Submission #797678

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
797678	2023-07-29 18:13:54	GoldLight	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	23 ms	4156 KiB

triusis

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#include <bits/stdc++.h>
using namespace std;
void fast(){ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);}
int main(){
    fast();
    int n, m; cin>>n>>m;
    int a[n+1]; a[0]=0;
    for(int i=1; i<=n; i++){
        cin>>a[i];
        a[i]=m*i-a[i];
    }
    vector<int> v;
    for(int i=1; i<=n; i++){
        if(a[i]<0) continue;
        int idx=upper_bound(v.begin(), v.end(), a[i])-v.begin();
        if(idx==v.size()) v.push_back(a[i]);
        else v[idx]=a[i];
    }
    cout<<n-v.size();
}
/*
const int N=1e5;
vector<int> v[N+1];
int lv[N+1];
int main(){
    fast();
    int n; cin>>n;
    for(int i=1; i<n; i++){
        int x, y; cin>>x>>y;
 
 
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Compilation message (stderr)

triusis.cpp: In function 'int main()':
triusis.cpp:17:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         if(idx==v.size()) v.push_back(a[i]);
      |            ~~~^~~~~~~~~~

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