High Accuracy CodeChef Solution

Problem – High Accuracy CodeChef Solution

There are 100 questions in a paper. Each question carries +3 marks for correct answer, -1 marks for incorrect answer and 0 marks for unattempted question.

It is given that Chef received exactly X (0≤X≤100) marks. Determine the minimum number of problems Chef marked incorrect.

Input Format

• First line will contain T, number of test cases. Then the test cases follow.
• Each testcase contains of a single integer X, marks that Chef received.

Output Format

For each test case, output the minimum number of problems Chef marked incorrect.

Constraints

• 1≤T≤100
• 0≤X≤100

Sample 1:

Input: 4
0
100
32
18
Output: 0
2
1
0

Explanation:

Test Case 1: It might be possible that Chef didn’t attempt any question in which case he didn’t get any question incorrect.

Test Case 2: For the case when Chef got 34 questions correct and 2 questions incorrect, Chef marked minimum incorrect questions.

Test Case 3: For the case when Chef got 11 questions correct and 1 question incorrect, Chef marked minimum incorrect questions.

Test Case 4: For the case when Chef got 6 questions correct and no question incorrect, Chef marked minimum incorrect questions.

High Accuracy CodeChef Solution in C++14

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int t;
	cin>>t;
	while (t--)
	{
	    int x;
	    cin>>x;
	    if (x%3==0)
	    cout<<0<<endl;
	    else if (x%3==2)
	    cout<<1<<endl;
	    else
	    cout<<2<<endl;
	}
	return 0;
}

High Accuracy CodeChef Solution in Pyth 3

# cook your dish here
for _ in range(int(input())):
    x=int(input())
    if x==0 or x%3==0:
        print(0)
    else:
        print((((x//3)+1)*3)-x)

High Accuracy 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);
		int t=sc.nextInt();
		for (int i=0;i<t ;i++ ){
		    int x=sc.nextInt();
		    if ((x%3)==0){
		        System.out.println(0);
		    }else if ((x%3)!=0){
		        if ((x%3)==1){
		            System.out.println(2);
		        }  
		         if ((x%3)==2){
		            System.out.println(1);
		        }  
		    }  
		} 
	}
}

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