Must-do Coding Questions for Placement Preparation

In this article we'll share some of the most important coding questions that you should ask yourself before starting your placement preparation.

Write a program to identify if the character is an alphabet or not
Write a program to identify if the character is an alphabet or not
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Write a program to identify if the character is a vowel or consonant
Write a program to identify if the character is a vowel or consonant
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Write a program to find Area of a circle
Write a program to find Area of a circle
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Write a program to find Area of a rectangle
Write a program to find Area of a rectangle
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Write a program to find Area of a Triangle
Write a program to find Area of a Triangle
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Write a program to calculate Maximum number of handshakes
Write a program to calculate Maximum number of handshakes
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Write a program to find the double of the given number without using arithmetic operator
Write a program to find the double of the given number without using arithmetic operator
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Write a program to find ASCII values of a character
Write a program to find ASCII values of a character
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Write a program to identify of the a number is positive or negative
Write a program to identify of the a number is positive or negative
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Write a program to identify if the number is even or odd
Write a program to identify if the number is even or odd
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Write a program to find the Quadrants in which coordinates lie
Write a program to find the Quadrants in which coordinates lie
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Write a program to find Number of days in a given month of a given year
Write a program to find Number of days in a given month of a given year
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Write a program to find roots of a quadratic equation
Write a program to find roots of a quadratic equation
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Write a program to find Number of digits in an integer
Write a program to find Number of digits in an integer
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Write a program to find Factorial of a number
Write a program to find Factorial of a number
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Write a program to find Fibonacci series up to n
Write a program to find Fibonacci series up to n
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Write a program to find Sum of digits of a number
Write a program to find Sum of digits of a number
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Write a program to find Sum of numbers in a given range
Write a program to find Sum of numbers in a given range
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Write a program to reverse a given number
Write a program to reverse a given number
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Write a program to find LCM of two numbers
Write a program to find LCM of two numbers
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Write a program to identify if the number is Strong number or not
Write a program to identify if the number is Strong number or not
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Write a program to identify if the number is Perfect number or not
Write a program to identify if the number is Perfect number or not
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Write a program to find Power of a number
Write a program to find Power of a number
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Write a program to find the Factors of a number
Write a program to find the Factors of a number
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Write a program to Add two fractions
Write a program to Add two fractions
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Write a program to identify if the number is Armstrong number or not
Write a program to identify if the number is Armstrong number or not
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Write a program to identify if the number is Prime number or not
Write a program to identify if the number is Prime number or not
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Write a program to identify if the number is Palindrome or not
Write a program to identify if the number is Palindrome or not
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Write a program to print prime numbers in a given range
Write a program to print prime numbers in a given range
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Write a program to express a number as a sum of two prime numbers
Write a program to express a number as a sum of two prime numbers
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Write a program to Replace all 0’s with 1 in a given integer
Write a program to Replace all 0’s with 1 in a given integer
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Write a program to print Pyramid pattern using stars
Write a program to print Pyramid pattern using stars
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Write a program to print Pyramid pattern using numbers
Write a program to print Pyramid pattern using numbers
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Write a program to print Palindromic pyramid pattern printing
Write a program to print Palindromic pyramid pattern printing
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Write a program for Binary to decimal conversion
Write a program for Binary to decimal conversion
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Write a program for Decimal to binary conversion
Write a program for Decimal to binary conversion
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Write a program for Binary to octal conversion
Write a program for Binary to octal conversion
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Write a program for Octal to binary conversion
Write a program for Octal to binary conversion
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Write a program for Octal to decimal conversion
Write a program for Octal to decimal conversion
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Write a program for Decimal to octal conversion
Write a program for Decimal to octal conversion
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Write a program to find Sum of N natural numbers
Write a program to find Sum of N natural numbers
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Write Program to find smallest and largest element in an array
Write Program to find smallest and largest element in an array
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Write Program to find sum of elements in an array
Write Program to find sum of elements in an array
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Write Program to find longest palindrome in an array
Write Program to find longest palindrome in an array
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Write Program to remove duplicate elements in an array
Write Program to remove duplicate elements in an array
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Write Program to find number of even and odd elements in an array
Write Program to find number of even and odd elements in an array
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Write Program to check if two arrays are the same or not
Write Program to check if two arrays are the same or not
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Write Program to find the array type
Write Program to find the array type
