306155: CF1154G. Minimum Possible LCM
Memory Limit:1024 MB
Time Limit:4 S
Judge Style:Text Compare
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Description
Minimum Possible LCM
题意翻译
## Description 给定一个长度为 $n$ 的序列 $a$,找出两个数,最小化他们的最小公倍数 ## Input 第一行是一个整数 $n$ 下面一行 $n$ 个整数描述这个序列 ## Output 输出一行两个整数代表这两个数在序列中的位置。如果有多解则任意输出一个即可。 ## Limitation $2~\leq~n~\leq~10^6$ $1~\leq~a_i~\leq~10^7$ Translated By @ 一扶苏一题目描述
You are given an array $ a $ consisting of $ n $ integers $ a_1, a_2, \dots, a_n $ . Your problem is to find such pair of indices $ i, j $ ( $ 1 \le i < j \le n $ ) that $ lcm(a_i, a_j) $ is minimum possible. $ lcm(x, y) $ is the least common multiple of $ x $ and $ y $ (minimum positive number such that both $ x $ and $ y $ are divisors of this number).输入输出格式
输入格式
The first line of the input contains one integer $ n $ ( $ 2 \le n \le 10^6 $ ) — the number of elements in $ a $ . The second line of the input contains $ n $ integers $ a_1, a_2, \dots, a_n $ ( $ 1 \le a_i \le 10^7 $ ), where $ a_i $ is the $ i $ -th element of $ a $ .
输出格式
Print two integers $ i $ and $ j $ ( $ 1 \le i < j \le n $ ) such that the value of $ lcm(a_i, a_j) $ is minimum among all valid pairs $ i, j $ . If there are multiple answers, you can print any.
输入输出样例
输入样例 #1
5
2 4 8 3 6
输出样例 #1
1 2
输入样例 #2
5
5 2 11 3 7
输出样例 #2
2 4
输入样例 #3
6
2 5 10 1 10 2
输出样例 #3
1 4