[백준][Java] 2512번 예산 (이진탐색)

[백준][Java] 2512번 예산 (이진탐색)

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import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.util.Arrays; public class Main { private static BufferedReader br = new BufferedReader( new InputStreamReader( System . in )); private static BufferedWriter bw = new BufferedWriter( new OutputStreamWriter( System . out )); public static void main( String [] args) throws IOException{ int N = stoi(br.readLine()); String [] str = br.readLine(). split ( " " ); int M = stoi(br.readLine()); int [] budget = new int [N]; for ( int i = 0 ; i < N; i + + ) budget[i] = stoi(str[i]); Arrays.sort(budget); long left = 1 ; long right = budget[N - 1 ]; long res = 0 ; while (left < = right) { long mid = (left + right) / 2 ; long tempSum = 0 ; for ( int b : budget) tempSum + = Math.min(b,mid); // System.out.println(left+" "+mid+" "+right+" : "+tempSum); if (tempSum > M) right = mid - 1 ; else { left = mid + 1 ; res = mid; } } System . out . println (res); // bw.write(""); // bw.flush(); // bw.close(); } private static int stoi( String input) { return Integer. parseInt (input); } } Colored by Color Scripter

from http://aig2029.tistory.com/345 by ccl(A) rewrite - 2021-10-18 02:27:57