Submission #893858

#	Time	Username	Problem	Language	Result	Execution time	Memory
893858		agawron	Rabbit Carrot (LMIO19_triusis)	C++14	100 / 100	22 ms	4760 KiB

triusis

#include<bits/stdc++.h>

using namespace std;

#define pb push_back


constexpr int MAX_N = 2e5 + 5;
constexpr int INF = 1e9;

int n, m;
int a[MAX_N];
int b[MAX_N];

vector <int> seq;

int LIS(){
    vector<int> min_endings;
	for (int i : seq) {
		

		int pos = std::upper_bound(min_endings.begin(), min_endings.end(), i) -
		          min_endings.begin();
		if (pos == min_endings.size()) {
			min_endings.push_back(i);
		} else {
			min_endings[pos] = i;
		}
	}
	return min_endings.size();


}


int main(){
    scanf("%d %d", &n, &m);

    for(int i = 1; i <= n; i++){
        scanf("%d", &a[i]);
    }

    int cnt = 0;

    for(int i = 1; i <= n; i++){
        b[i] = m * i - a[i];


        if(b[i] >= 0) seq.pb(b[i]);
    }



    cnt = n - LIS();

    printf("%d\n", cnt);
    return 0;
}

Compilation message (stderr)

triusis.cpp: In function 'int LIS()':
triusis.cpp:24:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   if (pos == min_endings.size()) {
      |       ~~~~^~~~~~~~~~~~~~~~~~~~~
triusis.cpp: In function 'int main()':
triusis.cpp:37:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |     scanf("%d %d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
triusis.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         scanf("%d", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~

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