package hackerrank;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

public class GradingStudents {

static List<Integer> gradingStudents(List<Integer> grades) {

// 5의 배수와의 차가 3보다 작으면 올림하기

//sol1

/*

List<Integer> result = new ArrayList<>();

for(int i=0; i<grades.size(); i++){

if(grades.get(i) < 38) continue;

if((((grades.get(i)/5 + 1) * 5) - grades.get(i)) < 3){

grades.set(i, ((grades.get(i)/5 + 1) * 5));

}

}

//You can use addAll() instead of loop

for(int g : grades){

result.add(g);

}

result.addAll(grades);

return result;

*/

//sol2. You can use param only

for(int i=0; i<grades.size(); i++){

if(grades.get(i) < 38) continue;

if((((grades.get(i)/5 + 1) * 5) - grades.get(i)) < 3){

grades.set(i, ((grades.get(i)/5 + 1) * 5));

}

}

return grades;

}

public static void main(String[] args) {

System.out.println(gradingStudents(new ArrayList<>(Arrays.asList(73, 67, 38, 33)))+"ans : 75, 67, 40, 33");

}

}