★ [백준][Java] 2110번 공유기 설치 (이진탐색)

★ [백준][Java] 2110번 공유기 설치 (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{ String [] str = br.readLine(). split ( " " ); int N = stoi(str[ 0 ]); int C = stoi(str[ 1 ]); int [] house = new int [N]; for ( int i = 0 ; i < N; i + + ) house[i] = stoi(br.readLine()); Arrays.sort(house); int left = 1 ; int right = house[house. length - 1 ] - house[ 0 ]; int res = 0 ; while (left < = right) { int mid = (left + right) / 2 ; int nextModem = house[ 0 ] + mid; int cnt = 1 ; for ( int i : house) { if (i > = nextModem) { cnt + + ; nextModem = i + mid; } } if (cnt < C) 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/344 by ccl(A) rewrite - 2021-10-16 07:02:10