C-Tutorial: C PROGRAMS

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Sunday, 8 December 2019

sine series 1-x^2/2!+x^4/4!-x^6/6!+.....

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Program for sine series 1-x^2/2!+x^4/4!-x^6/6!+..... */

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

double x, sum = 1, m;

int n, i, j, fact, y=2, term=1;

clrscr();

printf("\n Enter x value: ");

scanf("%lf",&x);

printf("\n Enter no.of terms: ");

scanf("%d",&n);

for (i = 1; i < n; i++) {

fact = 1;

for (j = 1; j <= y; j++) {

fact = fact * j;

}

term = term * (-1);

m = term * pow(x, y) / fact;

sum = sum + m;

y += 2;

}

printf("\n Sine series: %.2lf",sum);

getch();

}

program to convert hexadecimal to decimal

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* program to convert number from hexadecimal to decimal*/

#include <stdio.h>

#include <string.h>

#include <math.h>

void main()

{

char hex[32]={0};

int dec = 0, i, cnt = 0, dig;

clrscr();

printf("Enter hexa decimal value: ");

gets(hex);

for(i=(strlen(hex)-1);i>=0;i--)

{

switch(hex[i])

{

case 'A':

dig=10; break;

case 'B':

dig=11; break;

case 'C':

dig=12; break;

case 'D':

dig=13; break;

case 'E':

dig=14; break;

case 'F':

dig=15; break;

default:

dig=hex[i]-48;

}

dec= dec + (dig)*pow((double)16,(double)cnt);

cnt++;

}

printf("DECIMAL value is: %d", dec);

getch();

}

Program for convert binary to decimal

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Program for convert binary to decimal */

#include <stdio.h>

#include <math.h>

void main()

{

long int n;

int dec = 0, temp = 0, r;

clrscr();

printf("Enter a binary number: ");

scanf("%ld", &n);

while (n!=0)

{

r = n % 10;

n = n / 10;

dec = dec + r * pow(2,temp);

temp++;

}

printf("\n\n Equivalent decimal number is: %d", dec);

getch();

}

Program for convert octal to decimal

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Program for convert octal to decimal */

#include <stdio.h>

#include <math.h>

void main()

{

long int n;

int dec = 0, temp = 0, r;

clrscr();

printf("Enter a octal number: ");

scanf("%ld", &n);

while (n!=0)

{

r = n % 10;

n = n / 10;

dec = dec + r * pow(8,temp);

temp++;

}

printf("\n\n Equivalent decimal number is: %d", dec);

getch();

}

convert decimal to binary / octal / hexadecimal

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Program for convert decimal to binary / octal / hexadecimal */

#include <stdio.h>

#include <conio.h>

void main()

{

long n;

int i=0,a[20],b;

clrscr();

printf("\n Enter a decimal value: ");

scanf("%ld", &n);

printf("\n Enter base value (2, 8, 16): ");

scanf("%d", &b);

while(n!=0)

{

a[i] = n % b;

n = n/b;

i++;

}

if(b==2) {

printf("\n After conversion binary value: ");

}

else if(b==8) {

printf("\n After conversion octal value: ");

}

else {

printf("\n After conversion hexadecimal value: ");

}

for(i=i-1;i>=0;i--)

printf("%d",a[i]);

getch();

}

program for histogram given array elements

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* program printing stars equal to each element in the list */

#include<stdio.h>

#include<conio.h>

void main()

{

int a[20], i, j, n;

clrscr();

printf("\n Enter the how many array elements: ");

scanf("%d",&n);

printf("\n Enter %d elements: ",n);

for(i=0;i<=n-1;i++)

scanf("%d",&a[i]);

for(i=0;i<n;i++)

{

printf("\n a[%d] = %d : ",i,a[i]);

for(j=0;j<a[i];j++)

printf(" *");

}

getch();

}

Array order reversal without using second array

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Array order reversal without using second array */

#include<stdio.h>

void main()

{

int arr[50], i, j, num, temp;

clrscr();

printf("\n Enter number of elements to be entered to the array: ");

scanf("%d", &num);

printf("Enter %d number of elements into array arr", num);

for (i = 0; i < num; i++) {

scanf("%d", &arr[i]);

}

j = i - 1;

i = 0;

while (i < j) {

temp = arr[i];

arr[i] = arr[j];

arr[j] = temp;

i++;

j--;

}

printf("\n Resultant array after reversal : ");

for (i = 0; i < num; i++) {

printf("%d \t", arr[i]);

}

getch();

}

sum of factorials in between range

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* sum of factorials in between m and n */

#include<stdio.h>

#include<conio.h>

void main()

{

int i, j, m, n, fact=1, sum=0;

clrscr();

printf("\n Enter the starting and ending point :");

scanf("%d%d", &m, &n);

for(i=m ;i<=n ;i++)

