intial commit

Author: subhankar18r

01_basic/01 _helloWorld.c

@@ -1,3 +1,4 @@
+// print hello world
 #include <stdio.h>
 
 int main()

01_basic/02_findTheAverage.c

@@ -1,3 +1,5 @@
+// take three numbers and calculate the average of three numbers
+
 #include <stdio.h>
 
 int main()
@@ -9,7 +11,7 @@ int main()
     scanf("%f", &b);
     printf("enter number c \n");
     scanf("%f", &c);
-
-    printf("average is %f\n", (a + b + c) / 3);
+    float average = (a + b + c) / 3;
+    printf("average is %f\n", average);
     return 0;
 }

01_basic/03_areaOfSquare.c

@@ -1,9 +1,11 @@
-#include<stdio.h>
-int main(){
+// find the area of square
+#include <stdio.h>
+int main()
+{
   float side;
   printf("enter the side of the square \n");
-  scanf("%f",&side);
-
-  printf("the area of the square is %f\n", side*side);
+  scanf("%f", &side);
+  float area = side * side;
+  printf("the area of the square is %f\n", area);
   return 0;
 }

01_basic/04_areaOfCircle.c

@@ -1,10 +1,12 @@
-#include<stdio.h>
+// find the area of circle
+#include <stdio.h>
 #define PI 3.14
-int main(){
+int main()
+{
   float radius;
-  printf("enter radius \n");
-  scanf("%f",&radius);
-
-  printf("area is %f\n",PI * radius*radius);
+  printf("enter radius: ");
+  scanf("%f", &radius);
+  float area = PI * radius * radius;
+  printf("area is %f\n", area);
   return 0;
 }

01_basic/05_outputTheCube.c

@@ -0,0 +1,13 @@
+// find the volume of a cube
+#include <stdio.h>
+#include <math.h>
+
+int main()
+{
+  float side;
+  printf("enter side of cube: ");
+  scanf("%f", &side);
+  float volume = pow(side, 3);
+  printf("volume of cude is : %.2f\n", volume);
+  return 0;
+}

01_basic/05_volumeOfCube.c

@@ -1,14 +1,13 @@
-#include<stdio.h>
-int main(){
+// find the perimeter of a rectangle
+#include <stdio.h>
+int main()
+{
   float length, width;
-  // taking the first input
-  printf("enter length\n");
-  scanf("%f",&length);
-// taking the second input
-  printf("enter width\n");
-  scanf("%f",&width);
-
-// output the perimeter
-  printf("perimeter is %f\n", 2*(length +width));
+  printf("enter length: ");
+  scanf("%f", &length);
+  printf("enter width: ");
+  scanf("%f", &width);
+  float perimeter = 2 * (length + width);
+  printf("perimeter is %f\n", perimeter);
   return 0;
 }

01_basic/06_perimeterOfRectangle.c

@@ -1,15 +1,16 @@
+// find the smaller number only using arithmetic and relational operator
 #include <stdio.h>
 
 int main()
 {
     int a, b;
-    printf("enter a: \n");
+    printf("enter a: ");
     scanf("%d", &a);
-    printf("enter b: \n");
+    printf("enter b: ");
     scanf("%d", &b);
 
-    int c = (a < b) * a + (b < a) * b;
+    int smaller = (a < b) * a + (b < a) * b;
 
-    printf("smallest number: %d\n", c);
+    printf("smaller number is : %d\n", smaller);
     return 0;
 }

01_basic/07_findTheSmallest.c

@@ -0,0 +1,24 @@
+// Write a C program that takes an integer as input and prints "Positive" if it's greater than zero, "Negative" if it's less than zero, and "Zero" if it's equal to zero.
+#include <stdio.h>
+
+int main()
+{
+    int a;
+    printf("enter a number: ");
+    scanf("%d", &a);
+
+    if (a > 0)
+    {
+        printf("you entered a positive number\n");
+    }
+    else if (a < 0)
+    {
+        printf("you entered a negative number\n");
+    }
+    else
+    {
+        printf("you entered zero\n");
+    }
+
+    return 0;
+}

02_conditional_statements/01_positiveOrNegative.c

@@ -0,0 +1,20 @@
+// Create a C program that checks if a given integer is even or odd.Print "Even" or "Odd" accordingly.
+#include <stdio.h>
+
+int main()
+{
+    int a;
+    printf("enter a number: ");
+    scanf("%d", &a);
+
+    if (a % 2 == 0)
+    {
+        printf("you entered a even number\n");
+    }
+    else
+    {
+        printf("you entered a odd number\n");
+    }
+
+    return 0;
+}

02_conditional_statements/02_evenOrOdd.c

@@ -17,7 +17,6 @@ int main()
 
     if (temp == sum)
     {
-        /* code */
         printf("armstrong number\n");
     }
     else