题解 | #星际穿越#
星际穿越
https://www.nowcoder.com/practice/53e4c208b8cf497086ecd65ef45349bb
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
long a = sc.nextLong();
long i = (long)Math.sqrt(a);
for(; i * (i + 1) > a; i--){
}
System.out.println(i);
}
}
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