C Program to add two polynomials using structures.

C Program to add two polynomials using structures. Structure is a c composite data type, in which we can define all the data types under the same name or object. Size of the Structure is the size of all data types, plus any internal padding. the key word “struct” is used to declare the structure. A Polynomial is a mathematical expression involving a sum of powers in one or more variables multiplied by coefficients. Read more about C Programming Language .

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***********************************************************/

#include < stdio.h >
#include < conio.h >
#define MAX 20

struct addpolynomial {
int exp, coef;
};

void main() {
struct addpolynomial p1[MAX], p2[MAX], p3[MAX];
int max1, max2, max3;
clrscr();
printf("nEnter first addpolynomial : ");
max1 = read_addpolynomial(p1);
printf("nEnter second addpolynomial : ");
max2 = read_addpolynomial(p2);
max3 = add_addpolynomial(p1, p2, p3, max1, max2);
printf("nFirst addpolynomial is ");
print_addpolynomial(p1, max1);
printf("nSecond addpolynomial is ");
print_addpolynomial(p2, max2);
printf("n The resultant addpolynomial after addition is");
print_addpolynomial(p3, max3);
}

//function to read polynomial
int read_addpolynomial(struct addpolynomial p[]) {
int i, texp;
i = 0;
printf("nEnter exp ( use -1 to exit) : ");
scanf("%d", &texp);
while (texp != -1) {
p[i].exp = texp;
printf("nEnter coef : ");
scanf("%d", &p[i].coef);
i++;
printf("nEnter exp ( use -1 to exit) : ");
scanf("%d", &texp);
}
return (i);
}

//function to print polynomial
int print_addpolynomial(struct addpolynomial p[], intMAX1) {
int i;
for (i = 0; i < max1; i++)
printf("%+dX%d ", p[i].coef, p[i].exp);
return;
}

//function to ad polynomials
int add_addpolynomial( p1, p2, p3, max1, max2)
struct addpolynomial p1[], p2[], p3[];
intMAX1, max2;
{
int i,j,k;
i = j = k = 0;
while ( i <max1 && j <max2)
{
if( p1[i].exp > p2[j].exp)
{
p3[k] = p1[i];
k++;
i++;
}
else
if( p1[i].exp < p2[j].exp)
{
p3[k] = p2[j];
k++;
j++;
}
else
{
p3[k].exp = p1[i].exp;
p3[k].coef = p1[i].coef + p2[j].coef;
i++;
j++;
k++;
}
}
while( i <max1 )
{
p3[k] = p1[i];
k++;
i++;
}
while( j <max2 )
{
p3[k] = p2[j];
k++;
j++;
}
return(k);
}

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K & R C Programs Exercise 2-6.

K and R C, Solution to Exercise 2-6:
 K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language (2nd Edition) You can learn and solve K&R C Programs Exercise.
C Function setbits(x, p, n, y) that returns x with the n bits that begin at position p set to the rightmost n bits of y, leaving the other bits unchanged.Read more about C Programming Language .

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* and browse!
*
* Happy Coding
***********************************************************/

#include <stdio.h>

unsigned setbits(unsigned x, int p, int n, unsigned y)
{
return (x & ((~0 << (p + 1)) | (~(~0 << (p + 1 - n))))) | ((y & ~(~0 << n)) << (p + 1 - n));
}

int main(void)
{
unsigned i;
unsigned j;
unsigned k;
int p;
int n;

for(i = 0; i < 30000; i += 511)
{
for(j = 0; j < 1000; j += 37)
{
for(p = 0; p < 16; p++)
{
for(n = 1; n <= p + 1; n++)
{
k = setbits(i, p, n, j);
printf("setbits(%u, %d, %d, %u) = %un", i, p, n, j, k);
}
}
}
}
return 0;
}

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K & R C Programs Exercise 2-5.

K and R C, Solution to Exercise 2-5:
 K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise.
Write the C function any(s1, s2), which returns the first location in the string s1 where any character from the string s2 occurs, or -1 if s1 contains no characters from s2.The standard library function strpbrk does the same job but returns a pointer to the location.Read more about C Programming Language .

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*
* Happy Coding
***********************************************************/

int any(char s1[], chars2[])
{
int i, j;
for(i=0;s1[i]!='';i++)

for(j=0;s2[[j]!='' ;j++)

if(s1[i]==s2[j])
return i;

return -1;
}
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K & R C Programs Exercise 2-4.

K and R C, Solution to Exercise 2-4:
 K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise.
Write an alternate version of squeeze(s1,s2) that deletes each character in s1 that matches any character in the string s2.
Compare ,First string with the second string, if any character matched,  delete the matched character of the first string. Read more about C Programming Language .

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*
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***********************************************************/


/*squeeze: delete each char in s1 which is in s2*/
void squeeze(char s1[], chars2[])
{
int i, j, k;
for(i=k=0;s1[i]!='';i++)
{
for(j=0;s2[[j]!='' && s2[j]!=s1[i];j++)
;
if(s2[j]=='')
s1[k++]=s1[i];
}
s1[k]='';
}
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C Program for Simple DSC order Priority QUEUE Implementation

Data structures using C,Priority QUEUE is a abstract data type in which the objects are inserted with respect to certain priority. In this program, we created the simple descending order priority queue, here items are inserted in descending order. Read more about C Programming Language .

