Recursively print subtrings

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I need to print the substrings of a string, for example: OPEN, the substrings are OPEN, ABRI, ABR, AB, A. How do I do this? Because I can only print the entire string. 

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void subtring(char *ch, int size, int aux) {
    if (size > 0) {
        subtring(ch, size - 1);
        printf("%c", ch[size - 1]);
    }
}

int main(int argc, char const *argv[]) {
  char ch[100];

   printf("Digite uma palavra -> ");
   gets(ch);

   int size = strlen(ch);

   subtring(ch, size);

   return 0;

}
    
asked by anonymous 10.06.2018 / 22:40

2 answers

0

Here is the code you want: 

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef char string[100];

void substrings(string str) {
    if (strlen(str) >= 1) {
        puts(str);
        substrings(str + 1);
    }
}

void todas_substrings(string str) {
    int tam = strlen(str);

    if(tam >= 1) {
        substrings(str);
        str[tam - 1] = '
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef char string[100];

void substrings(string str) {
    if (strlen(str) >= 1) {
        puts(str);
        substrings(str + 1);
    }
}

void todas_substrings(string str) {
    int tam = strlen(str);

    if(tam >= 1) {
        substrings(str);
        str[tam - 1] = '%pre%';
        todas_substrings(str);
    }
}

int main(int argc, char const *argv[]) {
    string str = "UTFPR";
    todas_substrings(str);
    return 0;
}

';
        todas_substrings(str);
    }
}

int main(int argc, char const *argv[]) {
    string str = "UTFPR";
    todas_substrings(str);
    return 0;
}
    
13.06.2018 / 21:59
1
#include <stdio.h>
#include <stdlib.h>

char* substr(char* stringOriginal) {
    char *p;
    char *s;

    p = stringOriginal + 1;

    if (!*stringOriginal || !*p) return 0;

    s = substr(p);

    if (s) 
    {
        printf("%s\n", s);
    }

    return p;
}

int main(int argc, char* argv[]) 
{
    char palavra[80];

    printf("Digite a palavra: ");

    fgets(palavra, 80, stdin);

    printf("%s\n", palavra);

    substr(palavra);

    return 0;
}
    
11.06.2018 / 00:30
Error when testing sky sandbox Script that receives a list of integers, sorts and removes duplicates