1 n i i+1 i+2 解法: 代码: int main() { int n;cin>>n; vector<int>a(n),dp(n,0); for(int i=0;i<n;i++)cin>>a[i]; dp[0]=0; for(int i=1;i<n;i++) { if(i>=2) { dp[i]=min(dp[i-1]+abs(a[i]-a[i-1]),dp[i-2]+abs(a[i]-a[i-2])); } else ...
no-stack-protector,unroll-loops,fast-math") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4.1,sse4.2,avx,avx2,popcnt,tune=native") #define isPbdsFile #ifdef isPbdsFile #include <bits/extc++.h> #else #include <ext/pb_ds/priority_queue.hpp> #include <ext/pb_ds/hash_policy.hpp...
线性dp intdp[N],h[N];voidsolve(){intn;cin>>n;for(inti=1;i<=n;i++){cin>>h[i];dp[i]=INF;}dp[1]=0;for(inti=1;i<n;i++){dp[i+1]=min(dp[i+1],dp[i]+abs(h[i]-h[i+1]));dp[i+2]=min(dp[i+2],dp[i]+abs(h[i]-h[i+2]));}cout<<dp[n];} B - Fro...
AtCoder Beginner Contest 235 F(数位dp) 严格鸽 【数据结构】打开KMP算法中next数组求法的简单模式 强连通计算机考研 JS中的数组空位和undefined 假设我们有下面代码 let arr = Array(5).map(item => { return item = 4 } console.log(arr)我们预期输出的是 [4,4,4,4], 然而输出的是[undefined, ...
比较裸的状压D P \rm DPDP吧 定义f [ i ] f[i]f[i]表示填数状态为i ii时的合法方案数,第j jj位二进制为1 11表示数字j jj已经被填过 比如i ii中有x xx个1 11,说明已经填充了k kk个数 那么每次O ( n ) O(n)O(n)枚举第k + 1 k+1k+1个位置填哪个数,并检查是否满足x i = k + 1...
AtCoder Beginner Contest 180 个人题解(快乐DP场) Here A - box 输出\(N - A + B\) B - Various distances 按题意输出 3 种距离即可 #include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ios_base::sync_with_stdio(false), cin.tie(0);...
简介:AtCoder Beginner Contest 217 F - Make Pair (区间dp) linkkkkk 题意: 有2 ∗ n个数,给出m对关系( a , b )表示a-b有联系。每次将这些数排成一排,如果相邻两个数有联系的话就可以消去,求方案数。 思路: d p [ l ] [ r ]表示将[ l , r ]之间的数消去的方案数。
简介:AtCoder Beginner Contest 222 D - Between Two Arrays(前缀和优化dp) linkkkkk 题意: 给出两个长度为n的序列a , b构造一个序列c满足a i < = c i < = b i并且c非单调递减。求方案数。n < = 3000 , 0 < = a i , b i < = 3000 ...
Can someone please help me with the following problem?https://atcoder.jp/contests/abc155/tasks/abc155_e I found this dp solution, am unable to understand what does dp state denote and how transitions are made?https://atcoder.jp/contests/abc155/submissions/10154214 ...
Here is my code for Knapsack-I:https://atcoder.jp/contests/dp/submissions/15549225 And this is for Knapsack-II :https://atcoder.jp/contests/dp/submissions/15548921 Thank you for your time.