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Assignment 01 - Algorithms (17/01/2024)
- 21BEC7130, K.Saipavan
1.Write an Algorithm to find Fibonacci series up to “n”.
A. Step 1: START
Step 2: Take input , say n.
Step 3: Initialize term1 = 0,term2 = 1,sum = 0,count = 0.Step 4: Calculate
sum = term1+term2. Print sum.
Step 5: Make term1 = term2,term2 = sum
Step 6: Increment count.Repeat from step 3 to step 5 untilcount becomes n.
Step 7 : STOP
2 Write an Algorithm to find whether a give number is prime or not.
A. Step 1: START
Step 2: Take input,say num.
Step 3: Initialize i=2.
Step 4: Calculate num%i.If “i” is equal to zero,print given number is
Prime number, go to Step 6.
Step 5: If i is not equal to zero,increment i,repeat the process from
Step 4.
Step 6: STOP
2. Write an Algorithm to find whether a given number is Armstrong
number or not.
A. Step 1: START
Step 2: Take input,say a.
Step 3: Initialize count = 0,sum = 0.
Step 4: Calculate rem = a%10 , sum = sum+(rem)(rem)(rem),
a=a/10,
Step 5: Repeat Step 4 until “a” becomes zero. If a is equal to sum
Print given number is Armstrong Number.
Step 6: STOP
3. Write an Algorithm to find whether a given number is even or not.
A. Step 1 : START
Step 2 : Take input, say number.
Step 3 : Calculate result = number%2.
Step 4 : If result is equal to zero print Even Number.
Step 5 : STOP
4. Write an Algorithm to find lcm of two numbers.
A. Step 1 : START
Step 2 : Take inputs two numbers , say num1 and num2.
Step 3 : If num2 is equal to zero, print num1 as lcm.
Step 4 : Calculate num1 = num1/num2 if num1 is greater than num2. Repeat this
until num2 becomes zero.
Step 5 : STOP.
Assignment 02 - Operators & Datatypes in C (24/01/2024)
- 21BEC7130, K.Saipavan
Program to demonstrate Operators in C
#include <stdio.h> int main(){ int a,b; printf("Enter an integer value for variable a : "); scanf("%d ",&a); printf("\nEnter an integer value for variable b : "); scanf("%d ",&b); //Arithmetic Operators printf("\nPlus(+) operator : a+b = %d",a+b); printf("\nMinus(-) operator : a-b = %d",a-b); printf("\nMultiply() operator : ab = %d",ab); printf("\nDivide(/) operator : a/b = %d",a/b); printf("\nModulus(%) operator : a%b = %d",a%b); printf("\nUnary Plus(+) operator : +a = %d",+a); printf("\nUnary Minus(-) operator : -b = %d",-b); printf("\nPost Increment(++) operator : a++ = %d",a++); printf("\nPre Increment(++) operator : ++a = %d",++a); printf("\nPost Decrement(--) operator : b-- = %d",b--); printf("\nPre Decrement(--) operator : --b = %d",--b); //Relational Operators printf("\nLess than or equal to(<=) : a<=b = %d",a<=b); printf("\nGreater than or equal to(>=) : a>=b = %d",a>=b); printf("\nLess than(<) : a<b = %d",a<b); printf("\nGreater than(>) : a>b = %d",a>b); printf("\nEqual to(==) : a==b = %d",a==b); printf("\nNot Equal to(!=) : a!=b = %d",a!=b); //Logical Operators printf("\nLogical AND(&&) : (a>b)&&(b!=a) = %d",(a>b)&&(b!=a)); printf("\nLogical OR(||) : (a>b)||(b!=a) = %d",(a>b)||(b!=a)); printf("\nLogical NOT(&&) : !(a>b) = %d",!(b!=a)); //Bitwise Operators printf("\nBitwise AND(a&b) : %d", a&b); printf("\nBitwise OR(a|b) : %d", a|b); printf("\nBitwise XOR(a^b): %d", a^b); printf("\nBitwise First Compliment(~a): %d", ~a); printf("\nBitwise Right Shift(a>>b): %d", a>>b); printf("\nBitwise Left Shift(a<<b): %d", a<<b); //Assignment Operators printf("\nSimple Assignment Operator(a=b) : %d", a=b); printf("\nPlus and Assignment Operator(a+=b) : %d", a+=b); printf("\nMinus and Assignment Operator(a-=b) : %d", a-=b); printf("\nMultiply and Assignment Operator(a= b) : %d", a*=b); printf("\nDivide and Assignment Operator(a/=b): %d", a/=b); printf("\nModulus and Assignment Operator(a%=b) : %d", a%=b); printf("\nAND and Assignment Operator(a&=b) : %d", a&=b); printf("\nOR and Assignment Operator(a|=b) : %d", a|=b); printf("\nRight Shift Assignment Operator(a>>=b) : %d", a>>b); printf("\nLeft Shift Assignment Operator(a<<=b) : %d", a<<b); }
