As we know natural numbers contain all the positive numbers starting from 1, 2, 3, to n numbers or infinity.

Reverse a String in C

This topic will discuss several ways to reverse a string in the C programming language.

Program to replace the spaces of a string with a specific character 

Explanation

In this program, we need to replace all the spaces present in the string with a specific character.

One of the approach to accomplish this is by iterating through the string to find spaces. If spaces are present, then assign specific character in that index. Other approach is to use a built-in function replace function to replace space with a specific character.

Algorithm

1. Define a string.
2. Determine the character 'ch' through which spaces need to be replaced.
3. Use replace function to replace space with 'ch' character

•  Program:

#include<stdio.h>
#include<string.h>

int main()
{
    char str[80], ch1, ch2;
    int i;

    printf("\n Enter string :");
    gets(str);
    printf("\n Enter character to be replaced :");
    scanf("%c",&ch1);
    getchar();
    printf("\n Enter character to replace :");
    scanf("%c",&ch2);

    for(i=0;i<=strlen(str);i++)
    {
        if(str[i]==ch1)
        {
            str[i]=ch2;
        }
    }
    printf("\n Final string :%s", str);
    return 0;
}

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C Program to Remove All Occurrences of a Character in a String

•  Program:

#include<stdio.h>
#include<conio.h>

int main()
{
    char str[80], ch;
    int i,j;

    printf("\n Enter string :");
    scanf("%[^\n]s",str);
    fflush(stdin);
    printf("\n Enter character to delete :");
    scanf("%c",&ch);

    for(i=0;str[i]!='\0';i++)
    {
        if(str[i]==ch)
        {
            for(j=i;j<str[j]!='\0';j++)
            {
                str[j]=str[j+1];
            }
            i--;
        }
    }
    printf("\n Final string :%s", str);
    return 0;
}

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Write a C program to find product of digits of a number using while loop.
Write a C program in C to multiply the digits of a number.

Program to find maximum and minimum element in array.

C Program to Print Day Name of Week using Else If

C program to read and print an Employee’s Details using Structure.

C program to check student is pass or fail:

The C program to display student results demonstrates the working of conditional statement in the C language.

C program to convert Celsius to Fahrenheit:

Here, we learn how to write a C program to convert Fahrenheit from centigrade?. We will write the C program to convert Fahrenheit from centigrade. Write a C program to input temperature in Fahrenheit and convert it to centigrade. How to convert temperature from degree Fahrenheit to degree centigrade in C programming. Logic to convert temperature from Fahrenheit to centigrade in C.

In this c program, we will convert distance input by the user in meters, feet, inches, and centimeters. We will also write the algorithm of c program to convert distance in meters, feet, inches, and centimeters. We will firstly breakdown the problem and write an algorithm, then after that, we will write the c program and obtain the required output.

We need to take distance (in kilometers) from the user in kilometers and then convert it into meters, feet, inches, and centimeters and display as an output on the screen.

Logic to calculate simple interest:

C Program to find Area Of a Triangle using base and height