Submission #958650

#	Time	Username	Problem	Language	Result	Execution time	Memory
958650		Bodisha	Rabbit Carrot (LMIO19_triusis)	C++17	0 / 100	0 ms	348 KiB

triusis

#include <bits/stdc++.h>
#define MAX_N 200005
#define MAX_A 1000000007

using namespace std;

int n, m;
int poles[MAX_N];
int dp[MAX_N];

int lds() {
    dp[0] = MAX_A;
    for(int i = 1; i <= n + 1; i++) {
        dp[i] = -1;
    }
    for(int i = 0; i <= n; i++) {
        int l = 0, r = n + 1;
        int ans = 0;
        while(l <= r) {
            int mid = l + (r - l) / 2;
            if(dp[mid] <= poles[i] && poles[i] - dp[mid] < m) {
                ans = mid;
                r = mid - 1;
            } else {
                l = mid + 1;
            }
        }
        dp[ans] = poles[i];
    }
    for(int i = 1; i <= n + 1; i++) {
        if(poles[i] == -1) {
            return i - 1;
        }
    }
    return n + 1;
}

int main() {
    cin >> n >> m;
    poles[0] = 0;
    for(int i = 1; i <= n; i++) {
        cin >> poles[i];
    }
    cout << lds() - 1;
    return 0;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37