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Any Base To Decimal | aCoding | Day 13

Problem:

1. You are given a number n.
2. You are given a base b. n is a number on base b.
3. You are required to convert the number n into its corresponding value in decimal number system.
Input Format
A number n
A base b
Output Format
A decimal number representing corresponding value of n in base b.
Constraints
0 <= d <= 1000000000
2 <= b <= 10
  
Sample Input
111001
2
Sample Output
57

Solution:

import java.util.*;
  
  public class Main{
  
  public static void main(String[] args) {
      Scanner scn = new Scanner(System.in);
      int n = scn.nextInt();
      int b = scn.nextInt();
      int d = getValueIndecimal(n, b);
      System.out.println(d);
   }
  
   public static int getValueIndecimal(int n, int b){
      // write your code here
      int pow = 1,newN = 0;
      
      while(n >0){
          newN += (n%10) * pow;
          pow*=b;
          n/=10;
      }
      
      return newN;
   }
  }

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