/***********************************************************
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* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact info@c-program-example.com
* To find more C programs, do visit www.c-program-example.com
* and browse!
*
* Happy Coding
***********************************************************/
#define SIZE 5 /* Size of Queue */
int PQ[SIZE],f=0,r=-1; /* Global declarations */

PQinsert(int elem)
{
int i; /* Function for Insert operation */
if( Qfull()) printf("nn Overflow!!!!nn");
else
{
i=r;
++r;
while(PQ[i] <= elem && i >= 0) /* Find location for new elem */
{
PQ[i+1]=PQ[i];
i--;
}
PQ[i+1]=elem;
}
}

int PQdelete()
{ /* Function for Delete operation */
int elem;
if(Qempty()){ printf("nnUnderflow!!!!nn");
return(-1); }
else
{
elem=PQ[f];
f=f+1;
return(elem);
}
}

int Qfull()
{ /* Function to Check Queue Full */
if(r==SIZE-1) return 1;
return 0;
}

int Qempty()
{ /* Function to Check Queue Empty */
if(f > r) return 1;
return 0;
}

display()
{ /* Function to display status of Queue */
int i;
if(Qempty()) printf(" n Empty Queuen");
else
{
printf("Front->");
for(i=f;i<=r;i++)
printf("%d ",PQ[i]);
printf("<-Rear");
}
}

main()
{ /* Main Program */
int opn,elem;
do
{
clrscr();
printf("n ### Priority Queue Operations(DSC order) ### nn");
printf("n Press 1-Insert, 2-Delete,3-Display,4-Exitn");
printf("n Your option ? ");
scanf("%d",&opn);
switch(opn)
{
case 1: printf("nnRead the element to be Inserted ?");
scanf("%d",&elem);
PQinsert(elem); break;
case 2: elem=PQdelete();
if( elem != -1)
printf("nnDeleted Element is %d n",elem);
break;
case 3: printf("nnStatus of Queuenn");
display(); break;
case 4: printf("nn Terminating nn"); break;
default: printf("nnInvalid Option !!! Try Again !! nn");
break;
}
printf("nnnn Press a Key to Continue . . . ");
getch();
}while(opn != 4);
}


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K & R C Programs Exercise 2-3.

K and R C, Solution to Exercise 2-3:
C Function htoi() which converts a string of hexa decimal digits into its equivalent integer value. K and R C Program. Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise. Read more about C Programming Language .

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* programs for commercial purposes,
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* and browse!
*
* Happy Coding
***********************************************************/

#define YES 1
#define NO 0
//HTOI: CONVERT HEXADECIMAL STRING S TO INTEGER
int htoi(char s[])
{
int hexdigit, i, inhex, n,i=0;
if(s[i]=='0'){
++i;
if(s[i]=='x' || s[i]=='x')
++i;
}
n=0;
inhex=YES;
for(;inhex==YES;++i){
if(s[i]>='0' && s[i]<='9')
hexdigit=s[i]-'0';
else if(s[i]>='a' && s[i]<='f')
hexdigit=s[i]-'a'+10;
else if (s[i]>='A' && s[i]<='F')
hexdigit=s[i]-'A'+10;
else
inhex=NO;
if(inhex==YES)
n=16*n+hexdigit;
}
return n;
}


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K & R C Programs Exercise 2-2.

K and R C, Solution to Exercise 2-2:
C Program to demonstrate for and while loops. K and R C Program. Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise. Read more about C Programming Language .

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* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
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* and browse!
*
* Happy Coding
***********************************************************/

/*Write the equivalent to the below for loop without using && or ||.*/

// Original

for(i=0; i<lim-1 && (c=getchar()) != 'n' && c != EOF; ++i)
{
s[i] = c;
}
// Equivalent:


while (i < (lim - 1))
{
c = getchar();

if (c == EOF)
break;
else if (c == 'n')
break;

s[i++] = c;
}

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K & R C Programs Exercise 2-1.

K and R C, Solution to Exercise 2-1:
C program to determine the ranges of char, short, int and long variables, both signed and unsigned, by printing appropriate values from standard headers and by direct computation.the ANSIstandard for C specifies that ranges be defined in <limits.h>. K and R C Program. Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise. Read more about C Programming Language .

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* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact info@c-program-example.com
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* and browse!
*
* Happy Coding
***********************************************************/

#include <stdio.h>
#include <limits.h>

int
main ()
{
printf("Range of Char %dn", CHAR_BIT);
printf("Range of Char Max %dn", CHAR_MAX);
printf("Range of Char Min %dn", CHAR_MIN);
printf("Range of int min %dn", INT_MIN);
printf("Range of int max %dn", INT_MAX);
printf("Range of long min %ldn", LONG_MIN);
printf("Range of long max %ldn", LONG_MAX);
printf("Range of short min %dn", SHRT_MIN);
printf("Range of short max %dn", SHRT_MAX);
printf("Range of unsigned char %un", UCHAR_MAX);
printf("Range of unsigned long %lun", ULONG_MAX);
printf("Range of unsigned int %un", UINT_MAX);
printf("Range of unsigned short %un", USHRT_MAX);

return 0;
}

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K & R C Programs Exercise 1-24.

