Smaller and Larger

Smaller and Larger | Practice | GeeksforGeeks

Given a sorted array Arr of size N and a value X, find the number of array elements less than or equal to X and…

www.geeksforgeeks.org

class Solution{
public: 
 vector<int> getMoreAndLess(int arr[], int n, int x) {

     int c1=0, c2=0;
     for(int i=0;i<n;i++)
         if (x >=arr[i])
             c1++;
     for(int i=n-1;i>=0;i--)
         if (x <=arr[i])
             c2++;
    return {c1,c2};
 }
};

C++ if-else (Decision Making)

C++ if-else (Decision Making) | Practice | GeeksforGeeks

Given an integer N. Your task is to check if the integer is greater than, less than or equal to 5. If the integer is…

www.geeksforgeeks.org

class Solution{   
public:
    string compareFive(int n){
        // code here 
        if (n > 5)
            return "Greater than 5";
        else if (n < 5)
            return "Less than 5";
        else
            return "Equal to 5";
    }
};

Sum of Digit is Pallindrome or not

Sum of Digit is Pallindrome or not | Practice | GeeksforGeeks

Given a number n.Find if the digit sum(or sum of digits) of n is a Palindrome number or not. Note: A Palindrome number…

www.geeksforgeeks.org

class Solution {
  public:
    int isDigitSumPalindrome(int n) {
        // code here
        int sum = 0, n2, rev =0;
        while(n>0)
        {
            sum += (n %10);
            n = n/10;
        }
        n2 = sum;
        while(sum>0)
        {
            rev = rev*10 +(sum%10);
            sum /= 10;
        }
        if (n2 == rev)
            return 1;
        else
            return 0;
    }
};

Addition of Two Numbers

Addition of Two Numbers | Practice | GeeksforGeeks

Given two numbers A and B. Your task is to return the sum of A and B. Example 1: Input: A = 1, B = 2 Output: 3…

www.geeksforgeeks.org

class Solution{   
public:
    int addition(int A, int B){
        // code here 
        return (A + B);
    }
};

Series AP

Series AP | Practice | GeeksforGeeks

Given the first 2 terms a1 and a2 of an Arithmetic Series.Find the nth term of the series. Example 1: Input: a1 = 2 a2…

www.geeksforgeeks.org

class Solution {
  public:
    int nthTermOfAP(int a1, int a2, int n) {
        if(n == 1)
            return a1;
        int sum=a1;
        for(int i =2 ; i<=n ;i++)
            sum = sum + (a2-a1);
        return sum ;
    }
};

Print 1 to n without using loops

Print 1 to n without using loops | Practice | GeeksforGeeks

You are given an integer N. Print numbers from 1 to N without the help of loops. Example 1: Input: N = 5 Output: 1 2 3…

www.geeksforgeeks.org

class Solution
{
public:
    void printTillN(int N)
    {
        // Write Your Code here
        if(N==0)
            return;
        else
        {
            printTillN(N-1);
            cout<<N<<" ";
        }
    }
};

C++ Input / Output

C++ Input / Output | Practice | GeeksforGeeks

Given two integers A and B. Your task is to return their product. Example 1: Input: A = 1, B = 2 Output: 2 Explanation…

www.geeksforgeeks.org

class Solution{   
public:
    int multiplication(int A, int B){
        return (A * B);
    }
};

At least two greater elements

At least two greater elements | Practice | GeeksforGeeks

Given an array of N distinct elements, the task is to find all elements in array except two greatest elements in sorted…

www.geeksforgeeks.org

vector<int> findElements(int a[], int n)
    {
        sort(a , a+n);
        vector <int> v1;
        for(int i=0;i<n-2;i++)  
            v1.push_back(a[i]);


        return v1;
    }

Multiplication Table

Multiplication Table | Practice | GeeksforGeeks

Create the multiplication table of a given number N and return the table as an array. Example 1: Input: N = 9 Output: 9…

www.geeksforgeeks.org

class Solution
{
public:
    vector<int> getTable(int N)
    {
        vector <int> v1;
        for (int i=1;i<=10;i++)
            v1.push_back(i*N);
        return v1;
    }
};

Swap two numbers

Swap two numbers | Practice | GeeksforGeeks

Swap given two numbers and print them. (Try to do it without a temporary variable.) and return it. Example 1: Input: a…

www.geeksforgeeks.org

class Solution{   
public:
    pair<int, int> get(int a, int b){
        //complete the function here
        return pair<int,int>({b,a});
    }
};