added readme.md

.github/ISSUE_TEMPLATE/contribution.md

@@ -34,6 +34,7 @@
    eg-git push origin -u swaaz
 - The given link should be copied and pasted in web browser or go to your repo in web browser
 - Create a pull request
+- tag @swaaz under review section
 ## If you are contributing for the first time,then :
 [click here](https://gitme.js.org/)
 

C++/Program-2/Readme.md

@@ -0,0 +1,7 @@
+Program 2:
+
+Write a Program to find the number of occurrence of X element present in sorted array.
+Variable description-->
+n = size of array/ number of element 
+x = Element to be counted in array
+count = veriable to count the X-number in array

C++/Program-2/number_of_occurrence.cpp

@@ -0,0 +1,42 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+class Solution{
+public:
+
+/*
+ if x is present in arr[] then returns the count
+ of occurrences of x, otherwise returns 0. 
+*/
+
+int count(int arr[], int n, int x) {
+
+	int count = 0;
+	for(int i=0;i<n;i++){
+	if(arr[i] == x){
+	count++;
+}
+}
+return count;
+}
+};
+
+
+
+int main() {
+
+        int n, x;
+        cout<<"Enter the size of an Array: ";
+        cin >> n ;
+        cout<<"Enter a number to be counted: ";
+        cin>>x;
+        int arr[n];
+        for (int i = 0; i < n; i++) {
+            cin >> arr[i];
+        }
+        Solution ob;
+        auto ans = ob.count(arr, n, x);
+        cout<< "number "<<x<<" counted in array for " << ans <<" times."<< "\n";
+    return 0;
+}

C++/Program-3/Readme.md

@@ -0,0 +1,4 @@
+Program to Swap the Kth Elements of a series.
+variable description -->
+n = number of elements/size
+k = Kth element for swaping

C++/Program-3/swap_kth_Element.cpp

@@ -0,0 +1,45 @@
+#include<iostream>
+
+using namespace std ;
+
+void takeInput(int a[], int n){
+    for(int i=1;i<=n;i++){
+        cin>>a[i];
+    }
+}
+
+void swap_k(int a[], int n, int k){
+
+    int i , count = n ;
+    for(i=1 ; i<=n ,  count >= 1 ; i++ , count--){
+
+        if(k == i || k == count){
+            swap(a[k],a[count]);
+        }
+
+    }
+
+    for(i=1;i<=n;i++){
+        cout<<a[i]<<" " ;
+    }
+}
+
+int main()
+{
+
+    int n;
+    cout<<"Enter size of an Array:";
+    cin>>n ;
+
+    int k; 
+    cout<<"Enter Kth element to swap:";
+    cin>>k ;
+
+    int a[1000];
+    takeInput(a,n);
+
+    swap_k(a,n,k);
+    cout<<"\n";
+
+    return 0;
+}

C++/Program-4/README.md

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

C++/Program-4/factorial.cpp

@@ -0,0 +1,29 @@
+#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

@@ -0,0 +1 @@
+Program to find factorial of a number 

C++/Program-5/Readme.md

@@ -0,0 +1,13 @@
+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

@@ -0,0 +1,18 @@
+#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-2/program.c

@@ -15,15 +15,15 @@ return 1;
 int main() /*main function */
 {
     int n;
-    printf("enter the number");
+    printf("Enter the number:");
     scanf("%d",&n);
     if(isprime(n)==0)
     {
-        printf(" not prime");
+        printf("%d is not prime number.",n);
     }
     else if(isprime(n)==1)
     {
-        printf("prime");
+        printf("%d is a prime number.",n);
     }
     return 0;
-    }
+}

C/program-25/readme.md

@@ -0,0 +1,6 @@
+This program is to print the number of *. Example if user enter 5. Then it'll print
+*
+**
+***
+****
+*****

C/program-47/program 47.c

@@ -0,0 +1,33 @@
+#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-48/README.md

@@ -0,0 +1,5 @@
+Program 48
+
+Added a program to check if a number is even or odd.
+Variable description-
+num-Input number

C/program-48/program.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+	int num;
+	printf("Enter a number \n");
+	scanf("%d",&num);
+	if(num%2==0)
+	    printf("%d is an even number",num);
+	else
+	    printf("%d is an odd number",num);
+}

C/program-51/README.md

@@ -0,0 +1,3 @@
+Program 51
+
+Write an program to print duplicates in an array.

C/program-51/program.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+int main() {
+    int arr[100],freq[100];
+    int n,i;
+    printf("Enter the number of elements in array \n");
+    scanf("%d",&n);
+    printf("Enter elements in the array \n");
+    for(i=0;i<n;i++)
+    {
+        scanf("%d",&arr[i]);
+        freq[arr[i]]++;
+    }
+    for(i=0;i<n;i++)
+    {
+        if(freq[i]>1)
+        printf("%d ",i);
+    }
+    printf("\n");
+}

C/program-53/Readme.md

@@ -0,0 +1 @@
+Program to find the position of an element in an array 

C/program-53/program.c

@@ -0,0 +1,22 @@
+#include<stdio.h>
+int main()
+{
+    int a[100],n,el,i;  
+    printf("Enter the size of the array");
+    scanf("%d",&n);
+    printf("Enter the elements of the array");
+    for(int i=0;i<n;++i)
+        scanf("%d",&a[i]);
+    printf("Enter the element to be searched");
+    scanf("%d",&el);
+    for(i=0;i<n;++i)
+    {  
+        if(el==a[i])
+            break;
+    }  
+    if(i==n)  
+        printf("element not found in the array");   
+    else  
+        printf("element found at %d",i+1);
+    return 0;
+}

C/program-54/Readme.md

@@ -0,0 +1,3 @@
+A program in C which checks whether two strings are anagrams or not
+
+An anagram of a string is another string that contains same characters, only the order of characters can be different.

C/program-54/program.c

@@ -0,0 +1,31 @@
+#include<stdio.h>
+int main()
+{
+    char a[100],b[100]; 
+    int f[26]={0};
+    int s[26]={0};
+    int k;
+    int len1,len2;
+    printf("Enter the two strings\n");
+    fgets(a,100,stdin);
+    fgets(b,100,stdin);
+    for(int i=0;a[i]!='\0';++i)
+        f[a[i]-'a']+=1;
+    for(int i=0;b[i]!='\0';++i)
+        s[b[i]-'a']+=1;
+    len1 = sizeof(a)/sizeof(a[0]);
+    len2 = sizeof(b)/sizeof(b[0]);
+    if(len1 == len2)
+    {
+        for(k=0;k<26;++k)
+            if(f[k]!=s[k])
+                break;
+        if(k==26)
+            printf("The strings are anagrams.\n");
+        else
+            printf("The strings aren't anagrams.");
+    }
+    else
+        printf("The strings aren't anagrams.");
+    return 0;
+}