Published August 24, 2022 by Tech Network

Odd Pairs Codechef code Java (ODDPAIRS)

Problem

Given an integer NN, determine the number of pairs (A, B)(A,B) such that:
1<=A,B<=N
A + B is odd.

Input Format

The first line of input will contain a single integer TT, denoting the number of test cases.
Each test case consists of a single integer NN.

Output Format

For each test case, output the number of required pairs.

Constraints

1<=T<=100
1<=N<=10^9

Input

Output

0
2
4
5000
19800

 
  
/* 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
	{
	    Scanner sc = new Scanner(System.in);
	    int t = sc.nextInt();
	    while(t>=1 && t<=100)
	    {
	     long n = sc.nextInt();
	      if(n>=1 && n<=(Math.pow(10, 9)))
	      {
            	     if(n==1)
            	     {
            	         System.out.println("0");
            	     }else if(n%2 == 1)
            	     {
            	         System.out.println(  ((n/2)+1)*(n/2)*2   );
            	     }else 
            	     {
            	         System.out.println( (n/2)*(n/2)*2 );
            	     }
	      } 
	     
	        t--;
	    }
	}
}

Code

Published August 24, 2022 by Tech Network

Weights Codechef code Java ,(WGHTS)

Problem

Chef is playing with weights. He has an object weighing WW units. He also has three weights each of X, Y,X,Y, and ZZ units respectively. Help him determine whether he can measure the exact weight of the object with one or more of these weights.

If it is possible to measure the weight of object with one or more of these weights, print YES, otherwise print NO.

Input Format

The first line of input will contain a single integer TT, denoting the number of test cases.
Each test case consists of single line containing a four positive integers W, X, Y,W,X,Y, and ZZ.

Output Format

For each test case, output on a new line YES if it is possible to measure the weight of object with one or more of these weights, otherwise print NO.

You may print each character of the string in either uppercase or lowercase (for example, the strings yes, YES, Yes, and yeS will all be treated as identical).

Constraints

1<= T <=10000

1<=W,X,Y,Z<=100000

 
  
 /* 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
	{
		Scanner sc= new Scanner(System.in);
		int t = sc.nextInt();
		while(t>=1 && t<=10000)
		{
		    
		    int w = sc.nextInt();
		    int x = sc.nextInt();
		    int y = sc.nextInt();
		    int z = sc.nextInt();
		   if(w>=1 && w<=(Math.pow(10, 5)) && x>=1 && x<=(Math.pow(10, 5)) && y>=1 && y<=(Math.pow(10, 5)) && z>=1 && z<=(Math.pow(10, 5))){
		    if(w == x || w == y || w == z)
		    {
		        System.out.println("YES");
		    }else if(w == (x+y) || w == x+z || w == y+z)
		    {
		        System.out.println("YES");
		    }
		    else if(w == (x+y+z))
		    {
		        System.out.println("YES");
		    }else
		    {
		        System.out.println("NO");
		    }
		   }
		    
		    t--;
		}
	}
}

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Code

Published August 24, 2022 by Tech Network

Greater Average Codechef Java Code, (AVGPROBLEM)

Problem

You are given $3$ numbers $A, B,$ and $C$ .

Determine whether the average of $A$ and $B$ is strictly greater than $C$ or not?

NOTE: Average of $A$ and $B$ is defined as $\frac{(A+B)}{2}$ . For example, average of $5$ and $9$ is $7$ , average of $5$ and $8$ is $6.5$ .

Input Format

The first line of input will contain a single integer TT, denoting the number of test cases.
Each test case consists of 33 integers A, B,A,B, and CC.

Output Format

For each test case, output YES if average of AA and BB is strictly greater than CC, NO otherwise.
You may print each character of the string in uppercase or lowercase (for example, the strings YeS, yEs, yes and YES will all be treated as identical).

Constraints

1<= T <=1000

1<=A,B,C<=10

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

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

/* 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
	{
		Scanner sc= new Scanner(System.in);
		int t = sc.nextInt();
		while(t>=1 && t<=1000)
		{
		    float a= sc.nextInt();
		    float b= sc.nextInt();
		    float c= sc.nextInt();
		    if(a>=1 && a<=10 && b>=1 && b<=10 && c>=1 && c<=10)
		    {
		        float z = (float) (a+b)/2;
		        if (z>c) 
		        {
		            System.out.println("YES");
		        }else 
		        {
		            System.out.println("NO");
		        }
  		    }
		    
		    t--;
		    
		}
	}
}

Code

Published August 24, 2022 by Tech Network

Car Trip Code chef, Solution Java (CARTRIP)

Problem

The chef rented a car for a day.

