Submission #1032438

#	Time	Username	Problem	Language	Result	Execution time	Memory
1032438		ArthuroWich	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	21 ms	8540 KiB

triusis

#include <bits/stdc++.h>
using namespace std;
#define int long long int
void solve() {
    int n, m, ans = 0;
    cin >> n >> m;
    vector<int> a(n), b, dp;
    for (int &x : a) {
        cin >> x;
    }
    for (int i = 0; i < n; i++) {
        if (a[i] <= (i+1)*m) {
            b.push_back((i+1)*m-a[i]);
        }
    }
    for (int i : b) {
        int pos = upper_bound(dp.begin(), dp.end(), i) - dp.begin();
        if (pos == dp.size()) {
            dp.push_back(i);
            ans = dp.size();
        } else {
            dp[pos] = i;
        }
    }
    cout << n-ans << endl;
}
int32_t main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t;
    t = 1;
    while(t--) {
        solve();
    }
}

Compilation message (stderr)

triusis.cpp: In function 'void solve()':
triusis.cpp:18:17: 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]
   18 |         if (pos == dp.size()) {
      |             ~~~~^~~~~~~~~~~~

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