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Chef and easy problem 2 CodeChef Solution
Problem -Chef and easy problem 2 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.
Chef and easy problem 2 CodeChef Solution in C++14
“#include <bits/stdc++.h>
//for policy based ds //p.order_of_key() -> returns index of value //*p.find_by_order(3) ->value at index
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp>
#include <functional> // for less
using namespace __gnu_pbds; //for policy based ds
using namespace std;
#define int long long
#define pii pair<int, int>
#define vi vector<int>
#define maxHeap priority_queue<int>;
#define minHeap priority_queue<int, vi, greater<int>>
#define mod 1000000007
#define inf 1e18
#define rep(i, s, n) for (int i = s; i < n; i++)
#define sp(ans, pre) fixed << setprecision(pre) << y
#define pb push_back
#define srt(v) sort(v.begin(), v.end())
#define all(v) begin(v), end(v)
#define inputArr(i, arr) \
for (int &i : arr) \
cin >> i;
#define ll long long
#define ull unsigned long long
#define lld long double
#define kickPrint(tt) cout << "Case #" << tt << ": "
typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> pbds;
time_t Begin;
//////////////////Debug///////////////
#define debug(x) \
cout << #x << " "; \
_print(x); \
cout << endl;
void _print(ll t)
{
cout << t;
}
//void _print(int t) {cout << t;}
void _print(string t) { cout << t; }
void _print(char t) { cout << t; }
void _print(lld t) { cout << t; }
void _print(double t) { cout << t; }
void _print(ull t) { cout << t; }
void display(ll a[], ll n)
{
for (ll i = 0; i < n; i++)
{
cout << a[i] << " ";
}
cout << endl;
}
template <class T, class V>
void _print(pair<T, V> p);
template <class T>
void _print(vector<T> v);
template <class T>
void _print(set<T> v);
template <class T, class V>
void _print(map<T, V> v);
template <class T>
void _print(multiset<T> v);
template <class T, class V>
void _print(pair<T, V> p)
{
cout << "{";
_print(p.ff);
cout << ",";
_print(p.ss);
cout << "}";
}
template <class T>
void _print(vector<T> v)
{
cout << "[ ";
for (T i : v)
{
_print(i);
cout << " ";
}
cout << "]";
}
template <class T>
void _print(set<T> v)
{
cout << "[ ";
for (T i : v)
{
_print(i);
cout << " ";
}
cout << "]";
}
template <class T>
void _print(multiset<T> v)
{
cout << "[ ";
for (T i : v)
{
_print(i);
cout << " ";
}
cout << "]";
}
template <class T, class V>
void _print(map<T, V> v)
{
cout << "[ ";
for (auto i : v)
{
_print(i);
cout << " ";
}
cout << "]";
}
template <typename T, typename U>
inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U>
inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; }
void init()
{
Begin = clock();
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
}
void timeTaken()
{
#ifndef ONLINE_JUDGE
double time_taken = double(clock() - Begin) / double(CLOCKS_PER_SEC);
cout << "Execution Time: " << fixed << setprecision(5) << time_taken << "s\n";
#endif
}
vector<int> computeLps(string s, int M)
{
int len = 0;
vector<int> lps(M + 20);
lps[0] = 0;
int i = 1;
while (i < M)
{
if (s[i] == s[len])
{
len++;
lps[i] = len;
i++;
}
else
{
if (len != 0)
{
len = lps[len - 1];
}
else
{
lps[i] = 0;
i++;
}
}
}
// debug(len);
return lps;
}
int ceiling(int x, int y)
{
int res = x / y;
if (x % y)
{
if (x >= 0)
res++;
}
return res;
}
vector<vector<int>> makePrefix(vector<vector<int>> &grid)
{
int n = grid.size(), m = grid[0].size();
vector<vector<int>> prefix(n + 1, vector<int>(m + 1));
for (int i = 0; i < n; i++)
{
for (int j = 0; j < m; j++)
{
prefix[i + 1][j + 1] = grid[i][j] + prefix[i][j + 1] + prefix[i + 1][j] - prefix[i][j];
}
}
return prefix;
}
int query(int x1, int y1, int x2, int y2, vector<vector<int>> &prefix)
{
// cout << x1 << " " << y1 << " " << x2 << " " << y2 << endl;
// cout << "query: " << prefix[x2 + 1][y2 + 1] << " " << prefix[x2 + 1][y1] << " " << prefix[x1][y2 + 1] << " " << prefix[x1][y2] << endl;
