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The One On The Last Night CodeChef Solution

Problem -The One On The Last Night CodeChef Solution

This website is dedicated for CodeChef solution where we will publish right solution of all your favourite CodeChef problems along with detailed explanatory of different competitive programming concepts and languages.

The One On The Last Night CodeChef Solution in C++17

#include <vector>
#include <iostream>
#include <bits/stdc++.h>
using namespace std;


int main(void)
{
    int T;
    cin>>T;

    while(T--)
    {
        int N, K;
        vector<int> digits (0);
        cin>>N>>K;
        while(N>0)
        {
            digits.push_back(N%10);
            N/=10;
        }
        sort(digits.begin(),digits.end());

        int size=digits.size();
        while(K--)
        {
            if(digits.at(0)==9)
            {
                break;
            }
            else
            {
                digits.at(0)+=1;
            }
            if(size>1)
            {
                if(digits.at(0)>digits.at(1))
                {
                    sort(digits.begin(),digits.end());
                }
            }
            
        }
        int value {1};
        for(auto &d:digits)
        {
            value*=d;
        }

        cout<<value<<endl;
    }
}

The One On The Last Night CodeChef Solution in C++14

#include<bits/stdc++.h>
using namespace std;

#define ll long long
#define endl "\n"


int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    ll t;
    cin>>t;
    while(t--)
    {
        ll n,k;
        cin>>n>>k;
        
        vector<ll> v;
        while(n>0)
        {
            v.push_back(n%10);
            n/=10;
        }
        
        for(int i=0;i<k;i++)
        {
            sort(v.begin(),v.end());
            if(v[0]==9)
            break;
            
            v[0]++;
        }
        
        ll p=1;
        for(auto &e:v)
        p*=e;
        
        cout<<p<<endl;
    }
}

The One On The Last Night CodeChef Solution in PYTH 3

for _ in range(int(input())):
    n,k=map(int,input().split())
    l=[]
    while n!=0:
        r=n%10
        n=n//10
        l.append(r)
    for i in range(k):
        m=min(l)
        if m==9:
            break
        l[l.index(m)]+=1
    s=1
    for j in l:
        s*=j
    print(s)

The One On The Last Night CodeChef Solution in C

#include <stdio.h>

int main(void) {
    int t;
    scanf("%d",&t);
    while(t--)
    {
        int n,k,r;
        scanf("%d %d",&n,&k);
        r=n;
        int min=0,max=0; int i=0; int c=0; int y=0; int flag=1;
        while(n!=0)
        {
            int d=n%10;
            c++;
            if(d>max)
            max=d;
            n/=10;
        }
        int a[c];
        min=max;
         while(r!=0)
        {
            int d=r%10;
            a[i]=d;
            r/=10;
            i++;
        }
        if(k==0)
        {
            for( int i=0; i<c;i++)
            {
                flag*=a[i];
            }
            printf("%d\n",flag);
        }
        else
        {
        while(k!=0)
        {
        for( int i=0; i<c; i++)
        {
            if(a[i]<min)
            {
                min=a[i];
                y=i;
            }
            
        }
        if(min==9)
        break;
        min+=1;
        a[y]=min;
        k--;
        }
         for( int i=0; i<c;i++)
            {
                flag*=a[i];
            }
            printf("%d\n",flag);
        }

    }
	// your code goes here
	return 0;
}

The One On The Last Night CodeChef Solution in JAVA

/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc = new Scanner(System.in);
		{
		  if(sc.hasNext())
		  {
			  int t=sc.nextInt();
			 // List<String> output=new ArrayList<>();
			  for(int i=0;i<t;i++)
			  {
			    int n=sc.nextInt();
			    int k=sc.nextInt();
			   	Queue<Integer> pq=new PriorityQueue<>();
			    int dummy=n;
    			while(dummy>0){
    			    pq.offer(dummy%10);
    			    dummy/=10;
    			}
		    	long res=1;
			while(k-->0){
			    if(pq.peek()<9)
			        pq.offer(pq.poll()+1);
			    
			}
			while(!pq.isEmpty()){
			    res=res*(pq.poll());
			}
			
			System.out.println(res);
			  }
		  }
		}
		
	}
}

The One On The Last Night CodeChef Solution in PYPY 3

from sys import stdin, stdout
T = int(stdin.readline())
for i in range(T):
    N, K = map(int, stdin.readline().strip().split())
    N = list(map(int, list(str(N))))
    M = sorted(N)
    while(K!=0):
        if M[0]==9:
            break
        else:
            
            M[0]+=1 
            if 1<len(M):
                if M[1]<M[0]:
                    M.sort()
                else:
                    pass
        K-=1 
    multiplication = 1 
    for j in M:
        multiplication*=j 
    stdout.write(f"{multiplication}\n")
        
    