Usually, the cost of the car is Rs 1010 per km. However, since Chef has booked the car for the whole day, he needs to pay for at least 300300 kms even if the car runs less than 300300 kms.

If the car ran XX kms, determine the cost Chef needs to pay.

Input Format

The first line of input will contain a single integer TT, denoting the number of test cases.

Each test case consists of a single integer XX - denoting the number of kms Chef travelled.

Output Format

For each test case, output the cost Chef needs to pay.

Constraints

1<= T <=100

1<=X<=1000

 
  
  /* 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
	{
		Scanner sc = new Scanner(System.in);
		int t = sc.nextInt();
		while(t>=1 && t<=100)
		{
	    int x = sc.nextInt();
		    if(x>=1 && x<=1000){
		    if(x>=1 && x<300)
		    {
		        System.out.println(300*10);
		    }else 
		    {
		        int amt = x*10;
		        System.out.println(amt);
		    }
		    
		    }
		    
		    t--;
		}
	}
}

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Code

Published August 13, 2022 by Tech Network

Make A and B equal CodeChef - Java Code EQUALISE

Make A and B equal CodeChef Java Code EQUALISE

Problem Code: EQUALISE

Problem:

Chef has two numbers AA and BB.

In one operation, Chef can choose either AA or BB and multiply it by 22.

Determine whether he can make both AA and BB equal after any number (possibly, zero) of moves.

Input Format:

The first line of input will contain a single integer TT, denoting the number of test cases.

Each test case consists of two space-separated integers AA and BB.

Output Format:

For each test case, output YES if Chef can make both numbers equal, NO otherwise.

Note that the checker is case-insensitive i.e. YES, Yes, yes, yES are all considered same.

Constraints:

1<=T<=2500
1<=A,B<=50

INPUTS:

4
5 20
6 6
12 2
50 20

OUTPUT:

Explanation:

Test case 1: The chef can multiply AA by 22 twice and both AA and BB will become 2020.
Test case 2: Both numbers are already equal.
Test case 3: It can be shown that AA and BB cannot be made equal.
Test case 4: It can be shown that AA and BB cannot be made equal.

Make A and B equal CodeChef Java Code EQUALISE

 /* 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
	{
		try {
		    
		Scanner sc = new Scanner(System.in);
		int t = sc.nextInt();
		while(t>=1 && t<=2500)
		{
		    int a = sc.nextInt();
		    int b = sc.nextInt();
		    if(a>=1 && a<=50 && b>=1 && b<=50)
		    {
		        if(a==b)
		        {
		            System.out.println("YES");
		        }else if(a>b)
		        {
    		            outer: 
    		           while(true) { 
    		                int c = b*2;
    		                if(c==a)
    		                {
    		                    System.out.println("YES");
    		                    break outer;
    		                }
    		                else if(c < a)
    		                {
    		                    b=c;
    		                    continue outer;
    		                }else 
    		                {
    		                    System.out.println("NO");
    		                    break outer;
    		                }
		               }
    	 
		        }else if (b>a)
		        {
		            
		             outer1: 
    		               while(true){
    		                int c = a*2;
    		                if(c==b)
    		                {
    		                    System.out.println("YES");
    		                    break outer1;
    		                }
    		                else if(c < b)
    		                {
    		                    a=c;
    		                    continue outer1;
    		                }else 
    		                {
    		                    System.out.println("NO");
    		                    break outer1;
    		                }
    		               }
		        }
		    }
  
		}
		}
		catch(Exception e) {
		    return;
		}
		System.gc();
	}
}

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Odd Pairs Codechef code Java (ODDPAIRS)

Problem

Weights Codechef code Java ,(WGHTS)

Problem

Greater Average Codechef Java Code, (AVGPROBLEM)

Problem

Car Trip Code chef, Solution Java (CARTRIP)

Problem

Make A and B equal CodeChef - Java Code EQUALISE

Make A and B equal CodeChef Java Code EQUALISE

Make A and B equal CodeChef Java Code EQUALISE

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