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C program to remove spaces in a sentence using string concepts.
Problem
Remove all the spaces from an entered string at runtime with the help of while loop by checking spaces at each index of a character.
Solution
Consider an example given below −
It removes all the spaces from a given string. The given string is Tutorials Point C Programming. The result after removing spaces is TutorialsPointCProgramming.
An array of characters is called a string.
Given below is the declaration of a string −
char stringname [size];
For example, char string[50]; string of length 50 characters.
Initialization
- Using single character constant.
char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}- Using string constants.
char string[10] = “Hello”:;
Accessing
There is a control string “%s” used for accessing the string till it encounters ‘\0’.
The logic we used to remove the spaces between strings is as follows −
while(string[i]!='\0'){
check=0;
if(string[i]==' '){
j=i;
while(string[j-1]!='\0'){
string[j] = string[j+1];
j++;
}
check = 1;
}
if(check==0)
i++;
}Example
Following is the C program to remove all the spaces in a sentence by using the string concepts −
#include<stdio.h>
int main() {
char string[50];
int i=0, j, check;
printf("Enter any statement: ");
gets(string);
while(string[i]!='\0') {
check=0;
if(string[i]==' ') {
j=i;
while(string[j-1]!='\0') {
string[j] = string[j+1];
j++;
}
check = 1;
}
if(check==0)
i++;
}
printf("
Sentence without spaces: %s", string);
getch();
return 0;
}Output
When the above program is executed, it produces the following output −
Run 1: Enter any statement: Tutorials Point C Programming Sentence without spaces: TutorialsPointCProgramming Run 2: Enter any statement: Welcome to the world of tutorials Sentence without spaces: Welcometotheworldoftutorials
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