Submission #530595

#	Time	Username	Problem	Language	Result	Execution time	Memory
530595		clams	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	27 ms	8384 KiB

triusis

/**
 * @authors bubu
 * @date    2022-02-25 18:25:40
 */
#include <bits/stdc++.h>
using namespace std;
#define int long long

signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    int n, m;
    cin >> n >> m;

    vector<int> a(n);
    for (int& i : a) cin >> i;

    vector<int> b;
    for (int i = 1; i <= n; i++) {
        if (i * m >= a[i - 1]) {
            b.push_back(m * i - a[i - 1]);
        }
    }

    vector<int> lnds;
    for (int i = 0; i < (int)b.size(); i++) {
        int j = upper_bound(lnds.begin(), lnds.end(), b[i]) - lnds.begin();
        if (j == lnds.size()) lnds.push_back(b[i]);
        else lnds[j] = b[i];
    }

    cout << n - (int)lnds.size() << '\n';
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:29:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |         if (j == lnds.size()) lnds.push_back(b[i]);
      |             ~~^~~~~~~~~~~~~~

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