Hacktoberfest

C++/Program-7/program.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int rows, n = 1;
+
+    cout << "Enter number of rows: \n";
+    cin >> rows;
+
+    for(int i = 0; i < rows; i++)
+    {
+        for(int line = 1; line <= rows-i; line++)
+            cout <<"  ";
+
+        for(int j = 0; j <= i; j++)
+        {
+            if (j == 0 || i == 0)
+                n = 1;
+            else
+                n = n*(i-j+1)/j;
+
+            cout << n << "   ";
+        }
+        cout << endl;
+    }
+
+    return 0;
+}

C++/Program-7/readme.md

@@ -0,0 +1 @@
+C++ Program to print Pascal' triangle

C/program-61/program.c

@@ -1,23 +1,58 @@
-#include<stdio.h>
-void main()
+/*
+  This Program calulates all the prime between the range of numbers
+  includes the numbers which is provided.
+
+  For e.g:   2  7
+  Prime Numbers are : 2 3 5 7
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+char primecheck(int);
+
+int main()
 {
-	double r,area,circum;//Initializing varaibles
-
-	printf("Enter Radius:");
-	scanf("%lf",&r);//getting radius.
-
-	if(r<10)//Checks if radius is less than 10
-	{
-		circum = 2*3.14*r;//Circumference of a circle is 2*pi*r.
-
-		printf("The Circumference of the Circle with the given radius is: %lf",circum);//printing Circumference
-	}
-	else//If r is NOT less that 10....i.e. r is greater than 10
-	{
-	area = 3.14*r*r;//Area of a circle is pi*r*r.
-
-	printf("The Area of the Circle with the given radius is: %lf",area);//printing The area	
-	}
-	getch();
-
+    int i,num1,num2,cases;
+    char ans;
+    printf("Enter Number of Test Cases: ");
+    scanf("%d",&cases);
+    while (cases--)
+    {
+        printf("Enter First Number: ");
+        scanf("%d",&num1);
+        printf("Enter Second Number: ");
+        scanf("%d",&num2);
+
+        printf("Answer: ");
+        for(i=num1;i<=num2;i++)
+        {
+            ans = primecheck(i);
+            if (ans == 'y')
+                printf("%d ",i);
+        }
+        printf("\n");
+    }
+    return 0;
 }
+
+char primecheck(int num)
+{
+    int i;
+    if (num == 0 || num == 1)
+        return 'n';
+    else
+    {
+        for(i=(num-1);i>1;i--)
+        {
+            if(num%i == 0)
+            {
+                return 'n';
+            }
+            else
+                continue;
+        }
+        return 'y';
+    }
+
+}

Python/README.md

@@ -18,7 +18,8 @@
 | Program-14 | Program to find simple interest for given principal amount, time and rate of interest. |
 | Program-15 | Program to sort the array and give the time to sort the array. |
 | Program-16 | Program to print a right angled triangle. |
-| Program-17 | Program to check leap year or not. |
+| Program-17 | Program to convert Binary to Decimal. |
+| Program-18 | Program to check leap year or not. |
 
 
 

Python/program-17/program.py

@@ -1,10 +1,14 @@
-for i in range(1,6):
-    for j in range(1,6-i):
-        print(" ",end=" ")
-    for k in range(1,i+1):
-        print(k,end=" ")
-    if i>1:
-        for l in range(1,i+1):
-            print(l,end=" ")
-    print()
-
+#Python Program to Convert Decimal to Binary
+
+def decimalToBinary(num):
+    """This function converts decimal number
+    to binary and prints it"""
+    if num > 1:
+        decimalToBinary(num // 2)
+    print(num % 2, end='')
+
+
+# decimal number
+number = int(input("Enter any decimal number: "))
+
+decimalToBinary(number)

Python/program-18/program.py

@@ -1,4 +1,7 @@
-for i in range(1,6):
-    for j in range(1,i+1):
-        print(i,end=' ')
-    print()
+
+year =  int( input('Enter Year: '))
+
+if (year%4) and (year%100) and (year%400)  == 0:
+    print('Leap year')
+else:
+    print('Not leap year')