Submission #776747

#	Time	Username	Problem	Language	Result	Execution time	Memory
776747		alexander707070	Radio Towers (IOI22_towers)	C++17	11 / 100	4072 ms	1456 KiB

towers

#include<bits/stdc++.h>
#define MAXN 100007
using namespace std;

int n,h[MAXN],maxh;
int dp[MAXN],ans;

void init(int N,vector<int> H){
    n=N;
    for(int i=1;i<=n;i++){
        h[i]=H[i-1];
    }
}

int max_towers(int L, int R, int D){
    ans=0; L++; R++;

    for(int i=L;i<=R;i++){
        maxh=0; dp[i]=1;

        for(int f=i-1;f>=L;f--){
            if(h[f]<=maxh-D and h[i]<=maxh-D){
                dp[i]=max(dp[i],dp[f]+1);
            }
            maxh=max(maxh,h[f]);
        }

        ans=max(ans,dp[i]);
    }

    return ans;
}

/*
int main(){
    init(7, {10, 20, 60, 40, 50, 30, 70});
    cout<<max_towers(1,5,10)<<"\n";
    cout<<max_towers(0, 6, 17)<<"\n";
}
*/

• 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