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Task description A positive integer D is a factor of a positive integer N if there exists an integer M such that N = D * M. For example, 6 is a factor of 24, because M = 4 satisfies the above condition (24 = 6 * 4). Write a function:
that, given a positive integer N, returns the number of its factors. For example, given N = 24, the function should return 8, because 24 has 8 factors, namely 1, 2, 3, 4, 6, 8, 12, 24. There are no other factors of 24. Assume that:
Complexity:
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Solution
Programming language used: Java
Code: 15:02:17 UTC, java, final, score: 100
12345678910111213141516171819202122
// you can also use imports, for example:
// import java.util.*;
// you can write to stdout for debugging purposes, e.g.
// System.out.println("this is a debug message");
class Solution {
public int solution(int N) {
// write your code in Java SE 8
int count = 0, i=1;
double max = Math.sqrt(N);
for(; i < max; i++) {
if(N % i ==0) {
count += 2;
}
}
if(i*i == N){
count++;
}
return count;
}
}
https://codility.com/demo/results/training5YTT4B-5NP/时间： 2024-10-11 18:14:39