Maximum Multiple
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 0 Accepted Submission(s): 0
Problem Description
Given an integer n, Chiaki would like to find three positive integers x, y and z such that: n=x+y+z, x∣n, y∣n, z∣n and xyz is maximum.
Input
There are multiple test cases. The first line of input contains an integer T (1≤T≤106), indicating the number of test cases. For each test case:
The first line contains an integer n (1≤n≤106).
Output
For each test case, output an integer denoting the maximum xyz. If there no such integers, output −1 instead.
Sample Input
3 1 2 3
Sample Output
-1 -1 1
解题思路:
#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
long long T,n;
scanf("%lld",&T);
while(T--&&scanf("%lld",&n))
{
if(n%3==0) printf("%lld\n",n*n*n/27);
else if(n%4==0) printf("%lld\n",n*n*n/32);
else printf("-1\n");
}
}