr[100];
printf("Enter the source string : ");
gets(str);
printf("\nEnter string to concatenate : ");
gets(substr);
concatenator(str, substr);
printf("String after concatenation is \"%s\"\n", str);
return 0;
}
@C_Codings
62 093
141. WAP to multiply and add two complex numbers
Input :
5
-4
4
6
Output :
Sum is 9 + 2i
Product is 44 + 14i
#include<stdio.h>
#include<conio.h>
typedef struct {
int real;
int imag;
} complex;
void getdata (complex *);
void display (complex);
complex sum(complex,complex);
complex mult(complex,complex);
main() {
complex c1,c2,c3,c4;
getdata(&c1);
getdata(&c2);
c3=sum(c1,c2);
printf("Sum is ");
display(c3);
c4=mult(c1,c2);
printf("Product is ");
display(c4);
getch();
}
void getdata(complex *p) {
printf("Enter real ");
scanf("%d",&p->real);
printf("Enter imag ");
scanf("%d",&p->imag);
}
complex sum(complex c1,complex c2) {
complex t;
t.real=c1.real+c2.real;
t.imag=c1.imag+c2.imag;
return t;
}
complex mult(complex c1,complex c2) {
complex t;
t.real=c1.real*c2.real-c1.imag*c2.imag;
t.imag=c1.real*c2.imag+c2.real*c1.imag;
return t;
}
void display {
if(c.imag>=0)
printf("%d+%di\n",c.real,c.imag);
else
printf("%d%di\n",c.real,c.imag);
}
#program_by : @PLAUnit61398
62 093
140. Program to find day on a particular date
#include<stdio.h>
int isLeapYear(int year){
if(year%4==0){
if(year%100==0 && year%400!=0){
return 0;
}
else{
return 1;
}
}
else{
return 0;
}
}
int main() {
int year;
int refYear=1600, leap=0;
int diff, totalDays,day,month, oddDays;
int lYear[]={3,1,3,2,3,2,3,3,2,3,2,3};
int nYear[]={3,0,3,2,3,2,3,3,2,3,2,3};
char week[7][10]={"sunday",
"monday",
"tuesday",
"wednesday"
,"thursday"
,"friday",
"saturday"};
printf("Enter a date between 1600 to 3000\n");
scanf("%d%d%d",&day,&month,&year);
diff = year - refYear;
while(refYear < year){
if(isLeapYear(refYear))
leap++;
refYear++;
}
totalDays = leap*366 + (diff-leap)*365;
oddDays = totalDays%7;
if(isLeapYear(year)){
for(int i=0;i<month-1;i++){
oddDays+=lYear[i];
}
oddDays+=day%7;
}
else{
for(int i=0;i<month-1;i++){
oddDays+=nYear[i];
}
oddDays+=day%7;
}
printf("Day on %d/%d/%d ",day,month,year);
printf("%s",week[(5+oddDays)%7]);
return 0;
}
#program_by : @Vecto_r
62 093
139. Program to read multiline string using scanf.
#include<stdio.h>
int main(void) {
char str[100];
// reading multline string with '.' as a delimiter
scanf("%[^.]",str);
printf("%s",str);
return 0;
}
#program_by : @freakyLuffy
62 093
138. Program to split words from a string using strtok function.
#include <stdio.h>
#include<string.h>
int main(void) {
char str[]="Welcome to C language";
char *token=strtok(str," ");
while(token!=NULL)
{
printf("%s\n",token);
token=strtok(NULL," ");
}
return 0;
}
#program_by : @freakyLuffy
62 093
137. Program to check whether the number is palindrome or not using recursion.
#include<stdio.h>
int checkPalindrome(int);
int main() {
int n, sum;
printf("Enter a number : ");
scanf("%d",&n);
sum = checkPalindrome(n);
if(n == sum)
printf("%d is a palindrome", n);
else
printf("%d is not a palindrome", n);
return 0;
}
int checkPalindrome(int n) {
static int sum=0, r;
if(n != 0)
{
r = n % 10;
sum = sum * 10 + r;
checkPalindrome(n/10);
}
return sum;
}
@C_Codings
62 093
136. Binary search using recursion
#include<stdio.h>
int binary(int arr[], int n, int search, int l, int u);
int main()
{
int arr[10], i, n, search, c, l, u;
printf("Enter the size of an array : ");
scanf("%d", &n);
for (i = 0; i < n; i++)
{
printf("Enter the element %d : ", i+1);
scanf("%d", &arr[i]);
}
printf("Enter the number to be search: ");
scanf("%d", &search);
l = 0, u = n - 1;
c = binary(arr, n, search, l, u);
if (c == 0)
printf("Number not found.");
else
printf("Number found.");
return 0;
}
int binary(int arr[], int n, int search, int l, int u)
{
int mid, c = 0;
if (l <= u)
{
mid = (l + u) / 2;
if (search == arr[mid])
{
c = 1;
}
else if (search < arr[mid])
{
return binary(arr, n, search, l, mid - 1);
}
else
return binary(arr, n, search, mid + 1, u);
}
else
return c;
