Submission #490596

#TimeUsernameProblemLanguageResultExecution timeMemory
490596inksamuraiSjeckanje (COCI21_sjeckanje)C++17
0 / 110
0 ms332 KiB
#include <bits/stdc++.h> #define fi first #define se second #define pb push_back #define sz(a) (int)a.size() #define all(a) a.begin(),a.end() #define rep(i,n) for(int i=0;i<n;i++) #define crep(i,x,n) for(int i=x;i<n;i++) #define drep(i,n) for(int i=n-1;i>=0;i--) #define vec(...) vector<__VA_ARGS__> #define _31av4qi ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0) using namespace std; typedef long long ll; typedef long double ld; using pii=pair<int,int>; using vi=vector<int>; int sgn(int x){ return x>=0?1:-1; } ll f(vec(ll) a){ int n=sz(a); vec(vec(ll)) dp(n,vec(ll)(2)); dp[0][0]=dp[0][1]=0; rep(i,n-1){ ll d=a[i+1]-a[i]; dp[i+1][0]=max(dp[i+1][0],dp[i][0]+d); dp[i+1][0]=max({dp[i+1][0],dp[i][1],dp[i][0]}); dp[i+1][1]=max(dp[i+1][1],dp[i][1]-d); dp[i+1][1]=max({dp[i+1][1],dp[i][0],dp[i][1]}); } return max(dp[n-1][0],dp[n-1][1]); } int main(){ _31av4qi; int n; cin>>n; // int q; // cin>>q; vec(ll) a(n); rep(i,n){ cin>>a[i]; } ll ans=f(a); cout<<ans<<"\n"; // return 0; }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...