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[Week04] BOJ 1946: 신입 사원 #34

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Merged
JAEHEE25 merged 1 commit into from
Jan 27, 2026
+37 −0
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[Week04] BOJ 1946: 신입 사원 #34

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37 changes: 37 additions & 0 deletions weekly/week04/BOJ_1946_신입사원/JAEHEE25.java
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Original file line number Diff line number Diff line change
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package week04.BOJ_1946_신입사원;

import java.util.*;
import java.lang.*;
import java.io.*;

class BOJ1946 {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int T = Integer.parseInt(br.readLine());
StringBuilder answer = new StringBuilder();
for (int t = 0; t < T; t++) {
int N = Integer.parseInt(br.readLine());
int[][] score = new int[N][2];

for (int i = 0; i < N; i++) {
StringTokenizer st = new StringTokenizer(br.readLine());
score[i][0] = Integer.parseInt(st.nextToken());
score[i][1] = Integer.parseInt(st.nextToken());
}

Arrays.sort(score, (o1, o2) -> o1[0] - o2[0]); //서류 순위 기준 정렬

int cnt = 0;
int min = 100001;
for (int i = 0; i < N; i++) {
if (score[i][1] < min) {
cnt++;
min = score[i][1];
}
}
answer.append(cnt).append("\n");
}

System.out.println(answer);
}
}