Submission #696705

#	Time	Username	Problem	Language	Result	Execution time	Memory
696705		Alihan_8	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	27 ms	8392 KiB

triusis

#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make_pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

    int n, M; cin >> n >> M;
    vector <int> p(n);
    for ( auto &i: p ) cin >> i;
    vector <int> res;
    for ( int i = 0; i < n; i++ ){
        if ( (i+1)*M >= p[i] ) res.pb((i+1)*M-p[i]);
    }
    vector <int> dp;
    for ( auto i: res ){
        auto it = upper_bound(all(dp), i)-dp.begin();
        if ( it == (int)dp.size() ) dp.pb(i);
        else dp[it] = i;
    }
    cout << n-(int)dp.size();

	cout << '\n';
}

Compilation message (stderr)

triusis.cpp: In function 'void IO(std::string)':
triusis.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
triusis.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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