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hdu 6298

时间:2018-07-25 01:11:50      阅读:209      评论:0      收藏:0      [点我收藏+]

标签:selected   several   contain   str   source   cte   BMI   car   class   

Maximum Multiple

Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1500    Accepted Submission(s): 650


Problem Description
Given an integer n, Chiaki would like to find three positive integers xy and z such that: n=x+y+zxnynzn and xyz is maximum.
 

 

Input
There are multiple test cases. The first line of input contains an integer T (1T106), indicating the number of test cases. For each test case:
The first line contains an integer n (1n106).
 

 

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
 

 

Source
 

 

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liuyiding   |   We have carefully selected several similar problems for you:  6308 6307 6306 6305 6304 
 
 
 
 /*
经过数学变形知:
x=n/k1,y=n/k2,z=n/k3
1/k1+1/k2+1/k3=1
3 3 3
2 4 4
2 3 6
只有这三组解,可令k1<=k2<=k3来推、
最后的结果即x*y*z=n*n*n/(k1*k2*k3)

1
#include <iostream> 2 #include <cstdio> 3 #include <algorithm> 4 #include <cstring> 5 #include <vector> 6 #include <utility> 7 #include <queue> 8 using namespace std; 9 typedef long long ll; 10 int t; 11 int main() 12 { scanf("%d",&t); 13 ll n; 14 while(t--){ 15 scanf("%lld",&n); 16 if(n%3==0){ 17 printf("%lld\n",n*n*n/27); 18 continue; 19 } 20 if(n%4==0){ 21 printf("%lld\n",n*n*n/32); 22 } 23 else{ 24 printf("-1\n");//n%6=0,那么n%3也一定=0 25 } 26 } 27 return 0; 28 }

 

 
 
 
 
 
 

hdu 6298

标签:selected   several   contain   str   source   cte   BMI   car   class   

原文地址:https://www.cnblogs.com/tingtin/p/9363480.html

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