Submission #383170

#	Time	Username	Problem	Language	Result	Execution time	Memory
383170		MODDI	Rabbit Carrot (LMIO19_triusis)	C++14	100 / 100	34 ms	7140 KiB

triusis

#pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>
#pragma pack(0)
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
#define MOD 1000000007
#define MOD2 998244353
#define _INFINITY 9223372036854775807
#define fast ios::sync_with_stdio(0), cin.tie(0)
using namespace std;
 
ll n, m, arr[200005], res[200005];
vector<ll> dp;
signed main()
{
    fast;
    cin >> n >> m;
    for (int i = 0; i < n; i++)
        cin >> arr[i];
    for (int i = 0; i < n; i++)
        arr[i] = ((i + 1) * m) - arr[i];
    for (int i = 0; i < n; i++)
    {
        if(arr[i] < 0)
            continue;
        int pos = upper_bound(dp.begin(), dp.end(), arr[i]) - dp.begin();
        if (pos == dp.size())
            dp.emplace_back(arr[i]);
        else
            dp[pos] = arr[i];
        res[i] = dp.size();
    }
    cout << n - dp.size() << '\n';
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:30:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         if (pos == dp.size())
      |             ~~~~^~~~~~~~~~~~

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