{

fact=1;

for(j=1; j<=i; j++)

{

fact = fact * j ;

}

sum = sum + fact;

}

printf("\n The sum of factorials between %d and %d is: %d", m, n, sum);

getch();

}

PRIME NUMBER SERIES IN BETWEEN RANGE

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* PRIME NUMBER SERIES IN BETWEEN RANGE */

#include<stdio.h>

#include<conio.h>

void main()

{

int i,j,m,n,c=0;

clrscr();

printf("\n Enter the starting point and ending point : ");

scanf("%d%d",&m,&n);

printf("\n The prime number in between %d and %d",m,n);

for(i=m;i<=n;i++)

{ c=0;

for(j=1;j<=i;j++)

{

if(i%j == 0)

c++

}

printf(" %2d",i);

}

getch();

}

Program for +ve count, -ve count, +ve sum and -ve sum

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Program for +ve count, -ve count, +ve sum and -ve sum */

#include<stdio.h>

#include<conio.h>

void main()

{

int i,a[50],n, pc=0, nc=0, psum=0, nsum=0;

clrscr();

printf("\n Enter the n value: ");

scanf("%d",&n);

printf("\n Enter the %d array elements: ",n);

for(i=0 ;i<=n-1; i++)

scanf("%d",&a[i]);

for(i=0; i<=n-1; i++)

{

if(a[i] >= 0)

{

pc++;

psum = psum + a[i];

}

else

{

nc++;

nsum = nsum + a[i];

}

printf("\n positive count = %d, negitive_count=%d, positive_summ=%d, negtive_sum=%d", pc, nc, psum, nsum);

getch();

}

Factors between 1 to 100 for a given number

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Factors between 1 to 100 for given number */

#include<stdio.h>

#include<conio.h>

void main()

{

int n, i;

clrscr();

printf("\n Enter a number: ");

scanf("%d",&n);

printf("\n The factors of %d is: \n", n);

for(i=1;i<=100;i++)

{

if(n%i==0)

printf("\t %d", i);

}

getch();

}

Finding and print 2nd largest element in the array

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* Program for 2nd largest element in the array */

#include<stdio.h>

#include<conio.h>

void main()

{

int i,n,a[30],max1,max2;

clrscr();

printf("\n Enter no.of elements: ");

scanf("%d",&n);

printf("\n Enter %d array elements : ",n);

for(i=0;i<=n-1;i++)

scanf("%d",&a[i]);

max1 = max2 = a[0];

for(i=0;i<=n-1;i++)

{

if(a[i]>max1)

{

max2=max1;

max1=a[i];

}

else

if(a[i] > max2 && a[i] < max1)

{

max2=a[i];

}

printf("\n Second largest number = %d",max2);

getch();

}

Series 1-3+5-7+9-11 .....

C PROGRAMS

Sekar C Sunday, December 08, 2019 0

/* 1-3+5-7+9-11 ..... */

#include<stdio.h>

#include<conio.h>

void main()

{

int i, n, sum=0,k=-1;

clrscr();

printf("\n Enter the no.of terms: ");

scanf("%d",&n);

for(i=1;i<=2*n;i=i+2)

{

k=-k;

sum= sum + (k*i);

}

printf("\n Sum of %d terms: %d", n, sum);

getch();

}

PROGRAM FOR PRINT ASCII VALUES

C PROGRAMS

Sekar C Friday, January 20, 2017 0

/* PROGRAM FOR PRINT ASCII VALUES */

#include<stdio.h>
#include<conio.h>

void main()
{
int i;
clrscr();
for(i=0;i<=255;i++)
printf("ASCII value of character %c: %d \n",i,i);
getch();
}

Floyd’s Triangle in C

C PROGRAMS

Sekar C Friday, January 20, 2017 0

/* Floyd’s Triangle in C */

#include<stdio.h>
#include<conio.h>

void main()
{
int i,j,n,k=1;
clrscr();
printf("Enter the number: ");
scanf("%d",&n);
printf("FLOYD'S TRIANGLE\n\n");
for(i=1;i<=n;i++)
{
for(j=1;j<=i;j++,k++)
printf(" %d",k);
printf("\n");
}
getch();
}

Sample output:
Enter the number: 5
FLOYD'S TRIANGLE

1
2 3
4 5 6
7 8 9 10
11 12 13 14 15

GIVEN NUMBER IS ARMSTRONG NUMBER OR NOT

C PROGRAMS

Sekar C Friday, January 20, 2017 0

/* THE GIVEN NUMBER IS ARMSTRONG NUMBER OR NOT */

#include<stdio.h>
#include<conio.h>

void main()
{
int n,a,sum=0,temp;
clrscr();
printf("Enter a number: ");
scanf("%d",&n);
temp=n;
while(n>0)
{
a=n%10;
sum=sum+(a*a*a);
n=n/10;
}
if(sum==temp)
printf("%d is an Armstrong number",temp);
else
printf("%d is not an Armstrong number",temp);
getch();
}

