Submission #1055616

#	Time	Username	Problem	Language	Result	Execution time	Memory
1055616		vjudge1	송신탑 (IOI22_towers)	C++17	11 / 100	4075 ms	1964 KiB

towers

#include "towers.h"

#include <vector>
using namespace std;
int valley[100100];
vector<int>H;
void init(int N, std::vector<int> H_) {
    H=H_;
    for(int i=1;i<N;i++)
        valley[i]=valley[i-1]+(H[i]<H[i-1]&&H[i]<H[i+1]);
}
int dp[100100];
int max_towers(int l, int r, int D) {
    int ans=0;
    for(int i=l;i<=r;i++){
        dp[i]=0;
        int mx=0;
        for(int j=i;j-->l;){
            if(mx>=max(H[j],H[i])+D)
                dp[i]=max(dp[i],dp[j]);
            mx=max(mx,H[j]);
        }
        ans=max(ans,++dp[i]);
    }
    return ans;
}

• Subtask 1: 0 / 4
• Subtask 2: 11 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 17
• Subtask 6: 0 / 19
• Subtask 7: 0 / 23