C Program to demonstrate Data Types in C #include <stdio.h> int main(){ in t a; printf("Enter an integer value for variable a : "); scanf("%d ",&a); float f; printf("\nEnter an float value for variable f : "); scanf("%f ",&f); char c; printf("\nEnter a character value for variabe c : "); scanf("%c",&c); double d; printf("\nEnter a double value for variable d : "); scanf("%lf ",&d); short int e; printf("\nEnter a short int value for variable e : "); scanf("%hd ",&e); unsigned short int g; printf("\nEnter an unsigned short int value for variable g : "); scanf("%hu ",&g); unsigned int h; printf("\nEnter an unsigned int value for variable h : "); scanf("%u",&h); long int i; printf("\nEnter a long int value for variable i : "); scanf("%ld ",&i); unsigned long int j; printf("\nEnter an unsigned long int value for variable j : "); scanf("%lu ",&j); long long int k; printf("\nEnter a long long int value for variable k : "); scanf("%lld ",&k); unsigned long long int l; printf("\nEnter a unsigned long long int value for variable l : "); scanf("%llu ",&l); signed char m; printf("\nEnter a signed char value for variable m : "); scanf("%c ",&m); unsigned char y; printf("\nEnter a unsigned char value for variable y : "); scanf("%c ",&y); long double z; printf("\nEnter a long double value for variable z : "); scanf("%Lf ",&z); int sizeint = sizeof(int); int sizechar = sizeof(char); int sizefloat = sizeof(float); int sizedouble = sizeof(double); printf("\nThe size of int data type : %d", sizeint); printf("\nThe size of char data type : %d",sizechar); printf("\nThe size of float data type : %d",sizefloat); printf("\nThe size of double data type : %d",sizedouble);
Input : Output :
Program - 2 : C Program to calculate Electricity bill
#include <stdio.h> //Program to calculate electricity bill int main(){ float units; printf("Enter the value of units: "); scanf("%f",&units); if(units>=300){ printf("\nTotal Bill Amount is %.2f",units2.5); } else if(units>300 & units<400){ printf("\nTotal Bill Amount is %.2f",units2.75); } else if(units>400 & units<600){ printf("\nTotal Bill Amount is %.2f",units3.25); } else{ printf("\nTotal Bill Amount is %.2f",units5); } }
Program and Output Screenshots :
Program - 3 : Program to Calculate Income Tax
#include <stdio.h> //Program to calculate income tax int main(){ float income; printf("Enter the value of income : "); scanf("%f",&income); if(income>=100000){ printf("\nTax Amount to be paid is %.2f",income0.05); } else if(income>100000 & income<=150000){ printf("\nTax Amount to be paid is %.2f",income0.075); } else if(income>150000 & income<300000){ printf("\nTax Amount to be paid is %.2f",income0.10); } else{ printf("\nTax Amount to be paid is %.2f",income0.18); } }
Program and Output Screenshots :
Program - 5 : Program to Calculate Odd or even number
#include <stdio.h> //Program to calculate Odd or even number int main(){ int number; printf("Enter the number : "); scanf("%d",&number); if(number%2 == 0){ printf("\n%d is an even number",number); } else{ printf("\n%d is an odd number",number); } }
Program and Output Screenshots :
break;
case 2:
if(year%4==0){
if(year%100==0 & year%400!=0){
no_of_days = 28;
else{
no_of_days = 29;
else{
no_of_days=28;
break;
default:
printf("Invalid Input");
printf("No of days : %d",no_of_days);
Output :
2.Write a C program that calculates and prints sum of the digits of a given positive integer
using while loop. Take number as input from keyboard. Users need to check whether the sum
of digits is a prime number or not. Hint: If input number is 236 then sum of its digit (i.e.,
2+3+6 = 11) is a prime number.
