C exercises

Answers of CodeForWin C exercises

codeforwin_c_exercises/basic_programming_exercises/dnm.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int main()
+{
+    float cm, meter, km;
+
+    /* Input length in centimeter from user */
+    printf("Enter length in centimeter: ");
+    scanf("%f", &cm);
+
+    /* Convert centimeter into meter and kilometer */
+    meter = cm / 100.0;
+    km    = cm / 100000.0;
+
+    printf("Length in Meter = %.2f m \n", meter);
+    printf("Length in Kilometer = %.2f km", km);
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise1/exercise1.c

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+/*
+Write a C program to demonstrate input and output of all basic 
+and derived types. How to use scanf() and printf() 
+function perform input and output on primitive types in C programming.
+*/
+#include <stdio.h>
+
+int main()
+{
+    char charVal;
+    unsigned char uCharVal;
+
+    short shortVal;
+    unsigned short uShortVal;
+
+    int intVal;
+    unsigned int uIntVal;
+
+    long longVal;
+    unsigned long uLongVal;
+
+    long long longLongVal;
+    unsigned long long uLongLongVal;
+
+    float floatVal;
+    double doubleVal;
+    long double longDoubleVal;
+
+    printf("Enter a character: ");
+    charVal = getchar();
+    getchar();
+
+    printf("Enter another character: ");
+    uCharVal = getchar();
+    getchar(); 
+
+    printf("Enter a signed short value: ");
+    scanf("%hi", &shortVal);
+
+    printf("Enter an unsigned short value: ");
+    scanf("%hu", &uShortVal);
+
+    printf("Enter an signed integer value: ");
+    scanf("%d", &intVal);
+
+    printf("Enter an unsigned integer value: ");
+    scanf("%lu", &uIntVal);
+
+    printf("Enter a signed long value: ");
+    scanf("%ld", &longVal);
+
+    printf("Enter an unsigned long value: ");
+    scanf("%lu", &uLongVal);
+
+    printf("Enter a signed long long value: ");
+    scanf("%lld", &longLongVal);
+
+    printf("Enter an unsigned long long value: ");
+    scanf("%llu", &uLongLongVal);
+
+    printf("Enter a float value: ");
+    scanf("%f", &floatVal);
+
+    printf("Enter a double value: ");
+    scanf("%lf", &doubleVal);
+
+    printf("Enter a long double value: ");
+    scanf("%Lf", &longDoubleVal);
+
+
+
+    printf("\nYou entered character: '%c' \n", charVal);
+    printf("You entered unsigned character: '%c' \n\n", uCharVal);
+
+    printf("You entered signed short: %hi \n", shortVal);
+    printf("You entered unsigned short: %hu \n\n", uShortVal);
+
+    printf("You entered signed int: %d \n", intVal);
+    printf("You entered unsigned int: %lu \n\n", uIntVal);
+
+    printf("You entered signed long: %ld \n", longVal);
+    printf("You entered unsigned long: %lu \n\n", uLongVal);
+
+    printf("You entered signed long long: %lld \n", longLongVal);
+    printf("You entered unsigned long long: %llu \n\n", uLongLongVal);
+
+    printf("You entered float: %f \n", floatVal);
+    printf("You entered double: %lf \n", doubleVal);
+    printf("You entered long double: %Lf \n", longDoubleVal);
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise10/exercise10.c

@@ -0,0 +1,8 @@
+/*
+Write a C program to input number of days from user 
+and convert it to years, weeks and days. How to convert 
+days to years, weeks in C programming. Logic to convert 
+days to years, weeks and days in C program.
+*/
+
+

codeforwin_c_exercises/basic_programming_exercises/exercise2/exercise2.c

@@ -0,0 +1,22 @@
+/*
+Write a C program to input two numbers from user 
+and calculate their sum. C program to add two numbers 
+and display their sum as output. How to add two numbers in C programming.
+*/
+#include<stdio.h>
+
+int main(){
+
+    int num1,num2;
+    int sum;
+
+    printf("Enter two integers:");
+    scanf("%d %d",&num1,&num2);
+
+    sum = num1 + num2;
+
+    printf("Sum:%d\n",sum);
+
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise3/exercise3.c

@@ -0,0 +1,33 @@
+/*
+Write a C program to input two numbers and perform all arithmetic operations. 
+C program to find sum, difference, product, quotient and modulus of two given numbers.
+*/
+
+#include<stdio.h>
+
+int main(){
+
+    int num1,num2;
+    int sum,dif,product,mod;
+    float quotient;
+
+    printf("Enter two numbers:");
+    scanf("%d %d",&num1,&num2);
+
+    sum = num1 + num2;
+    printf("Sum:%d\n",sum);
+
+    dif = num1 - num2;
+    printf("Difference:%d\n",dif);
+
+    product = num1 * num2;
+    printf("Product:%d\n",product);
+
+    quotient = (float)num1 / num2;
+    printf("Quotient:%.2f\n",quotient);
+
+    mod = num1 % num2;
+    printf("Mod:%d\n",mod);
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise4/exercise4.c

