update

C++/Program-4/README.md

@@ -0,0 +1,2 @@
+Program -4
+Program to find the reverse of a string 

C++/Program-4/factorial.cpp

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+#include <iostream>
+using namespace std;
+int main()
+{
+   int t;
+   cin>>t;
+   while(t--){
+       int n,size=200,fact[size],j=size-1,carry=0;
+       cin>>n;
+       fact[size-1]=1;
+       while(n>1){
+           int x;
+           for(int k=size-1;k>=j;k--){
+               x=fact[k]*n+carry;
+               fact[k]=x%10;
+               carry=x/10;}
+            while(carry>0){
+                fact[--j]= carry%10;
+                carry/=10;}
+            n--;    
+       }
+       for(int k=j;k<size;k++){
+           cout<<fact[k];
+        }
+       cout<<endl;    
+    }
+  return 0;
+}
+

C++/Program-4/program.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+	string s;
+	cout<<"Enter the string"<<endl;
+	cin>>s;
+	int n=s.length();
+	for (int i = 0; i < n / 2; i++) 
+        swap(s[i], s[n - i - 1]); 
+    cout<<s;
+	return 0;
+}

C++/Program-4/readme.md

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+Program to find factorial of a number 

C++/Program-5/Readme.md

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+Program 5
+
+Write a program to find the sum of the digits of the given number.
+
+Variable description-- 
+
+n=Number 
+
+sum= Holds the sum 
+
+rem=Holds the single digit of the number
+
+temp=Temporarily holds the value of n

C++/Program-5/program.cpp

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+#include <iostream>
+using namespace std;
+
+int main() {
+	cout<<"enter the number\n";
+	int n;
+	cin>>n;
+	int temp, rem, sum = 0;
+	temp = n;
+	while(temp>0)
+	{
+	    rem = temp%10;
+	    temp = temp/10;
+	    sum+=rem;
+	}
+	cout<<"\nThe sum is "<<sum;
+	return 0;
+}

C/README.md

@@ -48,7 +48,20 @@
 | Program-44 | Program for implementation of the approach |
 | Program-45 | Program to illustrate the above given pattern of numbers. |
 | Program-46 | Program to convert binary number to decimal |
-| Program-47 | Program to print kaprekar number in a given range  |
-
+| Program-47 | Program to find the maximum and minimum element in an array|
+| Program-48 | Program to check if a number is even or odd  |
+| Program-49 | Program to find the sum of the digits of the given number |
+| Program-50 | Program to check whether a given number is a palindrome or not  |
+| Program-51 | Program to print duplicates in an array |
+| Program-52 | to find whether the given element is present in the array or not  |
+| Program-53 | Program to find the position of an element in an array  |
+| Program-54 | Program to check whether two strings are anagrams or not  |
+| Program-55 | Program to print print a number in binary  |
+| Program-56 | Program to calculate the number of vowels and consonants in a string  |
+| Program-57 | Program to calculate the grade  |
+| Program-58 | Program to find the sum of elements between indexes  |
+| Program-59 | Program to Search Students details in a list |
+| Program-60 | Program to print kaprekar number in a given range |
+
 
 

C/program-47/program 47.c

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+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    /* Length of the password */
+    int length;
+    int num;
+    int temp;
+    printf("Enter the length of the password: ");
+    scanf("%d", &length);
+    printf("\nEnter the number of passwords you want: ");
+    scanf("%d", &num);
+    /* Seed number for rand() */
+    srand((unsigned int) time(0) + getpid());
+
+    while(num--)
+    {
+        temp = length;
+        printf("\n");
+        while(temp--) {
+            putchar(rand() % 56 + 65);
+            srand(rand());
+        }
+
+        temp = length;
+    }
+
+    printf("\n");
+
+    return EXIT_SUCCESS;
+}

C/program-53/Readme.md

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+Program to find the position of an element in an array 

C/program-57/program.c

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+#include <stdio.h>
+
+int main () {
+    float score;
+    printf("Enter your total score (0-100): ");
+    scanf("%f",&score);
+    if(score < 0 || score > 100) {
+        printf("Enter score 0 - 100 \n");
+    } else if(score >= 80) {
+        printf("Score = %.2f , You Grade : A\n",score);
+    } else if(score >= 75) {
+        printf("Score = %.2f , You Grade : B+\n",score);
+    } else if(score >= 70) {
+        printf("Score = %.2f , You Grade : B\n",score);
+    } else if(score >= 65) {
+        printf("Score = %.2f , You Grade : C+\n",score);
+    } else if(score >= 60) {
+        printf("Score = %.2f , You Grade : C\n",score);
+    } else if(score >= 55) {
+       printf("Score = %.2f , You Grade : D+\n",score);
+    } else if(score >= 50) {
+        printf("Score = %.2f , You Grade : D\n",score);
+    }  else {
+        printf("Score = %.2f , You Grade : F\n",score);
+    }
+}

C/program-57/readme.md

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+Program 57
+
+
+Write a program in C to calculate the grade