Program :
#include <stdio.h>
int main() {
int num;
int sum =0,flag=0;
printf("Enter number : ");
scanf("%d",&num);
while(num!=0){
sum = sum + num%10;
num = num/10;
printf("Sum of digits : %d",sum);
int i=2;
while(i<sum){
if(sum%i==0){
flag=1;
break;
i++;
if(flag){
printf("\nSum of digits is not a Prime number");
else{
printf("\nSum of digits is a Prime number");
Output :
a[j]=temp;
printf("\nDescending order:\n");
for(i=0;i<size;i++){
printf("%d \t",a[i]);
Output :
Assignment 6 - Matrices (07/3/2024)
- K.Saipavan ,21BEC
Program to calculate product of given two matrices.
#include <stdio.h>
int main()
{ int R1,R2,C1,C2;
printf("Enter no of rows of Matrix1 : ");
scanf("%d",&R1);
printf("Enter no of columns of Matrix1 : ");
scanf("%d",&C1);
printf("Enter no of rows of Matrix2 : ");
scanf("%d",&R2);
printf("Enter no of columns of Matrix2 : ");
scanf("%d",&C2);
int arr1[R1][C1];
printf("Enter the elements of Matrix 1 : \n");
for(int i=0;i<R1;i++){
for(int j=0;j<C1;j++){
scanf("%d",&arr1[i][j]);
printf("Enter the elements of Matrix 2 : \n");
int arr2[R2][C2];
for(int i=0;i<R2;i++){
for(int j=0;j<C2;j++){
scanf("%d",&arr2[i][j]);
int result[R1][C2];
if (C1 != R2) {
printf("The number of columns in Matrix-1 must be "
"equal to the number of rows in "
"Matrix-2\n");
else{
for (int i = 0; i < R1; i++) {
for (int j = 0; j < C2; j++) {
result[i][j] = 0;
for (int k = 0; k < R2; k++) {
result[i][j] += arr1[i][k] * arr2[k][j];
printf("Product matrix is : \n");
for (int i = 0; i < R1; i++) {
Lab Assignment 07 - Number System Conversions (21/3/2024)
- K.Saipavan , 21BEC
Program : Binary to Decimal
#include <stdio.h>
#include <math.h>
int convert(long long);
int main() {
long long n;
printf("Enter a binary number: ");
scanf("%lld", &n);
printf("%lld in binary = %d in decimal", n, convert(n));
return 0;
int convert(long long n) {
int dec = 0, i = 0, rem;
while (n != 0) {
rem = n % 10;
n /= 10;
dec += rem * pow(2, i);
++i;
return dec;
Output :
Program : Decimal to Binary
#include <stdio.h>
#include <math.h>
long long convert(int);
int main() {
int n;
long long bin;
printf("Enter a decimal number: ");
scanf("%d", &n);
bin = convert(n);
printf("%d in decimal = %lld in binary", n, bin);
return 0;
long long convert(int n) {
long long bin = 0;
int rem, i = 1;
while (n != 0) {
rem = n % 2;
n /= 2;
bin += rem * i;
i *= 10;
return bin;
Output :
Program : Binary to Octal
#include <math.h>
#include <stdio.h>
int convert(long long bin);
int main() {
long long bin;
printf("Enter a binary number: ");
scanf("%lld", &bin);
printf("%lld in binary = %d in octal", bin, convert(bin));
return 0;
int convert(long long bin) {
int oct = 0, dec = 0, i = 0;
while (bin != 0) {
dec += (bin % 10) * pow(2, i);
++i;
bin /= 10;
i = 1;
while (dec != 0) {