}
@C_Codings
62 093
135. Sieve of Eratosthenes : An algorithm to generate all the prime numbers within an range.
#include <stdio.h>
#define size 1000
int main (void)
{
int n;
scanf("%d",&n);
int arr[size]={0};
for(int i=2;i*i<=n;i++)
{
for(int j=i;i*j<=n;j++)
{
arr[i*j]=1;
}
}
for(int i=2;i<=n;i++)
{
if(!arr[i])
printf("%d ",i);
}
return 0;
}
#program_by : @freakyLuffy
62 093
134. Program to delete a node for a given element from linked list.
#include <stdio.h>
#include<stdlib.h>
typedef struct node {
int data;
struct node *next;
}Node;
int main(void)
{
Node*temp;
Node*start=NULL;
Node* p=NULL;
int n;
scanf("%d",&n);
while(n--)
{
temp=(Node *)malloc(sizeof(struct node));
scanf("%d",&temp->data);
temp->next=NULL;
if(start==NULL)
{
start=temp;
p=temp;
}
else
{
p->next=temp;
p=temp;
}
}
printf("Element to delete : ");
int ele; scanf("%d",&ele); printf("%d\n",ele);
Node*prev=start;
Node*cur=start;
while(cur!=NULL)
{
if(start->data==ele)
{
start=start->next;
}
if(cur->data==ele)
{
prev->next=cur->next;
free(cur);
break;
}
prev=cur;
cur=cur->next;
if(cur==NULL)
{
printf("Element doesn't exist!");
exit(0);
}
}
while(start!=NULL)
{
if(start->next!=NULL)
printf("%d->",start->data);
else
printf("%d",start->data);
start=start->next;
}
return 0;
}
#program_by : @freakyLuffy
62 093
133. Program for creating and displaying a linked list.
#include <stdio.h>
#include<stdlib.h>
typedef struct node {
int data;
struct node *next;
}Node;
int main(void)
{
Node*temp;
Node*start=NULL;
Node* p=NULL;
int n;
scanf("%d",&n);
while(n--)
{
temp=(Node *)malloc(sizeof(struct node));
scanf("%d",&temp->data);
temp->next=NULL;
if(start==NULL)
{
start=temp;
p=temp;
}
else
{
p->next=temp;
p=temp;
}
}
while(start!=NULL)
{
if(start->next!=NULL)
printf("%d->",start->data);
else
printf("%d",start->data);
start=start->next;
}
return 0;
}
#program_by : @freakyLuffy
62 093
132. Pattern
@ @
@ @ @ @
@ @ @
@ @ @
@ @ @ @
@ @ @ @ @
@ @ @
@ @ @ @ @
@ @ @ @
@ @ @
@ @ @
@ @ @ @
@ @
#include<stdio.h>
int main()
{
int n,x,y;
scanf("%d",&n);
if(n%2==0)
n=n+1;
for(y=3*n/2; y>=-3*(n/2); y--)
{
for(x=-3*(n/2); x<=3*(n/2); x++)
{
if((x>=-1*n/2 && x<=n/2) || (y>=-1*n/2 && y<=n/2))
{
if(x==y || x==-y)
printf("@ ");
else if((y<=0 || y>=n/2) && (x+y==n-1))
printf("@ ");
else if((y>=0 || y<=-n/2) && (x+y==1-n))
printf("@ ");
else if((x<=0 || x>=n/2) && (x-y==n-1))
printf("@ ");
else if((x>=0 || x<=-n/2) && (x-y==1-n))
printf("@ ");
else
printf(" ");
}
else
{
if(x+y==(n-1)*2)
printf("@ ");
else if(x+y==(1-n)*2)
printf("@ ");
else if(x-y==(n-1)*2)
printf("@ ");
else if(x-y==(1-n)*2)
printf("@ ");
else
printf(" ");
}
}
printf("\n");
}
}
#program_by : @I_am_liberal62 093
131. Pattern
5 5
54 45
543 345
5432 2345
543212345
5432 2345
543 345
54 45
5 5
#include <stdio.h>
int main()
{
int i,j,n;
scanf("%d",&n);
for(i=n;i>=1;i--) {
for(j=n;j>=1;j--) {
if(j>=i)
printf("%d",j);
else
printf(" ");
}
for(j=2;j<=n;j++) {
if(j>=i)
printf("%d",j);
else
printf(" ");
}
printf("\n");
}
//down
for(i=2;i<=n;i++) {
for(j=n;j>=1;j--) {
if(j>=i)
printf("%d",j);
else
printf(" ");
}
for(j=2;j<=n;j++) {
if(j>=i)
printf("%d",j);
else
printf(" ");
}
printf("\n");
