Base conversion, C++ (gcc)

Base conversion

//g++  5.4.0

#include <iostream>
int returnDecimal(char c);

char base36_digits[36] =
  {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
   'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
   'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
   'U', 'V', 'W', 'X', 'Y', 'Z'
  };

int main()
{
  
    int testCases;
    int baseOrig;
    int baseConvert;
    char orignal = 'N';
    char convert = '2';
    int value = 50000;
	std::string result;
    int index = 0;
    int baseValue1= returnDecimal(orignal);
    int baseValue2= returnDecimal(convert);

int converted_number[64];
	 while(value != 0){
    
      converted_number[index] = value%baseValue1;
      value = value / baseValue1;
      ++index;
	  //result=result +value;
	}
    --index;  //backup to the last entry index
    for( ; index > 0 ;index--){
      std::cout<<converted_number[index];   
    }
    
    
	 
   // while(testCases--){
        
        
    //}
    
    
    
}
int returnDecimal(char c){
     int decimalValue =0;
      for(int i=0;i<36;i++){
       if(base36_digits[i] == c){
           decimalValue = i;
         
       }
    }
    return decimalValue+1;
}


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