Submission #1088659

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088659		firegirlwaterboy	Rabbit Carrot (LMIO19_triusis)	C++14	100 / 100	27 ms	5380 KiB

triusis

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;

void solve() {
    int n, m;
    cin >> n >> m;
    vector<int> a(n);
    for (int &p : a) {
        cin >> p;
    }
    vector<int> b;
    for (int i = 1; i <= n; i++) {
        if (i * m >= a[i - 1]) b.push_back(i * m - a[i - 1]);
    }
    vector<int> ans;
    for (int i : b) {
        int idx = upper_bound(ans.begin(), ans.end(), i) - ans.begin();
        if (idx == ans.size()) {
            ans.push_back(i);
        } else {
            ans[idx] = i;
        }
    }
    cout << n - ans.size() << "\n";
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}

Compilation message (stderr)

triusis.cpp: In function 'void solve()':
triusis.cpp:20:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |         if (idx == ans.size()) {
      |             ~~~~^~~~~~~~~~~~~

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