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A CSV file is a comma-separated file, that is used to store data in an organized way. It usually stores data in tabular form. Most of the business organizations store their data in CSV files.In C#, StreamReader class is used to deal with the files. It opens, reads and helps in performing other functions to different types of files. We can also perform different operations on a CSV file while using this class.OpenRead() method is used to open a CSV file and ReadLine() method is used to read its contents.OpenRead() method is used to open a CSV file and ReadLine() ... Read More
An array of characters is called a string.DeclarationFollowing is the declaration for an array −char stringname [size];For example − char a[50]; string of length 50 charactersInitializationUsing single character constant −char a[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char a[10] = "Hello":;AccessingThere is a control string "%s" used for accessing the string till it encounters ‘\0’.The logic used to convert vowels from upper to lower or lower to upper is −for(i=0;string[i]!='\0';i++){ if(string[i]=='a'||string[i]=='e'||string[i]=='i'||string[i]=='o'||string[i]=='u'){ string[i]=toupper(string[i]); } } printf("The result string with converted vowels is : "); puts(string);ProgramFollowing is the C program using conversion functions ... Read More
Given a matrix, we need to print the boundary elements of the matrix and display their sum.ExampleRefer the matrix given below −Given matrix1 2 3 4 5 6 7 8 9Boundary Matrix1 2 3 4 6 7 8 9Sum of boundary elements: 1 + 2 + 3 + 4 + 6 + 7 + 8 + 9 = 40The logic to find the sum of boundary matrix is as follows −for(i = 0; i
The two’s complement for a given binary number can be calculated in two methods, which are as follows −Method 1 − Convert the given binary number into one’s complement and then, add 1.Method 2 − The trailing zero’s after the first bit set from the Least Significant Bit (LSB) including one that remains unchanged and remaining all should be complementing.The logic to find two’s complement for a given binary number is as follows −for(i = SIZE - 1; i >= 0; i--){ if(one[i] == '1' && carry == 1){ two[i] = '0'; } else ... Read More
These are used by the programmers to create their own data types and define what values the variables of these datatypes can hold.The keyword is enum.SyntaxThe syntax for enumerated data type is as follows −enum tagname{ identifier1, identifier2, ……., identifier n };ExampleGiven below is an example for enumerated data type −enum week{ mon, tue, wed, thu, fri, sat, sun };Here, Identifier values are unsigned integers and start from 0.Mon refers 0, tue refers 1 and so on.ExampleFollowing is the C program for enumerated data type − Live Demo#include main ( ){ enum week {mon, tue, wed, thu, fri, ... Read More
Take two arrays as input and try to merge or concatenate two arrays and store the result in third array.The logic to merge two arrays is given below −J=0,k=0 for(i=0;i
In a given matrix, when most of the elements are zero then, we call it as sparse matrix. Example − 3 x3 matrix1 1 0 0 0 2 0 0 0In this matrix, most of the elements are zero, so it is sparse matrix.ProblemCheck whether a matrix is a sparse matrix or not.SolutionLet us assume ZERO in the matrix is greater than (row * column)/2.Then, the matrix is a sparse matrix otherwise not.ProgramFollowing is the program to check whether the given matrix is sparse matrix or not − Live Demo#include #include int main(){ int row, col, i, j, a[10][10], count ... Read More
In this post, we will understand the difference between local and global variables.Local variableIt is generally declared inside a function.If it isn’t initialized, a garbage value is stored inside it.It is created when the function begins its execution.It is lost when the function is terminated.Data sharing is not possible since the local variable/data can be accessed by a single function.Parameters need to be passed to local variables so that they can access the value in the function.It is stored on a stack, unless mentioned otherwise.They can be accessed using statement inside the function where they are declared.When the changes are ... Read More
To begin with, let us understand what are trailing zeros in a binary number.Trailing zerosThe position of zeros after first one from the least significant bit (LSB) is called as trailing zeros in binary number.Example104 is decimal numberBinary number of 104 is: (MSB) 1101000(LSB)Here, MSB refers to Most Significant Bit.LSB refers to Least Significant Bit.From LSB after the first bit set, there are three zero.The number of trailing zeros is three.ExampleFollowing is the program to count number of trailing zeros for a given number − Live Demo#include #include int main(){ int number, i, trail = 0, size; printf("Enter a ... Read More
Consider the factors given below to write a C program to rotate the bits for a given number.Rotating the bit from left to right or right to left.In left rotation, the bits are shifted from left to right.In right rotation, the bits are shifted from right to left.Take a number and try to rotate either left or right based on user program.User has to enter the number rotation at run time along with a number.Program 1Following is the C program to apply left rotation for a given number. Live Demo#include #include int main(){ int number, rotate, Msb, size; printf("Enter ... Read More