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How to get substring that start and end with the same character in C

1 Answer

0 votes
#include <stdio.h>

void char_substr(char str[], char ch, int *start, int *end) {  
    for (int i = 0; str[i] != '\0'; i++) {  
        if (str[i] == ch) {
            *start = i;
            for (int j = i + 1; str[j] != '\0'; j++) {
                if (str[j] == ch) {  
                    *end = j; 
                    break;
                }
            }
        }
        if (*start != 0)
            break;
    }
}  
  

int main()  
{  
    char str[] = "hgdabcvauyec"; 
    int start = 0, end = 0;
    
    char_substr(str, 'a', &start, &end);
     
    for (int i = start; i <= end; i++) {
        printf("%c", str[i]);
    }
    
    return 0;  
}  



/*
run:

abcva

*/

 




answered Apr 17 by avibootz
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