C/program-58/Program.c

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+ #include<stdio.h>
+void main()
+
+{
+  //float n[10];
+  int i,sum,a,b,x;
+  printf("enter the size of elements\n");
+  scanf("%d", &x);
+  float n[x];
+  printf("enter the values\n");
+  for (i=0;i<x;i++)
+  {
+  scanf("%f", &n[i]);
+  }
+  printf("enter the indexes to be added\n" );
+  scanf("%d%d", &a, &b);
+  sum=0;
+  for (;a<=b;a++)
+  {
+    sum = sum + n[a];
+  }
+
+  printf("\nThe sum of elements between the indexes is %d", sum);
+}

C/program-58/readme.md

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+Program 58
+
+
+Write a program to find the sum of elements between indexes

C/program-59/program.c

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+#include<stdio.h>
+#include<string.h>
+
+typedef struct student
+{
+
+  char name[25];
+  char usn[15];
+  float cgpa;
+} S;
+S s[70];
+
+
+void search(char name[],int n)  
+{
+
+  int i,j;
+  // printf("%s\n",name);
+  for(i=0;i<n;i++)
+  {
+  if (strlen(name)==strlen(s[i].name))
+  {
+  for (j = 0; j < n; j++)
+    {
+      // printf("%s\n", s[i].name);
+      if(name[j]=name[j]) printf("Name: %s\nUSN: %s\nCGPA: %f\n", s[i].name, s[i].usn,s[i].cgpa);
+      break;
+    }
+  }
+  }
+}
+
+int main ()
+{
+  int i,a,b, n;
+  char name[10];
+
+  printf ("*Enter student details**\n");
+  printf ("Enter number of students\n");
+  scanf ("%d", &n);
+  for (i = 0; i < n; i++)
+    {
+      printf ("Enter name\n");
+      scanf ("%s", s[i].name);
+      printf ("Enter USN\n");
+      scanf ("%s", s[i].usn);
+      printf ("Enter CGPA\n");
+      scanf ("%f",&s[i].cgpa);
+    }
+  for (i = 0; i < n; i++)
+    {
+      printf ("**Student details**\n");
+      printf ("Name: %s\tUSN: %s\tCGPA: %f\n", s[i].name, s[i].usn, s[i].cgpa);
+    }
+
+  printf ("*Search by name*\n");
+  printf ("enter the name\n");
+  scanf ("%s", name);
+  // printf("%s\n", name);
+  // name = s[i].name;
+  search(name,n);
+
+}
+

C/program-59/readme.md

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+Program 59
+
+
+Write a program to Search Students details in a list

C/program-60/readme.md

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+Program 59
+
+
+Write a program to print kaprekar number in a given range

C/program-61/program.c

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+#include<stdio.h>
+void 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();
+
+}

C/program-63/program.c

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+#include<stdio.h>
+void main()
+{
+	int n1,n2,n3,n4,n5;
+	float t;
+
+	printf("Enter Five Numbers:");
+	scanf("%d %d %d %d %d",&n1,&n2,&n3,&n4,&n5);
+
+	t=(n1+n2+n3+n4+n5)/5;
+
+	printf("The Average of %d,%d,%d,%d,%d is %f",n1,n2,n3,n4,n5,t);
+
+	getch();
+
+}

Java/program-2/README.md

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+Program 2
+
+Given a String,check if it is a palindrome or not.
+
+Variable description
+s= Input String
+start= Starting index of String s
+end= Last index of String s
+flag= Variable to mark if the String is not a Palindrome

Java/program-2/program.java

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+import java.io.*;
+import java.util.*;
+class prg{
+	public static void main(String args[])
+	{
+		Scanner sc=new Scanner(System.in);
+		String s=sc.next();
+		int start=0;
+		int end=s.length()-1;
+		int flag=0;
+		while(start<end)
+		{
+			if(s.charAt(start)!=s.charAt(end))
+			{
+				flag=1;
+				break;
+			}
+			start++;
+			end--;
+		}
+		if(flag==1)
+			System.out.println("Given string is not a Palindrome");
+		else
+			System.out.println("Given string is a Palindrome");
+	}
+}

Java/program-3/README.md

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+Program-3
+
+Write a program in java to count the number of consonants and vowels in a string.

Java/program-3/program.java

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+import java.io.*;
+import java.util.*;
+class Prg{
+	public static void main(String args[])
+	{
+		Scanner sc=new Scanner(System.in);
+		String s=sc.next();
+		int v=0;
+		for(int i=0;i<s.length();i++)
+		{
+			if(s.charAt(i)=='a'||s.charAt(i)=='e'||s.charAt(i)=='i'||s.charAt(i)=='o'||s.charAt(i)=='u'||s.charAt(i)=='A'||s.charAt(i)=='E'||s.charAt(i)=='I'||s.charAt(i)=='O'||s.charAt(i)=='U')
+			v++;	
+		}
+		System.out.println("Number of vowels "+v);
+		System.out.println("Number of consonants "+(s.length()-v));
+	}
+}