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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