С++
#include <iostream>

using namespace std;

void convertToBase(int num, int base) {

   char symbols[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";

   string result = "";

   while (num > 0) {

       int remainder = num % base;

       result = symbols[remainder] + result;

       num /= base;

   }

   cout << result << endl;

}

int main() {

   int number, base;

   cout << "Enter a decimal number: ";

   cin >> number;

   cout << "Enter the base to convert to (up to 37): ";

   cin >> base;

   convertToBase(number, base);

   return 0;

}