Submission #890605

#	Time	Username	Problem	Language	Result	Execution time	Memory
890605		NoLove	Rabbit Carrot (LMIO19_triusis)	C++14	100 / 100	26 ms	6812 KiB

triusis

/**
 *    author : Lăng Trọng Đạt
 *    created: 21-12-2023 
**/
#include <bits/stdc++.h>
using namespace std;
#ifndef LANG_DAT
#define db(...) ;
#endif // LANG_DAT
#define int int64_t
#define mp make_pair
#define f first
#define s second
#define pb push_back
#define all(v) (v).begin(), (v).end()
using pii = pair<int, int>;

const int MAXN = 2e5 + 5;
int g[MAXN], dp[MAXN];
int n, x;

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    if (fopen("hi.inp", "r")) {
        freopen("hi.inp", "r", stdin);
//        freopen("hi.out", "w", stdout);
    } 

    cin >> n >> x;
    vector<int> dp;
    for (int i = 1; i <= n; i++) {
        cin >> g[i];
        g[i] = i * x - g[i];;
        if (g[i] < 0) continue;
        auto id = upper_bound(all(dp), g[i]);
        if (id == dp.end()) dp.pb(g[i]);
        else *id = g[i];
    }
    cout << n - dp.size();
}

Compilation message (stderr)

triusis.cpp: In function 'int32_t main()':
triusis.cpp:25:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         freopen("hi.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

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