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C program to find the last occurrence of a character in a string using while loop.




C program to find the last occurrence of a character in a string using while loop.



#include <stdio.h>
#include <string.h>
#define MAX 100
int lastIndex(const char * text, const char find);


int main()
{
    char text[MAX];
    char find;
    int index;

    printf("\n Enter any string: ");
    gets(text);

    printf("\n Enter any character to find in the string: ");
    find = getchar();

    index = lastIndex(text, find);

    printf("\nLast index of '%c' is %d", find, index);

    return 0;
}


int lastIndex(const char * text, const char find)
{
    int index = -1;
    int i = 0;

    while(text[i] != '\0')
    {

        if(text[i] == find)
        {
            index = i;
        }
        i++;
    }

    return index;
}


Output:
 Enter any string: computer

 Enter any character to find in the string: r

 Last index of 'r' is 7



Exercise: 1
C program to find last occurrence of a character in a string.







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