我是靠谱客的博主 机智自行车,最近开发中收集的这篇文章主要介绍A. Div. 7,觉得挺不错的,现在分享给大家,希望可以做个参考。

概述

time limit per test

2 seconds

memory limit per test

512 megabytes

input

standard input

output

standard output

You are given an integer nn. You have to change the minimum number of digits in it in such a way that the resulting number does not have any leading zeroes and is divisible by 77.

If there are multiple ways to do it, print any of them. If the given number is already divisible by 77, leave it unchanged.

Input

The first line contains one integer tt (1≤t≤9901≤t≤990) — the number of test cases.

Then the test cases follow, each test case consists of one line containing one integer nn (10≤n≤99910≤n≤999).

Output

For each test case, print one integer without any leading zeroes — the result of your changes (i. e. the integer that is divisible by 77 and can be obtained by changing the minimum possible number of digits in nn).

If there are multiple ways to apply changes, print any resulting number. If the given number is already divisible by 77, just print it.

Example

input

Copy

3
42
23
377

output

Copy

42
28
777

Note

In the first test case of the example, 4242 is already divisible by 77, so there's no need to change it.

In the second test case of the example, there are multiple answers — 2828, 2121 or 6363.

In the third test case of the example, other possible answers are 357357, 371371 and 378378. Note that you cannot print 077077 or 7777.

解题说明:此题是一道数学题,按照题目意思尽可能少的改动数字中的某位数,让数字能被7整除,最容易想到的就是只改最低位。首先统计出余数是多少,比较余数和n的最低位,余数比n的最后一位小那就直接减去余数,否则就加7再减。

#include <stdio.h>

int main(void) 
{
	int t;
	scanf("%d", &t);
	while (t--)
	{
		int n, k;
		scanf("%d", &n);
		k = n % 7;
		if (n % 10 - k<0)
		{
			n = n + 7 - k;
		}
		else
		{
			n = n - k;
		}
		printf("%dn", n);
	}
	return 0;
}

最后

以上就是机智自行车为你收集整理的A. Div. 7的全部内容,希望文章能够帮你解决A. Div. 7所遇到的程序开发问题。

如果觉得靠谱客网站的内容还不错,欢迎将靠谱客网站推荐给程序员好友。

本图文内容来源于网友提供,作为学习参考使用,或来自网络收集整理,版权属于原作者所有。
点赞(85)

评论列表共有 0 条评论

立即
投稿
返回
顶部