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3.java
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98 lines (82 loc) · 2.56 KB
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import java.util.*;
import java.io.*;
public class Main {
public static int n;
public static int[] arr, flag, result;
public static void main(String[] args) {
FastReader fr = new FastReader();
n = fr.nextInt();
arr = new int[n];
flag = new int[n];
// 각 원소의 값 입력 받기
for (int i = 0; i < n; i++) {
arr[i] = fr.nextInt();
}
// 각 원소의 고정 여부 입력 받기
for (int i = 0; i < n; i++) {
flag[i] = fr.nextInt();
}
// 고정된 원소를 제외한 다른 원소를 내림차순 정렬
LinkedList<Integer> list = new LinkedList<Integer>();
for (int i = 0; i < n; i++) {
if (flag[i] == 0) {
list.add(arr[i]);
}
}
Collections.sort(list, Collections.reverseOrder());
// 최종적인 배열
result = new int[n];
for (int i = 0; i < n; i++) {
if (flag[i] == 0) result[i] = list.removeFirst();
else result[i] = arr[i];
}
// 결과 계산
int k = 0;
long sum = 0;
for (int i = 0; i < n; i++) {
sum += result[i];
if (sum < 0) {
k = i + 1;
}
}
System.out.println(k);
}
public static class FastReader {
BufferedReader br;
StringTokenizer st;
public FastReader() {
br = new BufferedReader(new InputStreamReader(System.in));
}
public FastReader(String s) throws FileNotFoundException {
br = new BufferedReader(new FileReader(new File(s)));
}
String next() {
while (st == null || !st.hasMoreElements()) {
try {
st = new StringTokenizer(br.readLine());
} catch (IOException e) {
e.printStackTrace();
}
}
return st.nextToken();
}
int nextInt() {
return Integer.parseInt(next());
}
long nextLong() {
return Long.parseLong(next());
}
double nextDouble() {
return Double.parseDouble(next());
}
String nextLine() {
String str = "";
try {
str = br.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return str;
}
}
}