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Write Program to find Frequency of each element of an array
Write Program to find Frequency of each element of an array
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Write a program to reverse the array
Write a program to reverse the array
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Write Program to find second smallest element in the array
Write Program to find second smallest element in the array
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Write Program to find sum of positive square elements in the array
Write Program to find sum of positive square elements in the array
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write a program to sort the array
write a program to sort the array
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Write a Program to Remove brackets from an algebraic expression
Write a Program to Remove brackets from an algebraic expression
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Write a Program to check if two strings are Anagram or not
Write a Program to check if two strings are Anagram or not
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Write a Program to copy a string
Write a Program to copy a string
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Write a Program to Capitalize the first and last letter of each word of a string
Write a Program to Capitalize the first and last letter of each word of a string
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Write a Program to calculate the Frequency of characters in a string
Write a Program to calculate the Frequency of characters in a string
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Write a Program to print Non-repeating characters in a string
Write a Program to print Non-repeating characters in a string
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Write a Program to check if String is a palindrome or not
Write a Program to check if String is a palindrome or not
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Write a Program to Remove characters in a string except alphabets
Write a Program to Remove characters in a string except alphabets
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Write a Program to Remove spaces from a string
Write a Program to Remove spaces from a string
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Write a Program to Remove vowels from a string
Write a Program to Remove vowels from a string
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Write a Program to Replace substring in a string
Write a Program to Replace substring in a string
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Write a Program to reverse a string
Write a Program to reverse a string
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Write a Program to compare two strings
Write a Program to compare two strings
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Write a Program to concatenate a string
Write a Program to concatenate a string
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Write a Program to print the length of a string
Write a Program to print the length of a string
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Write a Program to Toggle each character in a string
Write a Program to Toggle each character in a string
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Write a Program to print Length of the string without using strlen() function
Write a Program to print Length of the string without using strlen() function
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Write a Program to Count the sum of numbers in a string
Write a Program to Count the sum of numbers in a string
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Write a program to find minimum sum of absolute difference of given array
Write a program to find minimum sum of absolute difference of given array
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Write a program to find equilibrium index of an array
Write a program to find equilibrium index of an array
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Lower Triangular Matrix
Lower Triangular Matrix
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Upper Triangular Matrix
Upper Triangular Matrix
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Add two matrices and print the resultant matrix
Add two matrices and print the resultant matrix
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MATRIX MULTIPLICATION
MATRIX MULTIPLICATION
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Subtract matrix2 from matrix1 and print the resultant matrix
Subtract matrix2 from matrix1 and print the resultant matrix
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Write a program to change the given matrix to transpose of the matrix.
Write a program to change the given matrix to transpose of the matrix.
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Write a program to print the max elements in all the rows.
Write a program to print the max elements in all the rows.
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Check if two strings match where one string contains wildcard characters
Check if two strings match where one string contains wildcard characters
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Write a Program to Count common subsequence in two strings
Write a Program to Count common subsequence in two strings
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Program to find whether the numbers of an array be made equal
Program to find whether the numbers of an array be made equal
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Write Program to find whether Arrays are disjoint or not
Write Program to find whether Arrays are disjoint or not
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Maximum Scalar Product
Maximum Scalar Product
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Maximum Product Subarray
Maximum Product Subarray
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Minimum Scalar Product
Minimum Scalar Product
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Write a program to find whether an array is a subset of another array or not.
Write a program to find whether an array is a subset of another array or not.
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Write a program to print Diamond pattern printing using stars
Write a program to print Diamond pattern printing using stars
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Write a program to print hollow rectangle star pattern
Write a program to print hollow rectangle star pattern
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Write a program to find number of integers which has exactly 9 divisors
Write a program to find number of integers which has exactly 9 divisors
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Write a program to find Permutations in which n people can occupy r seats in a classroom.
Write a program to find Permutations in which n people can occupy r seats in a classroom.
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Write a program to print Solid rectangle star pattern
Write a program to print Solid rectangle star pattern
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Write a program to print Armstrong numbers between two intervals
Write a program to print Armstrong numbers between two intervals
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Write a program to print Diamond pattern using Column number
Write a program to print Diamond pattern using Column number
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Write a program to print Diamond pattern using Row numbers
Write a program to print Diamond pattern using Row numbers
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Write a program to print Floyd’s triangle
Write a program to print Floyd’s triangle
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Write a program to print Pascal triangle
Write a program to print Pascal triangle
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