return prefix[x2 + 1][y2 + 1] - prefix[x2 + 1][y1] - prefix[x1][y2 + 1] + prefix[x1][y1];
}
int toInt(string &s)
{
int res = 0;
for (char c : s)
res = res * 10 + (c - '0');
return res;
}
bool isValid(int i, int j, int n, int m)
{
return i >= 0 && i < n && j >= 0 && j < m;
}
int dx[] = {-1, 0, 0, 1};
int dy[] = {0, 1, -1, 0};
int moduloExponentiation(int a, int b, int m)
{
if (b == 0)
return 1;
int res = moduloExponentiation(a, b / 2, m);
res = (res * res) % m;
if (b % 2)
res = (res * a) % m;
return res;
}
vector<int> smallesrPrimeDivisor(int n)
{
vector<int> arr(n + 1);
for (int i = 2; i <= n; i++)
{
if (arr[i])
continue;
for (int j = i; j <= n; j += i)
if (!arr[j])
arr[j] = i;
}
arr[1] = 1;
return arr;
}
// const int MX = 100000;
int32_t main()
{
init();
//--------------------
vector<int> smallestPrimeDivisorArr = smallesrPrimeDivisor(1e6 + 10);
int t = 1;
cin >> t;
for (int tt = 1; tt <= t; tt++)
{
int n;
cin >> n;
vector<int> arr(n);
inputArr(i, arr);
map<int, int> primeCnt;
for (int i : arr)
{
int x = i;
while (x > 1)
{
int pre = smallestPrimeDivisorArr[x];
int cnt = 0;
while (smallestPrimeDivisorArr[x] == pre)
{
x /= smallestPrimeDivisorArr[x];
cnt++;
}
primeCnt[pre] = max(primeCnt[pre], cnt);
}
}
int res = 0;
for (auto i : primeCnt)
res += i.second;
cout << res << "\n";
}
//---------------------------
timeTaken();
return 0;
}Chef and easy problem 2 CodeChef Solution in PYTH 3
“# cook your dish here
from collections import defaultdict
from sys import *
def input():
return stdin.readline()
a = [True] * 1000100
def primes_sieve2(limit):
a[0] = a[1] = False
l=[]
for (i, isprime) in enumerate(a):
if isprime:
l.append(i)
for n in range(i*i, limit, i):
a[n] = False
return l
prime=primes_sieve2(1000100)
fac=[[] for i in range(1000100)]
for i in prime:
for j in range(i,1000100,i):
fac[j].append(i)
def get(divisors):
div=fac[divisors]
new=defaultdict(int)
tar=divisors;ind=0;
while(tar>1):
fir=div[ind]
while(tar>1 and tar%fir==0):
tar//=fir;
new[fir]+=1
ind+=1
return new
for _ in range(int(input())):
n=int(input())
lis=[int(i) for i in input().split()]
vis=defaultdict(list);it=0
for i in lis:
for i,j in get(i).items():
vis[i].append(j)
for j in vis.values():
it+=max(j)
print(it)Chef and easy problem 2 CodeChef Solution in C
“#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#define inchar getchar_unlocked
inline int inPos()
{
int n = 0;
register int ch = inchar();
while (ch < '0' || ch > '9') ch = inchar();
while (ch >= '0' && ch <= '9')
{
n = (n << 3) + (n << 1) + (ch - '0');
ch = inchar();
}
return n;
}
int cmp(int *a, int *b)
{
return (*a>*b);
}
int main()
{
int i, j, x, k = 1, p[168], *c, t, a, b, max, pos;
c = (int *)calloc(998,sizeof(int));
p[0] = 2;
for (i=3; i<32; i+=2)
{
if (c[i]==0)
{
p[k++] = i;
for (j=i*i, x=i<<1; j<998; j+=x)
c[j] = 1;
}
}
for (;i<998; i+=2)
{
if (c[i]==0)
p[k++] = i;
}
t = inPos();
while (t--)
{
b = inPos();
int q, *ans, w[b], count=0, v=0;
ans = (int *)calloc(168,sizeof(int));
max = -1;
while (b--)
{
a = inPos();
pos = 0;
for (i=0; i<168; i++)
{
q = 0;
while (a%p[i]==0)
{
pos = i;
q++;
a = a/p[i];
}
if (q>ans[i])
ans[i] = q;
if (a==1)
break;
}
if (pos>max)
max = pos;
if (a!=1)
w[v++] = a;
}
qsort(w, v, sizeof(int), cmp);
for (i=0; i<=max; i++)
count += ans[i];
for (i=0; i<v; i++)
{
count++;
while (w[i]==w[i+1])
i++;
}
printf("%d\n", count);
}
return 0;
} Chef and easy problem 2 CodeChef Solution in JAVA
“
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import static java.lang.System.out;
class CodeChef{
static HashMap<Integer,Integer> map=new HashMap<>();
public static void main(String[] args) {
Scanner scanner=new Scanner(System.in);
int T=scanner.nextInt();
while(T-->0){
int n=scanner.nextInt();
int data[]=new int[n];
for(int i=0;i<n;i++)
data[i]=scanner.nextInt();
for(int i:data){
for(int j=2;j*j<=i;j++){
int count=0;
while(i%j==0){
count++;
i=i/j;
}
if(count>0){
if(map.containsKey(j)) map.put(j,Math.max(map.get(j),count));
else map.put(j,count);
}
}