}
}
#program_by : @shubhamkkc62 093
130. Swastika pattern.
* * * * *
* *
* *
* * * * * * *
* *
* *
* * * * *
#include<stdio.h>
int main() {
int n;
scanf("%d",&n);
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
{
if(i==1)
{
if(j>(n/2)||j==1)
printf("* ");
else
printf(" ");
}
else if(i==n)
{
if(j<=(n/2+1)||j==n)
printf("* ");
else
printf(" ");
}
else if(i==(n+1)/2)
printf("* ");
else if(i<=n/2&&i!=1)
{
if(j==1||j==(n+1)/2)
printf("* ");
else
printf(" ");
}
else
{
if(j==n||j==(n+1)/2)
printf("* ");
else
printf(" ");
}
}
printf("\n");
}
return 0;
}
#program_by : @freakyLuffy62 093
129. Pattern
1
8 2
14 9 3
19 15 10 4
23 20 16 11 5
26 24 21 17 12 6
28 27 25 22 18 13 7
#include<stdio.h>
int main() {
int n,i,j,k,l=1,d;
scanf("%d",&n);
for(i=0;i<n;++i)
{
for(j=i-1;j>=0;--j)
{
d=n-1;
l=i+1;
for(k=0;k<=j;++k)
{
l+=d;
d--;
}
printf("%d ",l);
}
printf("%d\n",i+1);
}
return 0;
}
#program_by : @Sherry060199
62 093
128. Pattern
1
3 2
4 5 6
10 9 8 7
11 12 13 14 15
21 20 19 18 17 16
#include<stdio.h>
int main()
{
int i,j,k,l,n;
scanf("%d",&n);
for(k=i=1;i<=n;i++)
{
l=k+i-1;
for(j=1;j<=i;j++)
{
if(i%2==1)
printf("%d ",k);
else
printf("%d ",l);
k++;
l--;
}
printf("\n");
}
return 0;
}
#program_by : @aShish_bhushan62 093
127. Program for infix to postfix conversion.
#include<stdio.h>
char ifix[200],pfix[200],stack[100];
int p=0,s=0,i=0;
void fun()
{
if(ifix[i]==')')
{
s--;
while(stack[s]!='(')
pfix[p++]=stack[s--];
}
if(ifix[i]=='+' || ifix[i]=='-')
{
if(!s)
stack[s++]=ifix[i];
else if(stack[s-1]=='(')
stack[s++]=ifix[i];
else
{
s--;
while(s!=-1 && stack[s]!='(')
{
pfix[p++]=stack[s--];
}
stack[++s]=ifix[i];
s++;
}
}
}
int main()
{
printf("Enter your infix expression(using operators +, -, %%, /, *) : ");
scanf("%s",ifix);
for(i;ifix[i]!='\0';i++)
{
if(ifix[i]!='*' && ifix[i]!='/' && ifix[i]!='-' && ifix[i]!='+' && ifix[i]!='(' && ifix[i]!=')' && ifix[i]!='%')
pfix[p++]=ifix[i];
else if(ifix[i]=='(' || ifix[i]=='*' || ifix[i]=='/' || ifix[i]=='%')
stack[s++]=ifix[i];
else
fun();
}
if(ifix[i]=='\0')
{
if(s)
{
s--;
while(s!=-1)
{
if(stack[s]==')' || stack[s]=='(')
s--;
pfix[p++]=stack[s--];
}
}
pfix[p]='\0';
}
printf("The postfix expression is : %s",pfix);
return 0;
}
//used by taking into considering operators +, -, /, *, %, (, )
#program_by : @sidg28
62 093
126. Program to sort array using Bubble Sort.
#include<stdio.h>
#include<conio.h>
void main()
{
int total, element[100], i, j, temp;
clrscr();
printf("Enter total number of elements :");
scanf("%d", &total);
for(i=0; i<total; i++)
{
printf("Enter element no%d :", i+1);
scanf("%d", &element[i]);
}
for (i=0; i<(total - 1); i++)
{
for (j = 0; j < total - 1; j++)
{
if (element[j] > element[j + 1])
{
temp = element[j];
element[j] = element[j + 1];
element[j + 1] = temp;
}
}
}
printf("\nSorted list in ascending order :");
for (i = 0; i < total; i++)
{
printf("\n%d", element[i]);
}
getch();
}
//To sort in descending order, use < (less than) in if condition.
@C_Codings
62 093
125. Program to sort array using Selection Sort.
#include<stdio.h>
#include<conio.h>
void main()
{
int array[20], n, i, j, pos, temp;
clrscr();
printf("Enter total number of elements :");
scanf("%d", &n);
for (i = 0; i < n; i++)
{
printf("\nEnter element number %d : ", i+1);
scanf("%d", &array[i]);
}
for (i = 0; i < (n - 1); i++)
{
pos = i;
for (j = i + 1; j < n; j++)
{
if (array[pos] > array[j])
pos = j;
}
if (pos != i)
{
temp = array[i];
array[i] = array[pos];
array[pos] = temp;
}
}
printf("\nSorted elements :");
for (i = 0; i < n; i++)
printf("%d\n", array[i]);
getch();
}
@C_Codings
