[20250918] BOJ / G3 / 흩날리는 시험지 속에서 내 평점이 느껴진거야 / 이인희

Author: LiiNi-coder

LiiNi-coder/202509/18 BOJ 흩날리는 시험지 속에서 내 평점이 느껴진거야.md

@@ -0,0 +1,50 @@
+```java
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.Arrays;
+import java.util.StringTokenizer;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        var br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int N = Integer.parseInt(st.nextToken());
+        int K = Integer.parseInt(st.nextToken());
+        int[] arr = new int[N];
+        
+        st = new StringTokenizer(br.readLine());
+        for (int i = 0; i < N; i++) {
+            arr[i] = Integer.parseInt(st.nextToken());
+        }
+        long left = Arrays.stream(arr).min().getAsInt();
+        long right = 0;
+        for (int x : arr)
+            right += x;
+
+        long answer = 0;
+        while(left <= right) {
+            long mid = (left + right) / 2;
+            int groupCount = 0;
+            long sum = 0;
+            
+            for (int i = 0; i < N; i++) {
+                sum += arr[i];
+                if (sum >= mid) {
+                    groupCount++;
+                    sum = 0;
+                }
+            }
+            
+            if (groupCount >= K) {
+                answer = mid;
+                left = mid + 1;
+            } else {
+                right = mid - 1;
+            }
+        }
+        System.out.println(answer);
+    }
+}
+
+```