(jainaman224#1646) Implementation of palindrome in C & C++ GSSoC'20 (j…

…ainaman224#1825)

Added code for implementation of palindrome in C/C++

Palindrome/palindrome_no.c

@@ -0,0 +1,41 @@
+/*
+This program checks whether the enterd number is palindrome or not and generates output according to input provided.
+*/
+
+#include<stdio.h>
+int main()
+{
+    int n,rem,temp,rev = 0;
+    printf("\nEnter a number: ");
+    scanf("%d",&n);
+    temp = n;
+    while(temp != 0)
+    {
+        rem = temp % 10;
+        temp = temp / 10;
+        rev = (rev * 10) + rem;
+    }
+    if(rev != n)
+    {
+        printf("\nEntered number is not palindrome.\n");
+    }
+    else
+    {
+        printf("\nEntered number is palindrome.\n");
+    }
+    return 0;
+}
+
+
+
+/*
+  INPUT:
+	n=12456
+  OUTPUT:
+  	Entered no. is not palindrome.
+  
+  INPUT:
+  	n=12821
+  OUTPUT:
+  	Entered no. is palindrome.
+*/

Palindrome/palindrome_no.cpp

@@ -0,0 +1,43 @@
+/*
+This program checks whether the enterd number is palindrome or not and generates output according to input provided.
+*/
+
+
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n,rem,rev = 0;
+    cout << "Enter a number: ";
+    cin >> n;
+    int temp = n;
+    while(temp != 0)
+    {
+        rem = temp % 10;
+        temp = temp / 10;
+        rev = (rev * 10) + rem;
+    }
+    if(rev != n)
+    {
+        cout << "Entered number is not palindrome." << endl;
+    }
+    else
+    {
+        cout << "Entered number is palindrome." << endl;
+    }
+    return 0;
+}
+
+
+
+/*
+  INPUT:
+	n=12456
+  OUTPUT:
+  	Entered no. is not palindrome.
+  
+  INPUT:
+  	n=12821
+  OUTPUT:
+  	Entered no. is palindrome.
+*/

Palindrome/palindrome_string.cpp

@@ -0,0 +1,51 @@
+/*
+This program checks whether the enterd string is palindrome or not and generates output according to input provided.
+*/
+
+#include<iostream>
+#include<string.h> // to use swap()
+using namespace std;
+
+void string_palindrome(string s)
+{
+    string reverse = s;
+    int n = s.length();
+    for(int i=0;i<n/2;i++)
+    {
+        swap(reverse[i], reverse[n-i-1]);
+    }
+    if(reverse == s)
+    {
+        cout << s <<" is Plindrome." << endl;
+    }
+    else
+    {
+        cout << s << " is not Palindrome." << endl;
+    }
+}
+int main()
+{
+    string str;
+    cout << "Enter a string: ";
+    cin >> str;
+    string_palindrome(str);
+    return 0;
+}
+
+
+
+/*
+INPUT:
+	Enter a string: abhnch
+
+OUTPUT:
+	abhnch is not Palindrome.
+	
+_______________________________________
+
+INPUT:
+	Enter a string: adbcbda
+
+OUTPUT:
+	adbcbda is Palindrome.
+*/