K and R C, Solution to Exercise 1-24:
C program for rudimentary syntax errors like unbalanced parentheses, brackets,quotes,and braces. This program is hard if we do it in full generality. K and R C Program Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise. Read more about C Programming Language .

/***********************************************************
* You can use all the programs on www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact info@c-program-example.com
* To find more C programs, do visit www.c-program-example.com
* and browse!
*
* Happy Coding
***********************************************************/

#include <stdio.h>

#define MAXLINE 1000 /* max input line size */
char line[MAXLINE]; /*current input line*/

int getline(void); /* taken from the KnR book. */

int main() {
int len = 0;
int t = 0;
int brace = 0, parenthesis = 0, brack = 0;
int s_quote = 1, d_quote = 1;

while ((len = getline()) > 0) {
t = 0;
while (t < len) {
if (line[t] == '{') {
brace++;
}
if (line[t] == '}') {
brace--;
}
if (line[t] == '[') {
brack++;
}
if (line[t] == ']') {
brack--;
}
if (line[t] == '(') {
parenthesis++;
}
if (line[t] == ')') {
parenthesis--;
}
if (line[t] == ''') {
s_quote *= -1;
}
if (line[t] == '"') {
d_quote *= -1;
}
t++;
}
}
if (d_quote != 1)
printf("Mismatching double quote markn");
if (s_quote != 1)
printf("Mismatching single quote markn");
if (parenthesis != 0)
printf("Mismatching parenthesisn");
if (brace != 0)
printf("Mismatching bracesn");
if (brack != 0)
printf("Mismatching bracket markn");
if (brack == 0 && brace == 0 && parenthesis == 0 && s_quote == 1 && d_quote
== 1)
printf("Syntax appears to be correct.n");
return 0;
}

/* getline function */
int getline(void) {
int c, i;
extern char line[];

for (i = 0; i < MAXLINE - 1 && (c = getchar()) != EOF && c != 'n'; ++i)
line[i] = c;
if (c == 'n') {
line[i] = c;
++i;
}
line[i] = '';
return i;

}

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C Program for Simple ASC order Priority QUEUE Implementation

Data structures using C,Priority QUEUE is a abstract data type in which the objects are inserted with respect to certain priority. In this program, we created the simple ascending order priority queue, here items are inserted in ascending order. Read more about C Programming Language .

/***********************************************************
* You can use all the programs on www.c-program-example.com
* for personal and learning purposes. For permissions to use the
* programs for commercial purposes,
* contact info@c-program-example.com
* To find more C programs, do visit www.c-program-example.com
* and browse!
*
* Happy Coding
***********************************************************/
#define SIZE 5 /* Size of Queue */
int PQ[SIZE],f=0,r=-1; /* Global declarations */

PQinsert(int elem)
{
int i; /* Function for Insert operation */
if( Qfull()) printf("nn Overflow!!!!nn");
else
{
i=r;
++r;
while(PQ[i] >= elem && i >= 0) /* Find location for new elem */
{
PQ[i+1]=PQ[i];
i--;
}
PQ[i+1]=elem;
}
}

int PQdelete()
{ /* Function for Delete operation */
int elem;
if(Qempty()){ printf("nnUnderflow!!!!nn");
return(-1); }
else
{
elem=PQ[f];
f=f+1;
return(elem);
}
}

int Qfull()
{ /* Function to Check Queue Full */
if(r==SIZE-1) return 1;
return 0;
}

int Qempty()
{ /* Function to Check Queue Empty */
if(f > r) return 1;
return 0;
}

display()
{ /* Function to display status of Queue */
int i;
if(Qempty()) printf(" n Empty Queuen");
else
{
printf("Front->");
for(i=f;i<=r;i++)
printf("%d ",PQ[i]);
printf("<-Rear");
}
}

main()
{ /* Main Program */
int opn,elem;
do
{
clrscr();
printf("n ### Priority Queue Operations(ASC order) ### nn");
printf("n Press 1-Insert, 2-Delete,3-Display,4-Exitn");
printf("n Your option ? ");
scanf("%d",&opn);
switch(opn)
{
case 1: printf("nnRead the element to be Inserted ?");
scanf("%d",&elem);
PQinsert(elem); break;
case 2: elem=PQdelete();
if( elem != -1)
printf("nnDeleted Element is %d n",elem);
break;
case 3: printf("nnStatus of Queuenn");
display(); break;
case 4: printf("nn Terminating nn"); break;
default: printf("nnInvalid Option !!! Try Again !! nn");
break;
}
printf("nnnn Press a Key to Continue . . . ");
getch();
}while(opn != 4);
}


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