@@ -0,0 +1,29 @@
+/*
+Write a C program to input length and width of 
+a rectangle and calculate perimeter of the rectangle. 
+How to find perimeter of a rectangle in C programming. 
+Logic to find the perimeter of a rectangle if length 
+and width are given in C programming.
+*/
+
+#include<stdio.h>
+
+int main(){
+
+    int legth,width;
+    int perimeter;
+
+    printf("Enter legth:");
+    scanf("%d",&legth);
+
+    printf("Enter width:");
+    scanf("%d",&width);
+
+    perimeter = (2*legth)+(2*width);
+
+    printf("Perimeter is %d\n",perimeter);
+
+
+    return 0;
+}
+

codeforwin_c_exercises/basic_programming_exercises/exercise5/exercise5.c

@@ -0,0 +1,25 @@
+/*
+Write a C program to input length and width of 
+a rectangle and find area of the given rectangle. 
+*/
+
+#include<stdio.h>
+
+int main(){
+
+    int legth,width;
+    int area;
+
+    printf("Enter legth:");
+    scanf("%d",&legth);
+
+    printf("Enter width:");
+    scanf("%d",&width);
+
+    area = legth * width;
+
+    printf("Area is %d\n",area);
+
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise6/exercise6.c

@@ -0,0 +1,28 @@
+/*
+Write a C program to input radius of a circle from user 
+and find diameter, circumference and area of the circle. 
+How to calculate diameter, circumference and area of 
+a circle whose radius is given by user in C programming. 
+Logic to find diameter, circumference and area of a circle in C.
+*/
+
+#include<stdio.h>
+#define PI 3.14
+int main(){
+
+    float r;
+    float R,circ,area;
+
+    printf("Enter radius:");
+    scanf("%f",&r);
+
+    R = 2 * r;
+    circ = 2 * PI * r;
+    area = PI * r * r;
+
+    printf("Diameter:%.1f\n",R);
+    printf("Circumference:%.1f\n",circ);
+    printf("Area:%.2f\n",area);
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise7/exercise7.c

@@ -0,0 +1,22 @@
+/*
+Write a C program to input length in centimeter 
+and convert it to meter and kilometer. How to convert length 
+from centimeter to meter and kilometer in C programming. 
+Length conversion program in C from centimeter to meter and centimeter to kilometer.
+*/
+
+#include<stdio.h>
+
+int main(){
+
+    int length;
+
+    printf("Length (cm):");
+    scanf("%d",&length);
+
+    printf("%dcm is %.2fm\n",length,(length/100.0));
+    printf("%dcm is %.2fkm\n",length,(length/100000.0));
+
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise8/exercise8.c

@@ -0,0 +1,22 @@
+/*
+Write a C program to input temperature in Centigrade 
+and convert to Fahrenheit. How to convert temperature from degree 
+centigrade to degree Fahrenheit in C programming. Logic to convert 
+temperature from Celsius to Fahrenheit in C.
+*/
+#include<stdio.h>
+
+int main(){
+
+    float tempC,fah;
+
+    printf("Enter temperature in Celsius:");
+    scanf("%f",&tempC);
+
+    fah = (tempC * 1.8) + 32;
+
+    printf("Temperature in Fahrenheit:%.2f\n",fah);
+
+
+    return 0;
+}

codeforwin_c_exercises/basic_programming_exercises/exercise9/exercise9.c

@@ -0,0 +1,23 @@
+/*
+Write a C program to input temperature in degree Fahrenheit 
+and convert it to degree Centigrade. How to convert temperature 
+from Fahrenheit to Celsius in C programming. C program for 
+temperature conversion. Logic to convert temperature from 
+Fahrenheit to Celsius in C program.
+*/
+
+#include<stdio.h>
+
+int main(){
+
+    float celsius,fahrenheit;
+
+    printf("Enter temperature in degree Fahrenheit:");
+    scanf("%f",&fahrenheit);
+
+    celsius = (fahrenheit-32)*5/9;
+
+    printf("%.2f Fahrenheit = %2.f Celsius",fahrenheit,celsius);
+
+    return 0;
+}

codeforwin_c_exercises/bitwise_operator-programming_exercises/exercise1/exercise1.c

@@ -0,0 +1,29 @@
+/*
+Write a C program to input any number from user and check whether 
+the Least Significant Bit (LSB) of the given number is set (1) or not (0). 
+How to check whether the least significant bit of a number is set 
+or unset using bitwise operator in C programming. C program to get 
+the status of least significant bit of a number.
+*/
+
+#include<stdio.h>
+
+int main(){
+
+    int x;
+
+    printf("Enter any integer:");
+    scanf("%d",&x);
+
+    if (x & 1)
+    {
+        printf("LSB of %d is is set (1)\n", x ); 
+    }
+    else{
+        printf("LSB of %d is is unset (0)\n", x );
+    }
+
+
+
+    return 0;
+}