제출 #1234948

#제출 시각아이디문제언어결과실행 시간메모리
1234948mariza송신탑 (IOI22_towers)C++20
0 / 100
4094 ms3124 KiB
#include "towers.h" #include <bits/stdc++.h> using namespace std; typedef long long ll; const ll N=1e5; ll n, a[N]; void init(int n1, vector<int> h) { n=n1; for(ll i=0; i<n; i++){ a[i]=h[i]; } } int max_towers(int l, int r, int d) { ll ans[n][2]; for(ll i=r; i>=l; i--){ ans[i][0]=1; ans[i][1]=0; for(ll j=i+1; j<=r; j++){ if(a[i]+d<a[j]) ans[i][0]=max(ans[i][0],ans[j][1]+1); else if(a[i]>a[j]+d) ans[i][1]=max(ans[i][1],ans[j][0]); } // cout<<i<<" "<<ans[i][0]<<" "<<ans[i][1]<<endl; } ll max_ans=0; for(ll i=l; i<=r; i++){ max_ans=max(max_ans,ans[i][0]); } return max_ans; }
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