C program to remove last occurrence of a character in a string; Through this tutorial, we will learn how to remove last occurrence of a character in a string using for loop, while loop and functions in c programs.
Programs and Algorithm to Remove Last Occurrence of a Character in a String in C
- Algorithm to remove last occurrence of a character
- C Program to Remove Last Occurrence of a Character in a String using For Loop
- C Program to Remove Last Occurrence of a Character in a String using While Loop
- C Program to Remove Last Occurrence of a Character in a String using Function
Algorithm to remove last occurrence of a character
Use the following algorithm to write a c program to remove last occurrence of a character in given string; as follows:
- Start program.
- Take input string from user, store it in some variable.
- Take Input character to remove from user, store it in some variable.
- Find and remove last occurrence of the given character in string.
- Print result
- End program
C Program to Remove Last Occurrence of a Character in a String using For Loop
/* C Program to Remove Last Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
int main()
{
char str[100], ch;
int i, index, len;
index = -1;
printf("\n Please Enter any String : ");
gets(str);
printf("\n Please Enter the Character that you want to Search for : ");
scanf("%c", &ch);
len = strlen(str);
for(i = 0; i < len; i++)
{
if(str[i] == ch)
{
index = i;
}
}
if(index != -1)
{
i = index;
while(i < len)
{
str[i] = str[i + 1];
i++;
}
}
printf("\n The Final String after Removing Last Occurrence of '%c' = %s ", ch, str);
return 0;
}
The output of the above c program; as follows:
Please Enter any String : hello world Please Enter the Character that you want to Search for : o The Final String after Removing Last Occurrence of 'o' = hello wrld
C Program to Remove Last Occurrence of a Character in a String using While Loop
/* C Program to Remove Last Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
int main()
{
char str[100], ch;
int i, index, len;
index = -1;
i = 0;
printf("\n Please Enter any String : ");
gets(str);
printf("\n Please Enter the Character that you want to Search for : ");
scanf("%c", &ch);
len = strlen(str);
while(i < len)
{
if(str[i] == ch)
{
index = i;
}
i++;
}
if(index != -1)
{
i = index;
while(i < len)
{
str[i] = str[i + 1];
i++;
}
}
printf("\n The Final String after Removing Last Occurrence of '%c' = %s ", ch, str);
return 0;
}
The output of the above c program; as follows:
Please Enter any String : programming world Please Enter the Character that you want to Search for : o The Final String after Removing Last Occurrence of 'o' = programming wrld
C Program to Remove Last Occurrence of a Character in a String using Function
/* C Program to Remove Last Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
void Remove_LastOccurrence(char *str, char ch);
int main()
{
char str[100], ch;
printf("\n Please Enter any String : ");
gets(str);
printf("\n Please Enter the Character that you want to Search for : ");
scanf("%c", &ch);
Remove_LastOccurrence(str, ch);
printf("\n The Final String after Removing Last Occurrence of '%c' = %s ", ch, str);
return 0;
}
void Remove_LastOccurrence(char *str, char ch)
{
int i, index, len;
len = strlen(str);
for(i = 0; i < len; i++)
{
if(str[i] == ch)
{
index = i;
}
}
if(index != -1)
{
i = index;
while(i < len)
{
str[i] = str[i + 1];
i++;
}
}
}
The output of the above c program; as follows:
Please Enter any String : remove last character Please Enter the Character that you want to Search for : r The Final String after Removing Last Occurrence of 'r' = remove last characte
