1038 统计同成绩学生
本题要求读入 N 名学生的成绩,将获得某一给定分数的学生人数输出。
输入格式:
输入在第 1 行给出不超过 105 的正整数 N,即学生总人数。随后一行给出 N 名学生的百分制整数成绩,中间以空格分隔。最后一行给出要查询的分数个数 K(不超过 N 的正整数),随后是 K 个分数,中间以空格分隔。
输出格式:
在一行中按查询顺序给出得分等于指定分数的学生人数,中间以空格分隔,但行末不得有多余空格。
输入样例:
tex
10
60 75 90 55 75 99 82 90 75 50
3 75 90 88
10
60 75 90 55 75 99 82 90 75 50
3 75 90 88
输出样例:
tex
3 2 0
3 2 0
Solution:
java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StreamTokenizer;
public class Main {
static StreamTokenizer in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
static int nextInt() throws IOException {
in.nextToken();
return (int) in.nval;
}
public static void main(String[] args) throws IOException {
int n = nextInt();
int[] score = new int[101];
for (int i = 0; i < n; i++) {
score[nextInt()]++;
}
int k = nextInt();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < k; i++) {
if (i > 0) sb.append(" ");
sb.append(score[nextInt()]);
}
System.out.println(sb);
}
}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StreamTokenizer;
public class Main {
static StreamTokenizer in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
static int nextInt() throws IOException {
in.nextToken();
return (int) in.nval;
}
public static void main(String[] args) throws IOException {
int n = nextInt();
int[] score = new int[101];
for (int i = 0; i < n; i++) {
score[nextInt()]++;
}
int k = nextInt();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < k; i++) {
if (i > 0) sb.append(" ");
sb.append(score[nextInt()]);
}
System.out.println(sb);
}
}