CF987C Three displays 暴力】的更多相关文章

题意翻译 题目大意: nnn个位置,每个位置有两个属性s,cs,cs,c,要求选择3个位置i,j,ki,j,ki,j,k,使得si<sj<sks_i<s_j<s_ksi​<sj​<sk​,并使得ci+cj+ckc_i+c_j+c_kci​+cj​+ck​最小 输入格式: 一行一个整数,nnn,3<=n<=30003<=n<=30003<=n<=3000 一行nnn个整数,即sss 再一行nnn个整数,即ccc 输出格式: 输出一个整数…
[链接]:CF987C [分析]:先求出每个s[i]后面比s[i]大的c[i]的最小值,然后枚举前两个数c(i),c(j)以及 j 后面递增且存在最小值的dp(j) [代码]: #include<bits/stdc++.h> using namespace std; const int INF = 0x3f3f3f3f; #define ms(a,b) memset(a,b,sizeof(a)) #define rep(i,a,b) for(int i=(a); i<=(b); i++)…
题目传送门 题目大意 n个位置,每个位置有两个属性s,c,要求选择3个位置i,j,k,使得s_i<s_j<s_k​,并使得c_i+c_j+c_k最小 方法1 n³枚举每一种情况(也许可以拿到部分分) 这种做法最好往这交 (可以炸测评机) 方法2 题目中要求一个有三个数的组合,不妨这样做:先算出两个数的组合,在转为三个数 假设现在正在考虑第 i 个数 从1到i-1枚举每一个数j dp[i][2]表示以i结尾满足要求的两个数组合的最大的值,dp[i][3]表示以i结尾满足要求的三个数组合的最大的值…
Three displays time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output It is the middle of 2018 and Maria Stepanovna, who lives outside Krasnokamensk (a town in Zabaikalsky region), wants to rent t…
Shuffle'm Up Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10003   Accepted: 4631 Description A common pastime for poker players at a poker table is to shuffle stacks of chips. Shuffling chips is performed by starting with two stacks o…
B. Nanami's Digital Board 题目连接: http://www.codeforces.com/contest/434/problem/B Description Nanami is an expert at playing games. This day, Nanami's good friend Hajime invited her to watch a game of baseball. Unwilling as she was, she followed him to…
VK Cup 2015 - Round 1 (unofficial online mirror, Div. 1 only)E. The Art of Dealing with ATM Time Limit: 2 Sec  Memory Limit: 256 MBSubmit: xxx  Solved: 2xx 题目连接 http://codeforces.com/contest/529/problem/E Description ATMs of a well-known bank of a sm…
uva 725 Division Write a program that finds and displays all pairs of 5-digit numbers that between them use the digits 0 through 9 once each, such that the first number divided by the second is equal to an integer N, where 2<=N <=79. That is, abcde…
Problem description It is the middle of 2018 and Maria Stepanovna, who lives outside Krasnokamensk (a town in Zabaikalsky region), wants to rent three displays to highlight an important problem. There are n displays placed along a road, and the i-th…
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