Calculate maximum value using ‘+’ or ‘*’ sign between two numbers in a string
Given a string of numbers, the task is to find the maximum value from the string, you can add a ‘+’ or ‘*’ sign between any two numbers.
Examples:
Input : 01231 Output : ((((0 + 1) + 2) * 3) + 1) = 10 In above manner, we get the maximum value i.e. 10 Input : 891 Output :73 As 8*9*1 = 72 and 8*9+1 = 73.So, 73 is maximum.
Asked in : Facebook
The task is pretty simple as we can get the maximum value on multiplying all values but the point is to handle the case of 0 and 1 i.e. On multiplying with 0 and 1 we get the lower value as compared to on adding with 0 and 1.
So, use ‘*’ sign between any two numbers(except numbers containing 0 and 1) and use ‘+’ if any of the numbers is 0 and 1.
C++
// C++ program to find maximum value#include <bits/stdc++.h>using namespace std;// Function to calculate the valueint calcMaxValue(string str){ // Store first character as integer // in result int res = str[0] -'0'; // Start traversing the string for (int i = 1; i < str.length(); i++) { // Check if any of the two numbers // is 0 or 1, If yes then add current // element if (str[i] == '0' || str[i] == '1' || res < 2 ) res += (str[i]-'0'); // Else multiply else res *= (str[i]-'0'); } // Return maximum value return res;}// Drivers codeint main(){ string str = "01891"; cout << calcMaxValue(str); return 0;} |
Java
// Java program to find maximum valuepublic class GFG{ // Method to calculate the value static int calcMaxValue(String str) { // Store first character as integer // in result int res = str.charAt(0) -'0'; // Start traversing the string for (int i = 1; i < str.length(); i++) { // Check if any of the two numbers // is 0 or 1, If yes then add current // element if (str.charAt(i) == '0' || str.charAt(i) == '1' || res < 2 ) res += (str.charAt(i)-'0'); // Else multiply else res *= (str.charAt(i)-'0'); } // Return maximum value return res; } // Driver Method public static void main(String[] args) { String str = "01891"; System.out.println(calcMaxValue(str)); }} |
Python3
# Python program to find maximum value# Function to calculate the valuedef calcMaxValue(str): # Store first character as integer # in result res = ord(str[0]) - 48 # Start traversing the string for i in range(1, len(str)): # Check if any of the two numbers # is 0 or 1, If yes then add current # element if(str[i] == '0' or str[i] == '1' or res < 2): res += ord(str[i]) - 48 else: res *= ord(str[i]) - 48 return res # Driver codeif __name__== "__main__": str = "01891"; print(calcMaxValue(str)); # This code is contributed by Sairahul Jella |
C#
//C# program to find maximum valueusing System;class GFG{ // Method to calculate the value static int calcMaxValue(String str) { // Store first character as integer // in result int res = str[0] -'0'; // Start traversing the string for (int i = 1; i < str.Length; i++) { // Check if any of the two numbers // is 0 or 1, If yes then add current // element if (str[i] == '0' || str[i] == '1' || res < 2 ) res += (str[i] - '0'); // Else multiply else res *= (str[i] - '0'); } // Return maximum value return res; } // Driver Code static public void Main () { String str = "01891"; Console.Write(calcMaxValue(str)); }}// This code is contributed by jit_t |
PHP
<?php// PHP program to find// maximum value// Function to calculate// the valuefunction calcMaxValue($str){ // Store first character // as integer in result $res = $str[0] - '0'; // Start traversing // the string for ($i = 1; $i < strlen($str); $i++) { // Check if any of the // two numbers is 0 or // 1, If yes then add // current element if ($str[$i] == '0' || $str[$i] == '1' || $res < 2 ) $res += ($str[$i] - '0'); // Else multiply else $res *= ($str[$i] - '0'); } // Return maximum value return $res;}// Driver code$str = "01891";echo calcMaxValue($str);// This code is contributed by ajit?> |
Javascript
<script> // Javascript program to // find maximum value // Method to calculate the value function calcMaxValue(str) { // Store first character as integer // in result let res = str[0].charCodeAt() - '0'.charCodeAt(); // Start traversing the string for (let i = 1; i < str.length; i++) { // Check if any of the two numbers // is 0 or 1, If yes then add current // element if (str[i] == '0' || str[i] == '1' || res < 2 ) res += (str[i].charCodeAt() - '0'.charCodeAt()); // Else multiply else res *= (str[i].charCodeAt() - '0'.charCodeAt()); } // Return maximum value return res; } let str = "01891"; document.write(calcMaxValue(str)); </script> |
Output:
82
Above program consider the case of small inputs i.e. up to which C/C++ can handle the range of maximum value.
Reference :
https://www.careercup.com/question?id=5745795300065280
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