Assignment - 1 BPOPS103

Assignment-1 BPOPS103

1 Write a C Program for the following

1.1 Sum of 2 numbers

#include <stdio.h>

int main() {
    int num1, num2;
    printf("Enter two numbers: ");
    scanf("%d %d", &num1, &num2);
    printf("The sum of %d and %d is %d\n", num1, num2,num1+num2);
    return 0;
}

1.2 Area and perimeter of a circle

#include <stdio.h>

int main() {
    int rad;
    printf("Enter the radius: ");
    scanf("%d", &rad);
    printf("Area: %0.2f\n", 3.14*rad*rad );
    printf("Perimter: %0.2f", 2*3.14*rad );
    return 0;
}

1.3 Area and perimeter [2*(l+b)] of a rectangle

#include <stdio.h>

int main() {
    float l,b;
    printf("Enter L and B: ");
    scanf("%f %f", &l, &b);
    printf("Area: %0.2f\n", l*b );
    printf("Perimeter: %0.2f", 2*(l*b) );
    return 0;
}

1.4 Calculation of simple interest : ptr/100

#include <stdio.h>

int main() {
    float p,t,r;
    printf("Enter P, T and R: ");
    scanf("%f%f%f", &p, &t,&r);
    printf("SI= %0.2f\n", (p*t*r)/100 );
    return 0;
}

1.5 Convert temperature in degree to Fahrenheit

#include <stdio.h>

int main() {
    float c;
    printf("Enter the celsius: ");
    scanf("%f", &c);
    printf("Fahrenheit: %0.2f\n",c*9/5+32);
    return 0;
}

1.6 Convert temperature in degree to Fahrenheit

#include <stdio.h>

int main() {
    float c;
    printf("Enter the celsius: ");
    scanf("%f", &c);
    printf("Fahrenheit: %0.2f\n",c*9/5+32);
    return 0;
}

1.7 Greatest of 2 numbers

#include <stdio.h>

int main() {
    int a,b;
    printf("Enter Two Number: ");
    scanf("%d%d",&a,&b);
    if(a>b){
        printf("%d is Greater",a);
    }
    else{
        printf("%d is Greater",b);
    }
    return 0;
}

1.8 To check a number is odd or even

#include <stdio.h>

int main() {
    int a;
    printf("Enter the Number: ");
    scanf("%d",&a);

    if(a%2==0){
        printf("%d is Even",a);
    }
    else{
        printf("%d is Odd",a);
    }
    return 0;
}

1.9 Greatest of 3 numbers

#include <stdio.h>

int main() {
    int a,b,c;
    printf("Enter Two Number: ");
    scanf("%d%d%d",&a,&b,&c);
    if(a>b && a>c){
        printf("%d is Greatest",a);
    }
    else if(b>c) {
        printf("%d is Greatest",b);
    }
    else{
        printf("%d is Greatest",c);
    }
    return 0;
}

1.10 Sum of n natural numbers

#include <stdio.h>

int main() {
    int n, sum = 0;
    printf("Enter a positive integer: ");
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) {
        sum += i;
    }
    printf("The sum of the first %d natural numbers is %d\n", n, sum);
    return 0;
}

2 Which of the following are valid variable names in C?

• 1999_space
• _apple
• iNtEL
• one_2
• for
• #12
• i.b.m
• help+me

Answer:

1. 1999_space - Invalid (starts with a digit)
2. _apple - Valid
3. iNtEL - Valid
4. one_2 - Valid
5. for - Invalid (reserved keyword in C)
6. #12 - Invalid (contains a special character)
7. i.b.m - Invalid (contains periods, which are not allowed)
8. help+me - Invalid (contains a plus sign, which is not allowed)

3 Explain the functional block diagram of a computer.

• Input unit: The input unit is responsible for receiving data and instructions from the user. Examples of input devices include the keyboard, mouse, and scanner.
• Output unit: The output unit is responsible for displaying the results of the computer’s processing to the user. Examples of output devices include the monitor, printer, and speakers.
• Central processing unit (CPU): The CPU is the brain of the computer. It is responsible for executing instructions and processing data. The CPU consists of two main components: the arithmetic logic unit (ALU) and the control unit.
• Memory unit: The memory unit is responsible for storing data and instructions that are being processed by the CPU. There are two main types of memory: main memory and secondary storage. Main memory is volatile, meaning that the data stored in it is lost when the computer is turned off. Secondary storage is non-volatile, meaning that the data stored in it is retained even when the computer is turned off. Examples of secondary storage devices include hard drives, solid state drives, and optical discs.