if(i>1) if(!map.containsKey(i)) map.put(i,1);
}
int result=0;
for(Map.Entry<Integer,Integer> entry:map.entrySet())
result+=entry.getValue();
out.println(result);
map.clear();
}
}
}Chef and easy problem 2 CodeChef Solution in PYPY 3
“from collections import defaultdict
a = [True] * 1000100
def primes_sieve2(limit):
a[0] = a[1] = False
l=[]
for (i, isprime) in enumerate(a):
if isprime:
l.append(i)
for n in range(i*i, limit, i):
a[n] = False
return l
prime=primes_sieve2(1000100)
fac=[[] for i in range(1000100)]
for i in prime:
for j in range(i,1000100,i):
fac[j].append(i)
def get(divisors):
div=fac[divisors]
new=defaultdict(int)
tar=divisors;ind=0;
while(tar>1):
fir=div[ind]
while(tar>1 and tar%fir==0):
tar//=fir;
new[fir]+=1
ind+=1
return new
for _ in range(int(input())):
n=int(input())
lis=[int(i) for i in input().split()]
vis=defaultdict(list);it=0
for i in lis:
for i,j in get(i).items():
vis[i].append(j)
for j in vis.values():
it+=max(j)
print(it)Chef and easy problem 2 CodeChef Solution in PYTH
“# cook your code here
bound = 10 ** 6
prime = [[] for _ in xrange(bound+1)]
for i in range(2, bound+1):
if not prime[i]:
for j in xrange(i, bound+1, i):
prime[j].append(i)
from collections import defaultdict as ddict
t = int(raw_input())
while t:
t -= 1
distinct = ddict(int)
n = int(raw_input())
s = map(int, raw_input().split())
for i in s:
for p in prime[i]:
cnt = 0
while i % p == 0:
i //= p
cnt += 1
distinct[p] = max(distinct[p], cnt)
r = 0
for i in distinct:
r += distinct[i]
print r
Chef and easy problem 2 CodeChef Solution in C#
“using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
namespace Practise
{
class Program
{
public static void Main()
{
const int MAX_LIMIT = 1000;
int T = MyReader.ReadInt();
List<int> PrimeNumbers = Utility.GetPrimes(MAX_LIMIT);
// This is precalculated for prime numbers below 1000
int totalPrimes = PrimeNumbers.Count;
while (T-- > 0)
{
int N = MyReader.ReadInt();
int[] numbers = MyReader.ReadAndSplitInt();
int[] primeHash = new int[totalPrimes];
for (int i = 0; i < N; i++)
{
int[] tempHash = new int[totalPrimes];
for (int j = 0; j < totalPrimes && numbers[i] > 1; j++)
{
while (numbers[i] % PrimeNumbers[j] == 0)
{
tempHash[j] += 1;
numbers[i] = numbers[i] / PrimeNumbers[j];
}
}
for (int j = 0; j < totalPrimes; j++)
{
primeHash[j] = Math.Max(primeHash[j], tempHash[j]);
}
}
int totalCount = 0;
for (int i = 0; i < totalPrimes; i++)
{
totalCount += primeHash[i];
}
// Perform a second pass for primes > 1000
HashSet<int> used = new HashSet<int>();
for (int i = 0; i < N; i++)
{
if (numbers[i] == 1 || used.Contains(numbers[i]))
continue;
totalCount++;
used.Add(numbers[i]);
}
Console.WriteLine(totalCount);
}
}
}
class MyReader
{
public static int ReadInt()
{
return Convert.ToInt32(Console.ReadLine());
}
public static long ReadLong()
{
return Convert.ToInt32(Console.ReadLine());
}
public static void SplitTwoInt(out int a, out int b)
{
int[] ret = ReadAndSplitInt();
a = ret[0];
b = ret[1];
}
public static void SplitThreeInt(out int a, out int b, out int c)
{
int[] ret = ReadAndSplitInt();
a = ret[0];
b = ret[1];
c = ret[2];
}
public static int[] ReadAndSplitInt()
{
String[] input = Console.ReadLine().Split();
int count = input.Length;
int[] a = new int[count];
for (int i = 0; i < count; i++)
{
a[i] = Convert.ToInt32(input[i]);
}
return a;
}
}
class Utility
{
public static List<int> GetPrimes(int limit)
{
bool[] isPrime = GeneratePrimes(limit);
List<int> primes = new List<int>();
for (int i = 2; i <= limit; i++)
{
if (isPrime[i])
primes.Add(i);
}
return primes;
}
public static bool[] GeneratePrimes(int limit)
{
bool[] isPrime = new bool[limit+1];
for (int i = 2; i <= limit; i++)
isPrime[i] = true;
for (int i = 2; i <= limit; i++)
{
if (isPrime[i])
{
int j = 2;
while (i * j <= limit)
{
isPrime[i * j] = false;
j++;
}
}
}
return isPrime;
}
}
}Chef and easy problem 2 CodeChef Solution Review:
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