Submission #733190

#	Time	Username	Problem	Language	Result	Execution time	Memory
733190		puppy	Radio Towers (IOI22_towers)	C++17	4 / 100	940 ms	1568 KiB

towers

#include "towers.h"

#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;
namespace {
    int N, K;
    int H[100005];
    int rH[100005];
}

void init(int N, std::vector<int> H) {
    ::N = N;
    ::K = -1;
    for (int i = 0; i < N; i++) {
        ::H[i] = H[i];
    }
    for (int i = 0; i < N - 1; i++) {
        if (H[i] > H[i+1]) {
            K = i;
            break;
        }
    }
    if (K == -1) K = N - 1;
    for (int i = 0; i < N; i++) rH[i] = H[N-1-i];
}

int max_towers(int L, int R, int D) {
  if (R <= K || K <= L) return 1;
  return (H[L] <= H[K] - D && H[R] <= H[K] - D) ? 2 : 1;
}

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