Insert values into array in C

Question

Wished Input ->

"Enter a word: program"
"Enter a postion to know where to start cutting: 2"
"Enter the following quantity to end up: 4"

Wished Output ->

ogra

This is my code, but I don't know how to insert values into a different array

#include <stdio.h>
#include <string.h>
int main (){

    char word[100], cutword[50];
    int on, off, i, j;

    printf("Entra a word: ");
    gets(word);
    printf("Enter a postion to know where to start cutting: ");
    scanf("%d", &on);
    printf("Enter the following quantity to end up: ");
    scanf("%d", &off);

    for (i = 0; i<strlen(word); i++){
        if (i >= on && i <= off) ¿cutword[]? = word[i];
    }

    for (j = 0; j<strlen(cutword); j++){
        printf("%c", cutword[j]);
    }

}

What is that ¿cutword[]?

Artur
– Artur

2013-11-23 19:45:50 +00:00
Commented Nov 23, 2013 at 19:45 — Artur
– Artur, Commented Nov 23, 2013 at 19:45

user3014562 · Accepted Answer · 2013-11-23 19:20:12Z

3

int k = 0;
int l = on + off;
for (i = on; i < l; i++){
    cutword[k++] = word[i];
}

for (j = 0; j < k; j++){
    printf("%c", cutword[j]);
}

Put some additional if to validate the input and check array boundaries before these loops.

answered Nov 23, 2013 at 19:20

user3014562

Sign up to request clarification or add additional context in comments.

Comments

corn3lius · Accepted Answer · 2013-11-23 19:28:00Z

0

// if there is enough room in the buffers
if( strlen(word) > off) {
   // copy from    word + (offset) 
   //      to  cutword[0] 
   //      off number of characters
   memcpy(cutword, word + on, off ); 
}

thats if you want from position 2 get 4 characters

your code gets position 2 to position 4.

edited Nov 23, 2013 at 19:28

answered Nov 23, 2013 at 19:16

corn3lius

5,0053 gold badges33 silver badges37 bronze badges

2 Comments

frankie3 Over a year ago

and without a a prepared function how would it be?

corn3lius Over a year ago

@frankie3 you for loop only considers on until off or word[2] through word[4] .. if you replace the for loop in your code with memcpy it will move all 4 character at one time as opposed to one ata time.

haccks · Accepted Answer · 2013-11-23 19:32:05Z

0

Problem is with your first for loop. Iterate it only up to off + on and replace your ¿cutword[]? = word[i]; part with cutword[j++] = word[i]; Try this

for (j = 0; i = 0; i < off + on; i++){
    if (i >= on && i <= off)
        cutword[j++] = word[i];
}
cutword[j] = '\0';
puts(cutword);

edited Nov 23, 2013 at 19:32

answered Nov 23, 2013 at 19:21

haccks

107k28 gold badges181 silver badges274 bronze badges

Collectives™ on Stack Overflow

Insert values into array in C

3 Answers 3

Comments

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related