Submission #696698

#	Time	Username	Problem	Language	Result	Execution time	Memory
696698		Alihan_8	Rabbit Carrot (LMIO19_triusis)	C++17	0 / 100	1 ms	324 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> dp(n+1);
    for ( int i = 1; i <= n; i++ ){
        if ( M*i < p[i-1] ) continue;
        dp[i] = 1;
        for ( int j = i-1; j > 0; j-- ){
            if ( p[j-1] <= M*j and p[j-1] >= p[i-1]+(i-j)*M ){
                dp[i] = max(dp[i], dp[j]+1);
            }
        }
    }
    cout << n-*max_element(all(dp));

	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: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37