Sample output:
Enter a number: 153
153 is an Armstrong number

EXAMPLE 1: 153
TOTAL DIGITS IN 153 IS 3
AND 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153

GIVEN NUMBER IS PERFECT NUMBER OR NOT

C PROGRAMS

Sekar C Friday, January 20, 2017 0

/* THE GIVEN NUMBER IS PERFECT NUMBER OR NOT */

#include<stdio.h>
#include<conio.h>

void main()
{
int n,i=1,sum=0;
clrscr();
printf("Enter a number: ");
scanf("%d",&n);
while(i<n)
{
if(n%i==0)
{
sum=sum+i;
}
i++;
}
if(sum==n)
printf("%d is a perfect number",i);
else
printf("%d is not a perfect number",i);
getch();
}

EXAMPLES:
For example 6 is perfect number since divisor of 6 are 1, 2 and 3. Sum of its divisor is
1 + 2+ 3 =6
Next perfect number is 28 since 1+ 2 + 4 + 7 + 14 = 28
Some more perfect numbers: 496, 8128

THE GIVEN NUMBER IS STRONG NUMBER OR NOT

C PROGRAMS

Sekar C Friday, January 20, 2017 0

/* PROGRAM FOR THE GIVEN NUMBER IS STRONG NUMBER OR NOT */

#include<stdio.h>
#include<conio.h>

void main()
{
int sum=0,i,n,a,fact,temp;
clrscr();
printf("\n Enter a number: ");
scanf("%d",&n);
temp=n;
while(n>0)
{
a=n%10;
fact=1;
for(i=1;i<=a;i++)
{
fact=fact*i;
}
sum=sum+fact;
n=n/10;
}
if(sum==temp)
printf("\n The given number is strong number %d",temp);
else
printf("\n The given number is not a strong number %d",temp);
getch();
}

Example: A number is called strong number if sum of the factorial of its digit is equal to number itself. For example: 145 since

1! + 4! + 5! = 1 + 24 + 120 = 145

DIAGONAL SUM OF A MATRIX

C PROGRAMS

Sekar C Sunday, October 16, 2016 0

/* THE DIAGONAL SUM OF A MATRIX */

#include<stdio.h>
#include<conio.h>
main()
{
int m,n,i,j,a[5][5],dsum=0;
clrscr();
printf("\n Enter the row and column size:");
scanf("%d%d",&m,&n);
if(m!=n)
{
printf("\n The diagonal sum of matrix is not possible");
}
else
{
printf("\n Enter the 'A' Matrix elements is:");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n The diagonal sum of 'A' matrix is:");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
if(i==j)
dsum=dsum+a[i][j];
}
}
}
printf("%d",dsum);
getch();
}

TRANSPOSE OF GIVEN MATRIX

C PROGRAMS

Sekar C Sunday, October 16, 2016 0

/* TRANSPOSE OF GIVEN MATRIX */

#include<stdio.h>
#include<conio.h>
main()
{
int m,n,i,j,a[5][5];
clrscr();
printf("\n Enter the row and column size:");
scanf("%d%d",&m,&n);
printf("\n Enter the 'A' Matrix elements is:");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("\n The Transpose of given matrix is:");
for(i=0;i<n;i++)
{
printf("\n");
for(j=0;j<m;j++)
{
printf("%3d",a[j][i]);
}
}
getch();
}

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Sunday, 8 December 2019

sine series 1-x^2/2!+x^4/4!-x^6/6!+.....

program to convert hexadecimal to decimal

Program for convert binary to decimal

Program for convert octal to decimal

convert decimal to binary / octal / hexadecimal

program for histogram given array elements

Array order reversal without using second array

sum of factorials in between range

PRIME NUMBER SERIES IN BETWEEN RANGE

Program for +ve count, -ve count, +ve sum and -ve sum

Factors between 1 to 100 for a given number

Finding and print 2nd largest element in the array

Series 1-3+5-7+9-11 .....

Friday, 20 January 2017

PROGRAM FOR PRINT ASCII VALUES

Floyd’s Triangle in C

GIVEN NUMBER IS ARMSTRONG NUMBER OR NOT

GIVEN NUMBER IS PERFECT NUMBER OR NOT

THE GIVEN NUMBER IS STRONG NUMBER OR NOT

Sunday, 16 October 2016

DIAGONAL SUM OF A MATRIX

TRANSPOSE OF GIVEN MATRIX

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