Problem: 2050D - Digital string maximization
Language: python

Solution 1 (runtime: 202 ms):
from functools import *
from itertools import *
from collections import *
from math import *
from bisect import *
from heapq import *

def factors(n):
    i = 1
    res = []
    while i <= sqrt(n):
        if (n % i == 0):
            if (n / i == i):
                res.append(i)
            else:
                res.append(i)
                res.append(n//i)
        i = i + 1
    return res

def prime_factors(n):
    i = 2
    factors = []
    while i * i <= n:
        if n % i:
            i += 1
        else:
            n //= i
            factors.append(i)
    if n > 1:
        factors.append(n)
    return factors

def largest_prime_factor(n):
    i = 2
    while i * i <= n:
        if n % i:
            i += 1
        else:
            n //= i
    return n

def sieve(n):
    prime = [True for i in range(n+1)]
    p = 2
    while (p * p <= n):
        if (prime[p] == True):
            for i in range(p * p, n+1, p):
                prime[i] = False
        p += 1

    return prime

MOD=10**9+7
class Factorial:
    def __init__(self, MOD):
        self.MOD = MOD
        self.factorials = [1, 1]
        self.invModulos = [0, 1]
        self.invFactorial_ = [1, 1]
 
    def calc(self, n):
        if n <= -1:
            print("Invalid argument to calculate n!")
            print("n must be non-negative value. But the argument was " + str(n))
            exit()
        if n < len(self.factorials):
            return self.factorials[n]
        nextArr = [0] * (n + 1 - len(self.factorials))
        initialI = len(self.factorials)
        prev = self.factorials[-1]
        m = self.MOD
        for i in range(initialI, n + 1):
            prev = nextArr[i - initialI] = prev * i % m
        self.factorials += nextArr
        return self.factorials[n]
 
    def inv(self, n):
        if n <= -1:
            print("Invalid argument to calculate n^(-1)")
            print("n must be non-negative value. But the argument was " + str(n))
            exit()
        p = self.MOD
        pi = n % p
        if pi < len(self.invModulos):
            return self.invModulos[pi]
        nextArr = [0] * (n + 1 - len(self.invModulos))
        initialI = len(self.invModulos)
        for i in range(initialI, min(p, n + 1)):
            next = -self.invModulos[p % i] * (p // i) % p
            self.invModulos.append(next)
        return self.invModulos[pi]
 
    def invFactorial(self, n):
        if n <= -1:
            print("Invalid argument to calculate (n^(-1))!")
            print("n must be non-negative value. But the argument was " + str(n))
            exit()
        if n < len(self.invFactorial_):
            return self.invFactorial_[n]
        self.inv(n)  # To make sure already calculated n^-1
        nextArr = [0] * (n + 1 - len(self.invFactorial_))
        initialI = len(self.invFactorial_)
        prev = self.invFactorial_[-1]
        p = self.MOD
        for i in range(initialI, n + 1):
            prev = nextArr[i - initialI] = (prev * self.invModulos[i % p]) % p
        self.invFactorial_ += nextArr
        return self.invFactorial_[n]
 
class Combination:
    def __init__(self, MOD):
        self.MOD = MOD
        self.factorial = Factorial(MOD)
 
    def ncr(self, n, k):
        if k < 0 or n < k:
            return 0
        k = min(k, n - k)
        f = self.factorial
        return f.calc(n) * f.invFactorial(max(n - k, k)) * f.invFactorial(min(k, n - k)) % self.MOD

for _ in range(int(input())):
    nums = list(map(int, list(input())))

    for q in range(10):
        finish = 1
        for i in range(len(nums)-1, 0, -1):
            if nums[i]-1>nums[i-1] and nums[i]>0:
                finish = 0
                nums[i], nums[i-1] = nums[i-1], nums[i]-1
        if finish: break

    for q in range(10):
        finish = 1
        for i in range(len(nums)-1):
            if nums[i]<nums[i+1]-1 and nums[i+1]>0:
                finish = 0
                nums[i], nums[i+1] = nums[i+1]-1, nums[i]
        if finish: break
            
    
    print("".join(map(str,nums)))
    

Solution 2 (runtime: 1077 ms):
import sys

data = sys.stdin.read().strip().splitlines()
t = int(data[0])
results = []

for case in range(1, t + 1):
    s = list(data[case])  # Convert string to a list for mutability
    n = len(s)
    
    for i in range(n):
        b = int(s[i])
        p = i
        
        for j in range(i, min(i + 10, n)):
            if int(s[j]) - (j - i) > b:
                b = int(s[j]) - (j - i)
                p = j
        
        while p > i:
            s[p], s[p - 1] = s[p - 1], s[p]  # Swap elements in the list
            p -= 1
        
        s[i] = str(b)  # Update the current position with the best value
    
    results.append(''.join(s))  # Join the list back into a string

for result in results:
    print(result)