The One On The Last Night CodeChef Solution in PYTH

t = int(raw_input())
for i in range(t):
	st = raw_input().split()
	N = int(st[0])
	K = int(st[1])
	L = [0 for x in range(10)]
	while N > 0:
		d = N%10
		N = N/10
		L[d] += 1
	# endwhile
	p = 0
	while (K > 0) and (p < 9):
		n = min(K,L[p])
		L[p] -= n
		L[p+1] += n
		K -= n
		p += 1
	# endwhile
	r = 1
	for p in range(10):
		n = L[p]
		if n > 0:
			r = r*p**n
		# endif
	# endfor p
	print r
# endfor i

The One On The Last Night CodeChef Solution in C#

#region usings
using System;
using System.IO;
using System.Text;
using System.Linq;
using System.Collections;
using static System.Math;
using static System.Array;
using static System.Convert;
using System.Collections.Generic;
using System.Runtime.CompilerServices;

#endregion
namespace CodeChef
{
    public class Solution
    {
        private static readonly Scanner sc = new Scanner();
        static void Main()
        {
            int testCases = sc.ReadInt();
            while (testCases-- > 0)
            {
                long[] nk = sc.ReadLongArr();
                Solve(nk);
            }
            sc.Flush();
            sc.Close();
        }

        private static void Solve(long[] nk)
        {
            long n = nk[0], k = nk[1];
            List<long> digits = new List<long>();
            while (n > 0)
            {
                digits.Add(n % 10);
                n = n / 10;
            }
            int i = 0;
            while (i < k)
            {
                var m = digits.Min();
                if (m == 9)
                    break;
                else
                {
                    var a = digits.IndexOf(m);
                    digits[a] = m + 1;
                    i += 1;
                }
            }
            sc.WriteLine(digits.Aggregate((item, next) => item * next));
        }
    }
    public class Scanner
    {

#if (!DEBUG)
        public static StreamReader streamReader = new StreamReader(Console.OpenStandardInput());
        public static StreamWriter streamWriter = new StreamWriter(Console.OpenStandardOutput());
#else
        public static StreamReader streamReader = new StreamReader(@"c:\users\869963\source\repos\competitive\Codechef\TextFile1.txt");
        public static StreamWriter streamWriter = new StreamWriter(@"c:\users\869963\source\repos\competitive\Codechef\TextFile2.txt");
#endif
        #region Input
        public int ReadInt()
        {
            return Convert.ToInt32(streamReader.ReadLine());
        }
        public string ReadLine()
        {
            return streamReader.ReadLine();
        }
        public long ReadLong()
        {
            return Convert.ToInt64(streamReader.ReadLine());
        }
        public double ReadDouble()
        {
            return Convert.ToDouble(streamReader.ReadLine());
        }
        public int[] ReadIntArr()
        {
            return ConvertAll(streamReader.ReadLine().TrimEnd().Split(' '), t => Convert.ToInt32(t));
        }
        public float[] ReadFloatArr()
        {
            return ConvertAll(streamReader.ReadLine().TrimEnd().Split(' '), t => float.Parse(t));
        }
        public long[] ReadLongArr()
        {
            return ConvertAll(streamReader.ReadLine().TrimEnd().Split(' '), t => Convert.ToInt64(t));
        }
        public char[] ReadCharArr()
        {
            return streamReader.ReadLine().ToCharArray();
        }
        public int[][] ReadInt2DArr(long n)
        {
            int[][] res = new int[n][];
            for (int i = 0; i < n; i++)
            {
                res[i] = ReadIntArr();
            }
            return res;
        }

        #endregion
        #region Output
        public void Write<T>(T t)
        {
            streamWriter.Write(t);
        }
        public void WriteLine<T>(T result)
        {
            streamWriter.WriteLine(result);
        }
        public void WriteArray<T>(T[] secondHalf)
        {
            for (int i = 0; i < secondHalf.Length; i++)
            {
                streamWriter.WriteLine(secondHalf[i] + " ");
            }
            WriteLine("");
        }
        public void Write2DMatrix<T>(T[][] sum)
        {
            for (int i = 0; i < sum.Length; i++)
            {
                for (int j = 0; j < sum[i].Length; j++)
                {
                    Write<string>($"{sum[i][j]}");
                }
                WriteLine<string>("");
            }
        }
        public void YESNO(bool condition)
        {
            WriteLine(condition ? "YES" : "NO");
        }
        public void YesNo(bool condition)
        {
            WriteLine(condition ? "Yes" : "No");
        }
        public void yesno(bool condition)
        {
            WriteLine(condition ? "yes" : "no");
        }
        public void Flush()
        {
            streamWriter.Flush();
        }
        public void Close()
        {
            streamReader.Close();
            streamWriter.Close();
        }

