水dp第二天(背包有关) 标签: dp poj_3624 题意:裸的01背包 注意:这种题要注意两个问题,一个是要看清楚数组要开的范围大小,然后考虑需要空间优化吗,还有事用int还是long long 代码: #include<cstdio> #include<cstring> #include<algorithm> using namespace std; const int N = 13000; int W[N],D[N]; int dp[N]; int main(…
题意: M*N的grid,每个格上有一个整数. 小明从左上角(1,1)打算走到右下角(M,N). 每次可以向下走一格,或向右走一格,或向右走到当前所在列的倍数的列的位置上.即:若当前位置是(i,j),可以走到(i,k*j) 问取走的最大和是多少. 思路: 水DP...边界的初始化要考虑.(因为有负数). 代码: int n,m; int a[30][1005]; int dp[30][1005]; int main(){ int T; cin>>T; while(T--){ cin>&g…
B - Bing it Time Limit:3000MS Memory Limit:0KB 64bit IO Format:%lld & %llu Submit Status Practice UVALive 4764 Description I guess most of you played cards on the trip to Harbin, but I'm sure you have never played the following card game. Thi…
Another OCD Patient Problem Description Xiaoji is an OCD (obsessive-compulsive disorder) patient. This morning, his children played with plasticene. They broke the plasticene into N pieces, and put them in a line. Each piece has a volume Vi. Since Xi…
题意: 给你一些被占用的时间点,然后有一些询问,每次输出大于等于询问时间的没被占用的最小的那个时间. 思路: 直接把所有用过的时间标记上,然后倒着更新一遍当前最小空余时间,或者用set做,两个都在下面写代码了,水题不解释了,直接看看代码就懂了. #include<stdio.h> #include<string.h> #define N 200000 + 10 int dp[N] ,mark[N]; int main () { int n ,m ,i ,a…
题目链接 https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=4920 problem description Two years ago, Putri bought an electric bike (e-bike). She likes e-bike a lot since it can assist her in cycl…
