题解 | #四舍五入#
四舍五入
https://ac.nowcoder.com/acm/problem/22006
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int n = scan.nextInt();
int x = n % 10; //个位数
if (x > 4) {
n = n + (10 - x);
} else if (x <= 4 && x > 0){
n = n - x;
}
System.out.println(n);
}
}
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