        #endregion
    }
    public class Utilities
    {
        public static long PowerModular(long x, long y)
        {
            long res = 1;

            while (y > 0)
            {
                if ((y & 1) != 0)
                    res = res * x;
                y = y >> 1;
                x = x * x;
            }
            return res;
        }
        public static T MostFrequent<T>(IEnumerable<T> source)
        {
            T res = source.GroupBy(auto => auto).OrderByDescending(g => g.Count()).First().Key;
            return res;
        }
        public static long NearestPrime(long n)
        {
            if (n % 2 != 0)
                n -= 2;
            else
                n--;

            int i, j;
            for (i = (int)n; i >= 2; i -= 2)
            {
                if (i % 2 == 0)
                    continue;
                for (j = 3; j <= Math.Sqrt(i); j += 2)
                {
                    if (i % j == 0)
                        break;
                }
                if (j > Math.Sqrt(i))
                    return i;
            }
            return 2;
        }
        public static long GCD(long a, long b)
        {
            if (b == 0)
                return a;
            return GCD(b, a % b);
        }
        public static long LCM(long a, long b)
        {
            return (a / GCD(a, b)) * b;
        }
        public static long[] SieveOfEratosthenes(int n)
        {
            bool[] prime = new bool[n + 1];
            long j = 0; long[] arr = new long[n];
            for (int i = 0; i < n; i++)
                prime[i] = true;

            for (int p = 2; p * p <= n; p++)
            {
                if (prime[p] == true)
                {
                    for (int i = p * p; i <= n; i += p)
                        prime[i] = false;
                }
            }
            for (int i = 2; i <= n; i++)
            {
                if (prime[i] == true)
                {
                    arr[j] = i;
                    j++;
                }
            }
            return arr;
        }
    }
}

The One On The Last Night CodeChef Solution in GO

package main

import (
	"bufio"
	"bytes"
	"container/heap"
	"fmt"
	"os"
	"sort"
)

func main() {
	reader := bufio.NewReader(os.Stdin)

	tc := readNum(reader)

	var buf bytes.Buffer

	for tc > 0 {
		tc--
		n, m := readTwoNums(reader)

		res := solve(n, m)
		buf.WriteString(fmt.Sprintf("%d\n", res))
	}
	fmt.Print(buf.String())
}

func readInt(bytes []byte, from int, val *int) int {
	i := from
	sign := 1
	if bytes[i] == '-' {
		sign = -1
		i++
	}
	tmp := 0
	for i < len(bytes) && bytes[i] >= '0' && bytes[i] <= '9' {
		tmp = tmp*10 + int(bytes[i]-'0')
		i++
	}
	*val = tmp * sign
	return i
}

func readNum(reader *bufio.Reader) (a int) {
	bs, _ := reader.ReadBytes('\n')
	readInt(bs, 0, &a)
	return
}

func readTwoNums(reader *bufio.Reader) (a int, b int) {
	res := readNNums(reader, 2)
	a, b = res[0], res[1]
	return
}

func readThreeNums(reader *bufio.Reader) (a int, b int, c int) {
	res := readNNums(reader, 3)
	a, b, c = res[0], res[1], res[2]
	return
}

func readNNums(reader *bufio.Reader, n int) []int {
	res := make([]int, n)
	x := 0
	bs, _ := reader.ReadBytes('\n')
	for i := 0; i < n; i++ {
		for x < len(bs) && (bs[x] < '0' || bs[x] > '9') && bs[x] != '-' {
			x++
		}
		x = readInt(bs, x, &res[i])
	}
	return res
}

func readUint64(bytes []byte, from int, val *uint64) int {
	i := from

	var tmp uint64
	for i < len(bytes) && bytes[i] >= '0' && bytes[i] <= '9' {
		tmp = tmp*10 + uint64(bytes[i]-'0')
		i++
	}
	*val = tmp

	return i
}

func solve(n int, k int) int64 {
	var arr []int
	for n > 0 {
		arr = append(arr, n%10)
		n /= 10
	}
	sort.Ints(arr)
	//first make 0 to 1 possible
	for i := 0; i < len(arr) && k > 0; i++ {
		if arr[i] == 0 {
			arr[i]++
			k--
		}
	}
	// if a < b, (a + 1) * b > a * (b + 1)
	if k == 0 {
		return product(arr)
	}

	// arr[i] <= 9, len(arr) < 10
	pq := IntHeap(arr)
	heap.Init(&pq)

	for k > 0 && pq[0] < 9 {
		cur := heap.Pop(&pq).(int)
		cur++
		heap.Push(&pq, cur)
		k--
	}

	return product(arr)
}

func min(a, b int) int {
	if a <= b {
		return a
	}
	return b
}

func product(arr []int) int64 {
	var res int64 = 1
	for _, num := range arr {
		res *= int64(num)
	}

	return res
}

// An IntHeap is a min-heap of ints.
type IntHeap []int

func (h IntHeap) Len() int           { return len(h) }
func (h IntHeap) Less(i, j int) bool { return h[i] < h[j] }
func (h IntHeap) Swap(i, j int)      { h[i], h[j] = h[j], h[i] }

func (h *IntHeap) Push(x interface{}) {
	// Push and Pop use pointer receivers because they modify the slice's length,
	// not just its contents.
	*h = append(*h, x.(int))
}

func (h *IntHeap) Pop() interface{} {
	old := *h
	n := len(old)
	x := old[n-1]
	*h = old[0 : n-1]
	return x
}
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