Submission #911087

#	Time	Username	Problem	Language	Result	Execution time	Memory
911087		KactusJack	Rabbit Carrot (LMIO19_triusis)	C++14	100 / 100	24 ms	5908 KiB

triusis

#include<bits/stdc++.h>
#define ll long long
#define F first
#define S second
using namespace std;
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    ll n, m;
    cin >> n >> m;
    vector<ll> h(n+1);
    for(ll i = 1; i <= n; i++){
        cin >> h[i];
        h[i] -= m * i;
        h[i] *= -1;
    }
    vector<ll> dp;
    for(int i = 1; i <= n; i++){
        if(h[i] < 0){
            continue;
        }
        int j = upper_bound(dp.begin(), dp.end(), h[i]) - dp.begin();
        if(j == dp.size()){
            dp.push_back(h[i]);
        }
        else{
            dp[j] = h[i];
        }
    }
    cout << n - dp.size() << "\n";
}

Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:24:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         if(j == dp.size()){
      |            ~~^~~~~~~~~~~~

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