can i divide my string input by spaces???

Question

like if i enter one input of "abc d ef" , it will act as i entered three inputs "abc" "d" and "ef" separately

Answer 1

code with examples:

https://code.sololearn.com/caQqCWTzExdv/?ref=app
https://code.sololearn.com/c6kVrpyofLTo/?ref=app

Answer 2

// C simple:
char word[100];
while (1) {
if (scanf("%s", &word) == EOF)
break;
printf("%s\n", word);
}
// C++
string word;
while (true) {
cin >> word;
if (cin.fail())
break;
cout << word << endl;
}

Answer 3

cin >> word; reads a chunk to the next space before processing it as integer, string, or whatever.

Answer 4

for C++ convenient to divide by spaces using a stream of lines:

#include <iostream>
#include <sstream>
#include <string>
using namespace std;
int main() {
string slinwords;
getline(cin, slinwords );
stringstream ss( slinwords );
string sword;
while( ss >> sword ){
//work with the word
//
};
}

or

int main() {
string sword;
while( cin >> sword ){
//work with the word
//
};
}

for C:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main() {
char slinwords[1000];
fgets( slinwords, sizeof(slinwords), stdin );
char* cwordb = slinwords;
char* cline = strchr(slinwords, 0);
int ilenw = 0;
char cword[1000];
if(cline!=cwordb)
do {
cworde = strchr(cwordb, ' ');
ilenw = (cworde?cworde:cline)-cwordb;
memcpy(cword,cwordb,ilenw);
cword[ilenw]=0;
//work with the word
//
if(cworde)cwordb = cworde + 1;
} while ( cworde != NULL );
return 0;
}

Answer 5

What problem, you are getting? Can you link your code?
Read the entire string, then using for loop
by if(s[i+1] == ' space')
Change s[i] ;

Answer 6

Sena T
#include <iostream>
#include <cstring>
using namespace std;

int main() {

string w;
int i;

getline(cin,w);
char c= w[0];

for(i = 0; i < w.length()-1;i++){
w[i]=w[i+1];
if(w[i+1]==' '){
w[i]=c;
c=w[i+2];i++;
}
}
cout<<w;
return 0;
}

Answer 7

Michail Getmanskiy thanks a lot! its a bit complex for my level though 😅

Answer 8

i mean sololearn does this..? but how does one implement this in c or c++

Answer 9

It's depends on what methods you used.
scanf read a word by word not entire line.
If you want read entire line, gets and fgets methods are there. Don't use gets method, use fgets method. Like
fgets(string, 20,stdin);
Where,
string is a char array,
20 is no. Of chars to be read, ex:,
stdin is input console.

In c++, getline(cin, s); method is available for alternative to cin.

Answer 10

Jayakrishna im using a char array s[] and i tried using getline(cin, s) to get input from the user but it doesnt work... im not familiar with strings nor library functions

Answer 11

The character array must be completely defined like:
char s[100];
getline(cin, s);

Answer 12

Sena T
You can take input into string directly in c++ instead of Char array. If you want to char by char input use like cin>>s[i] ; by loops...

Answer 13

i want to change the last letter of every word in a sentence that user inputs. i do not know how many words that sentence includes.

Answer 14

String s;
getline(cin, s);
Now s.length() gives you string length.
in loop for i=0 ; s.length()-1;i++
if(s[i+1]== 'SPACE')
s[i] ='change' ;

cout<<s;
Change your code according to this.
Sena T try it first by yourself.

Answer 15

Jayakrishna thanks a lot! finally, i can rest!

Answer 16

Sena T wel come...