Submission #1034478

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034478		coolsentenceidontremember	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	19 ms	6868 KiB

triusis

#include<bits/stdc++.h>

#pragma GCC optimize("O3", "unroll-loops")


#define ll long long
#define ld long double
#define ff first
#define ss second
#define db double
#define time_begin() auto begin = chrono::high_resolution_clock::now()
#define time_end() auto end = chrono::high_resolution_clock::now(); auto elapsed = chrono::duration_cast<chrono::nanoseconds>(end-begin); auto sec = elapsed.count() * 1e-9; cerr << "\n\nExecution time: " << sec << " seconds";
#define check_time() cerr << "\nStatus : "; if (sec>1) cerr << "Time Limit Exceeded 1!!!1!111"; else cerr << "You good brother"

using namespace std;

void setIO(string s = ""){
 ios_base::sync_with_stdio(false);
 cin.tie(nullptr);
 cout.tie(nullptr);
 if (!s.empty()){
	freopen((s+".in").c_str(), "r", stdin);
	freopen((s+".out").c_str(), "w", stdout);
	}
}



int main(){
   setIO();
   int n, m;
   cin >> n >> m;
   vector<ll> ok;
   for (int i = 1; i <= n; i++){
   	  ll a;
   	  cin >> a;
   	  if (1ll*m*i >= a) ok.push_back(1ll*m*i-a);
   }
   vector<ll> dp;
   for (const ll &x : ok){
   	int pos = upper_bound(dp.begin(), dp.end(), x) - dp.begin();
   	if (pos == dp.size()) dp.push_back(x);
   	else dp[pos] = x;
   }
   cout << n-(int)dp.size();
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:42:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     if (pos == dp.size()) dp.push_back(x);
      |         ~~~~^~~~~~~~~~~~
triusis.cpp: In function 'void setIO(std::string)':
triusis.cpp:22:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |  freopen((s+".in").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
triusis.cpp:23:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |  freopen((s+".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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