Educational Codeforces Round 34 A. Hungry Student Problem【枚举】
1 second
256 megabytes
standard input
standard output
Ivan's classes at the university have just finished, and now he wants to go to the local CFK cafe and eat some fried chicken.
CFK sells chicken chunks in small and large portions. A small portion contains 3 chunks; a large one — 7 chunks. Ivan wants to eat exactly x chunks. Now he wonders whether he can buy exactly this amount of chicken.
Formally, Ivan wants to know if he can choose two non-negative integers a and b in such a way that a small portions and b large ones contain exactly x chunks.
Help Ivan to answer this question for several values of x!
The first line contains one integer n (1 ≤ n ≤ 100) — the number of testcases.
The i-th of the following n lines contains one integer xi (1 ≤ xi ≤ 100) — the number of chicken chunks Ivan wants to eat.
Print n lines, in i-th line output YES if Ivan can buy exactly xi chunks. Otherwise, print NO.
2
6
5
YES
NO
In the first example Ivan can buy two small portions.
In the second example Ivan cannot buy exactly 5 chunks, since one small portion is not enough, but two small portions or one large is too much.
【分析】:刚开始以为是拓展欧几里得解不定方程(被骚操作冲昏头脑的我)···后来才发现两个for枚举就行。
【代码】:
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define oo 10000000
const int mod = 1e6;
int l,n,m;
int ans;
int main()
{
int t,f;
scanf("%d",&t);
while(t--)
{
f=;
scanf("%d",&n);
for(int i=;i<;i++)
{
for(int j=;j<;j++)
{
if(*i+*j==n)
{
f=;
break;
}
}
if(f) break;
}
//printf("%d\n",f);
if(f) puts("YES");
else puts("NO");
}
return ;
}
双重枚举
Educational Codeforces Round 34 A. Hungry Student Problem【枚举】的更多相关文章
- Educational Codeforces Round 34 (Rated for Div. 2) A B C D
Educational Codeforces Round 34 (Rated for Div. 2) A Hungry Student Problem 题目链接: http://codeforces. ...
- Educational Codeforces Round 40 F. Runner's Problem
Educational Codeforces Round 40 F. Runner's Problem 题意: 给一个$ 3 * m \(的矩阵,问从\)(2,1)$ 出发 走到 \((2,m)\) ...
- Educational Codeforces Round 34 (Rated for Div. 2)
A. Hungry Student Problem time limit per test 1 second memory limit per test 256 megabytes input sta ...
- Educational Codeforces Round 34
F - Clear The Matrix 分析 题目问将所有星变成点的花费,限制了行数(只有4行),就可以往状压DP上去靠了. \(dp[i][j]\) 表示到第 \(i\) 列时状态为 \(j\) ...
- Educational Codeforces Round 34 (Rated for Div. 2) D - Almost Difference(高精度)
D. Almost Difference Let's denote a function You are given an array a consisting of n integers. You ...
- Educational Codeforces Round 34 (Rated for Div. 2) C. Boxes Packing
C. Boxes Packing time limit per test 1 second memory limit per test 256 megabytes input standard inp ...
- Educational Codeforces Round 34 D. Almost Difference【模拟/stl-map/ long double】
D. Almost Difference time limit per test 2 seconds memory limit per test 256 megabytes input standar ...
- Educational Codeforces Round 34 C. Boxes Packing【模拟/STL-map/俄罗斯套娃】
C. Boxes Packing time limit per test 1 second memory limit per test 256 megabytes input standard inp ...
- Educational Codeforces Round 34 B. The Modcrab【模拟/STL】
B. The Modcrab time limit per test 1 second memory limit per test 256 megabytes input standard input ...
随机推荐
- 笔记-python tutorial-9.classes
笔记-python tutorial-9.classes 1. Classes 1.1. scopes and namespaces namespace: A namespace is ...
- Django基于Pycharm开发之三[命名空间 与过滤器]
关于命名空间的问题,在project项目中,我们可以设置路由类似于: from django.conf.urls import url,includefrom django.contrib impor ...
- datagrid的基本属性&查询和清空功能的实现
1.datagrid基本属性 <script charset=UTF-8"> $(function(){ $("#datagrid").datagrid({ ...
- laravel5.2总结--文件上传
1 配置 文件系统的配置文件在 config/filesystems.php 文件中,此处我们新建一个uploads本地磁盘空间用于存储上传的文件,具体配置项及说明如下: <?php retur ...
- leetcode 【 Partition List 】python 实现
题目: Given a linked list and a value x, partition it such that all nodes less than x come before node ...
- RSA进阶之两个N的公约数
适用场景: 给你两个n,n1和n2. 两个数都很大,不好分解. 但是这数刚好有质数公因子(试试欧几里得辗转相除跑完之后,就是不断地相除就可以了,4000多位也是很快的),那不就相当于间接的分解出q或者 ...
- Monkey日志信息的11种Event percentages
我们查看官方文档,表里只给出了8种事件(可以看我上篇的翻译文档).但我们运行Monkey后,却发现有11种事件!最坑爹的是,在每种事件的百分比后面,他还不给注明是什么事件! 原来不同的Android ...
- 微信小程序-----校园头条详细开发之注册登录
1.注册登录功能的实现 1.1结构 1.2 代码实现 1.2.1 为了通信的安全着想,在此我是通过小程序端获得code,然后传递给后端,在后端向微信后台发送api请求,解密,从而得到用户的唯一标示o ...
- Mac OS使用brew安装memcached
1.查看安装信息 brew info memcached 显示如下: memcached: stable 1.5.9 (bottled) High performance, distributed m ...
- 【LeetCode】Longest Substring Without Repeating Characters(无重复字符的最长子串)
这道题是LeetCode里的第3道题. 题目描述: 给定一个字符串,请你找出其中不含有重复字符的 最长子串 的长度. 示例 1: 输入: "abcabcbb" 输出: 3 解释: ...