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연습문제 톡
금고털이
TC 2, 5번 안되는 이유 알려주세요ㅠ
- 등록일
- 2024-07-22 00:39:14
- 조회수
- 176
- 작성자
- areumj0507
import java.io.*;
import java.util.*;
public class Main {
private static List<Map.Entry<Integer, Integer>> sortPriceAndWeight(Map<Integer, Integer> metalMap) {
List<Map.Entry<Integer, Integer>> entryList = new LinkedList<>(metalMap.entrySet());
entryList.sort(new Comparator<Map.Entry<Integer, Integer>>() {
@Override
public int compare(Map.Entry<Integer, Integer> o1, Map.Entry<Integer, Integer> o2) {
return o2.getValue() - o1.getValue();
}
});
return entryList;
}
private static int sumPrice(int W, List<Map.Entry<Integer, Integer>> entryList) {
int result = 0;
for(Map.Entry<Integer, Integer> entry : entryList) {
if(W == 0) break;
int weight = entry.getKey();
int price = entry.getValue();
if(W >= weight) {
result += (weight * price);
W -= weight;
}else {
result += (W * price);
W = 0;
}
}
return result;
}
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer tokenizer = new StringTokenizer(reader.readLine());
int W = Integer.parseInt(tokenizer.nextToken());
int N = Integer.parseInt(tokenizer.nextToken());
Map<Integer, Integer> metalMap = new HashMap<>();
for(int i=0; i<N; i++) {
tokenizer = new StringTokenizer(reader.readLine());
metalMap.put(Integer.parseInt(tokenizer.nextToken()),
Integer.parseInt(tokenizer.nextToken()));
}
System.out.println((sumPrice(W, sortPriceAndWeight(metalMap))));
}
}
안되는 이유 좀 알려주세요ㅠㅠ
#금고털이