Submission #583292

#	Time	Username	Problem	Language	Result	Execution time	Memory
583292		leroycut	Rabbit Carrot (LMIO19_triusis)	C++17	0 / 100	1 ms	320 KiB

triusis

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;

const int N = 100003, mod = 1e9 + 7, inf = 1e9 + 7;

ll lis(vector<ll>& a){
    vector<ll> dp;
    for(auto i : a){
        auto j = upper_bound(dp.begin(), dp.end(), i) - dp.begin();
        if(j == dp.size()){
            dp.push_back(i);
        }
        else{
            dp[j] = i;
        }
    }
    return dp.size();
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    // freopen("cowjog.in", "r", stdin);
    // freopen("cowjog.out", "w", stdout);   

    ll n, m;
    cin >> n >> m;

    vector<ll> v(n + 1), g;

    v[0] = 0;

    for(ll i = 1; i <= n; ++i){
        cin >> v[i];
        v[i] -= m * i;
    }

    int i = 1;

    while(v[i - 1] >= v[i]){
        i++;
    }

    for(int j = i; j <= n; ++j){
        g.push_back(v[j]);
    }

    cout << lis(g);
}

Compilation message (stderr)

triusis.cpp: In function 'll lis(std::vector<long long int>&)':
triusis.cpp:13:14: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         if(j == dp.size()){
      |            ~~^~~~~~~~~~~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37