diff --git "a/JHLEE325/202511/14 BOJ G4 \354\210\230 \353\254\266\352\270\260.md" "b/JHLEE325/202511/14 BOJ G4 \354\210\230 \353\254\266\352\270\260.md" new file mode 100644 index 00000000..216e7059 --- /dev/null +++ "b/JHLEE325/202511/14 BOJ G4 \354\210\230 \353\254\266\352\270\260.md" @@ -0,0 +1,48 @@ +```java +import java.io.*; +import java.util.*; + +public class Main { + public static void main(String[] args) throws Exception { + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + int N = Integer.parseInt(br.readLine()); + + List plus = new ArrayList<>(); + List minus = new ArrayList<>(); + int ones = 0; + int zeros = 0; + + for (int i = 0; i < N; i++) { + int x = Integer.parseInt(br.readLine()); + if (x > 1) plus.add(x); + else if (x == 1) ones++; + else if (x == 0) zeros++; + else minus.add(x); + } + + int sum = ones; + + Collections.sort(plus, Collections.reverseOrder()); + for (int i = 0; i < plus.size(); i += 2) { + if (i + 1 < plus.size()) + sum += plus.get(i) * plus.get(i + 1); + else sum += plus.get(i); + } + + Collections.sort(minus); + for (int i = 0; i < minus.size(); i += 2) { + if (i + 1 < minus.size()) + sum += minus.get(i) * minus.get(i + 1); + else { + if (zeros > 0) { + zeros--; + } else { + sum += minus.get(i); + } + } + } + + System.out.println(sum); + } +} +```