Write a program to Validate an IPv4 Address. According to Wikipedia, IPv4 addresses are canonically represented in dot-decimal notation, which consists of four decimal numbers, each ranging from 0 to 255, separated by dots, e.g., 172.16.254.1 . The generalized form of an IPv4 address is (0-255).(0-255).(0-255).(0-255). Here we are considering numbers only from 0 to 255 and any additional leading zeroes will be considered invalid. Your task is to complete the function isValid which returns 1, if the ip address is valid else returns 0. The function takes a string s as its only argument . **************************************************************************/ // SOLUTION (in C++): #include <bits/stdc++.h> using namespace std; int isValid(string s) { s += '.'; int countDots = 0; string str = ""; for (int i = 0; i < s.length(); i++) { if (s[i] != '.') { if (s[i] >= 48 && s[i] <= 57) str += s[i]; else return0; } if (s[i] == '.') { if (str[0] == '.' && str.length() > 1) return0; stringstream obj(str); int x = 0; obj >> x; if (x < 0 || x > 255) return0; if (str.size() == 0) return0; countDots++; str = ""; } if (countDots == 4) return1; else return0; } } intmain() { string s; cin >> s; int k = isValid(s); if (k == 0) cout << "Valid" << endl; else.

The code provided checks whether a given string s represents a valid IPv4 address or not. It returns…

Answered: According to Wikipedia, IPv4 addresses…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Write a program to Validate an IPv4 Address.

	According to Wikipedia, IPv4 addresses are canonically represented in
	dot-decimal notation, which consists of four decimal numbers,
	each ranging from 0 to 255, separated by dots, e.g., 172.16.254.1 .


	The generalized form of an IPv4 address is (0-255).(0-255).(0-255).(0-255).
	Here we are considering numbers only from 0 to 255 and
	any additional leading zeroes will be considered invalid.

	Your task is to complete the function isValid which returns 1,
	if the ip address is valid else returns 0.

	The function takes a string s as its only argument .

	**************************************************************************/

	// SOLUTION (in C++):

	#include <bits/stdc++.h>

	using namespace std;

	int isValid(string s)
	{
	s += '.';
	int countDots = 0;
	string str = "";
	for (int i = 0; i < s.length(); i++)
	{
	if (s[i] != '.')
	{
	if (s[i] >= 48 && s[i] <= 57)
	str += s[i];
	else
	return0;
	}
	if (s[i] == '.')
	{
	if (str[0] == '.' && str.length() > 1)
	return0;
	stringstream obj(str);
	int x = 0;
	obj >> x;
	if (x < 0 \|\| x > 255)
	return0;
	if (str.size() == 0)
	return0;
	countDots++;
	str = "";
	}
	if (countDots == 4)
	return1;
	else
	return0;
	}
	}
	intmain()
	{
	string s;
	cin >> s;
	int k = isValid(s);
	if (k == 0)
	cout << "Valid" << endl;
	else.

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