Submission #830161

#	Time	Username	Problem	Language	Result	Execution time	Memory
830161		rnl42	Radio Towers (IOI22_towers)	C++17	23 / 100	4064 ms	1936 KiB

towers

#include "towers.h"
#include <vector>
using namespace std;

int N;
vector<int> H;

void init(int __N, vector<int> __H) {
    N = __N, H = __H;
}

int max_towers(int L, int R, int D) {
    vector<int> v;
    for (int i = L; i <= R; i++) {
        bool mode = v.size()&1;
        if (mode) {
            if (H[i]-D >= H[v.back()]) {
                v.push_back(i);
            } else if (H[i] < H[v.back()]) {
                v.back() = i;
            }
        } else {
            if (v.empty() || H[i] <= H[v.back()]-D) {
                v.push_back(i);
            } else if (H[i] > H[v.back()]) {
                v.back() = i;
            }
        }
    }
    return (int)(v.size()+1)>>1;
}

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