题目链接:1199: Little Red Riding Hood 思路:dp(i)表示前i朵花能取得的最大价值,每一朵花有两种选择,摘与不摘,摘了第i朵花后第i-k到i+k的花全部枯萎,那么摘的话dp(i) = dp(i-k-1) + a[i],不摘就是dp(i) = dp(i-1),因此转移方程就是dp(i) = max(dp(i-k-1) + a[i], dp(i-1)). AC代码 #include <cstdio> #include <cmath> #include &l…

问题 : Little Red Riding Hood 时间限制: 1 Sec  内存限制: 1280 MB 题目描述 Once upon a time, there was a little girl. Her name was Little Red Riding Hood. One day, her grandma was ill. Little Red Riding Hood went to visit her. On the way, she met a big wolf. "That'…

Little Red Riding Hood Time Limit: 1 Sec  Memory Limit: 1280 MBSubmit: 853  Solved: 129[Submit][Status][Web Board] Description Once upon a time, there was a little girl. Her name was Little Red Riding Hood. One day, her grandma was ill. Little Red Ri…

1199: Little Red Riding Hood Time Limit: 1 Sec  Memory Limit: 1280 MBSubmit: 918  Solved: 158[Submit][Status][Web Board] Description Once upon a time, there was a little girl. Her name was Little Red Riding Hood. One day, her grandma was ill. Little…

目录 基本操作 1.1. 文件操作 1.2. 文本操作 1.3. 目录操作 1.4. SSH, 系统信息 & 网络操作 基本 Shell 编程 2.1. 变量 2.2. 字符串替换 2.3. 函数 2.4. 条件 2.5. 循环 技巧 调试 1. Basic Operations a. export 显示所有的环境变量,如果你想获取某个变量的详细信息,使用 echo $VARIABLE_NAME. export Example: $ export SHELL=/bin/zsh AWS_HOME=…

Keras内置的预定义模型 上一节我们讲过了完整的保存模型及其训练完成的参数. Keras中使用这种方式,预置了多个著名的成熟神经网络模型.当然,这实际是Keras的功劳,并不适合算在TensorFlow 2.0头上. 当前TensorFlow 2.0-alpha版本捆绑的Keras中包含: densenet inception_resnet_v2 inception_v3 mobilenet mobilenet_v2 nasnet resnet50 vgg16 vgg19 xception 这…

Table of Contents Basic Operations 1.1. File Operations 1.2. Text Operations 1.3. Directory Operations 1.4. SSH, System Info & Network Operations 1.5. Process Monitoring Operations Basic Shell Programming 2.1. Variables 2.2. Array 2.3. String Substit…

Problem A: Little Red Riding Hood Time Limit: 1 Sec  Memory Limit: 1280 MBSubmit: 860  Solved: 133[Submit][Status][Web Board] Description Once upon a time, there was a little girl. Her name was Little Red Riding Hood. One day, her grandma was ill. Li…

Django Model 定义语法 版本:1.7主要来源:https://docs.djangoproject.com/en/1.7/topics/db/models/ 简单用法 from django.db import models class Person(models.Model): first_name = models.CharField(max_length=30) last_name = models.CharField(max_length=30) 会自动生成SQL: CREA…

Series的简单运算 import numpy as np import pandas as pd s1=pd.Series([1,2,3],index=['A','B','C']) print(s1) 结果: A 1 B 2 C 3 dtype: int64 s2=pd.Series([4,5,6,7],index=['B','C','D','E']) print(s2) 结果: B 4 C 5 D 6 E 7 dtype: int64 print(s1+s2)#对应的index相加,NaN…