Dada una string, elimine todos los espacios de la string y devuélvala.
Input: "g eeks for ge eeks " Output: "geeksforgeeks"
La complejidad de tiempo esperada es O (n) y solo un recorrido de string.
C++
// An efficient C++ program to remove all spaces
// from a string
#include <iostream>
using namespace std;
// Function to remove all spaces from a given string
void removeSpaces(char *str)
{
// To keep track of non-space character count
int count = 0;
// Traverse the given string. If current character
// is not space, then place it at index 'count++'
for (int i = 0; str[i]; i++)
if (str[i] != ' ')
str[count++] = str[i]; // here count is
// incremented
str[count] = '\0';
}
// Driver program to test above function
int main()
{
char str[] = "g eeks for ge eeks ";
removeSpaces(str);
cout << str;
return 0;
}
Java
// An efficient Java program to remove all spaces
// from a string
class GFG
{
// Function to remove all spaces
// from a given string
static int removeSpaces(char []str)
{
// To keep track of non-space character count
int count = 0;
// Traverse the given string.
// If current character
// is not space, then place
// it at index 'count++'
for (int i = 0; i<str.length; i++)
if (str[i] != ' ')
str[count++] = str[i]; // here count is
// incremented
return count;
}
// Driver code
public static void main(String[] args)
{
char str[] = "g eeks for ge eeks ".toCharArray();
int i = removeSpaces(str);
System.out.println(String.valueOf(str).subSequence(0, i));
}
}
// This code is contributed by Rajput-Ji
Python
# Python program to Remove spaces from a given string # Function to remove all spaces from a given string def removeSpaces(string): # To keep track of non-space character count count = 0 list = [] # Traverse the given string. If current character # is not space, then place it at index 'count++' for i in xrange(len(string)): if string[i] != ' ': list.append(string[i]) return toString(list) # Utility Function def toString(List): return ''.join(List) # Driver program string = "g eeks for ge eeks " print removeSpaces(string) # This code is contributed by Bhavya Jain
C#
// An efficient C# program to remove all
// spaces from a string
using System;
class GFG
{
// Function to remove all spaces
// from a given string
static int removeSpaces(char []str)
{
// To keep track of non-space
// character count
int count = 0;
// Traverse the given string. If current
// character is not space, then place
// it at index 'count++'
for (int i = 0; i < str.Length; i++)
if (str[i] != ' ')
str[count++] = str[i]; // here count is
// incremented
return count;
}
// Driver code
public static void Main(String[] args)
{
char []str = "g eeks for ge eeks ".ToCharArray();
int i = removeSpaces(str);
Console.WriteLine(String.Join("", str).Substring(0, i));
}
}
// This code is contributed by 29AjayKumar
Javascript
<script>
// An efficient JavaScript program to remove all
// spaces from a string
// Function to remove all spaces
// from a given string
function removeSpaces(str) {
// To keep track of non-space
// character count
var count = 0;
// Traverse the given string. If current
// character is not space, then place
// it at index 'count++'
for (var i = 0; i < str.length; i++)
if (str[i] !== " ") str[count++] = str[i];
// here count is
// incremented
return count;
}
// Driver code
var str = "g eeks for ge eeks ".split("");
var i = removeSpaces(str);
document.write(str.join("").substring(0, i));
</script>
C++
// CPP program to Remove spaces
// from a given string
#include <iostream>
#include <algorithm>
using namespace std;
// Function to remove all spaces from a given string
string removeSpaces(string str)
{
str.erase(remove(str.begin(), str.end(), ' '), str.end());
return str;
}
// Driver program to test above function
int main()
{
string str = "g eeks for ge eeks ";
str = removeSpaces(str);
cout << str;
return 0;
}
// This code is contributed by Divyam Madaan
Java
// Java program to remove
// all spaces from a string
class GFG {
// Function to remove all
// spaces from a given string
static String removeSpace(String str)
{
str = str.replaceAll("\\s","");
return str;
}
// Driver Code
public static void main(String args[])
{
String str = "g eeks for ge eeks ";
System.out.println(removeSpace(str));
}
}
// This code is contributed by Kanhaiya.
Python
# Python program to Remove spaces from a given string
# Function to remove all spaces from a given string
def removeSpaces(string):
string = string.replace(' ','')
return string
# Driver program
string = "g eeks for ge eeks "
print(removeSpaces(string))
# This code is contributed by Divyam Madaan
C#
// C# program to remove
// all spaces from a string
using System;
class GFG
{
// Function to remove all
// spaces from a given string
static String removeSpace(String str)
{
str = str.Replace(" ","");
return str;
}
// Driver Code
public static void Main()
{
String str = "g eeks for ge eeks ";
Console.WriteLine(removeSpace(str));
}
}
// This code is contributed by
// PrinciRaj1992
Javascript
<script>
// javascript program to remove
// all spaces from a string
// Function to remove all
// spaces from a given string
function removeSpace( str)
{
str = str.replace(/\s/g,'')
return str;
}
// Driver Code
var str = "g eeks for ge eeks ";
document.write(removeSpace(str));
// This code contributed by aashish1995
</script>
C++
#include <bits/stdc++.h>
using namespace std;
int main()
{
string s = "g e e k s f o r g e e k s";
cout << "string with spaces is " << s << endl;
int l = s.length(); // storing the length of the string
int c
= count(s.begin(), s.end(),
' '); // counting the number of whitespaces
remove(s.begin(), s.end(),
' '); // removing all the whitespaces
s.resize(l - c); // resizing the string to l-c
cout << "string without spaces is " << s << endl;
return 0;
}
Publicación traducida automáticamente
Artículo escrito por GeeksforGeeks-1 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA