Submission #1361611

#	Time	Username	Problem	Language	Result	Execution time	Memory
1361611		tarjanmici	Global Warming (CEOI18_glo)	C++20	100 / 100	53 ms	2728 KiB

glo

#include<bits/stdc++.h>
using namespace std;

int main(){
    int n, x;
    cin>>n>>x;
    vector<int> t(n+1);
    for(int i=1;i<=n;i++) cin>>t[i];
    int ans=0;
    vector<int> dp0(n+1, INT_MAX), dp1(n+1, INT_MAX);
    dp0[0]=0;
    dp1[0]=0;
    for(int i=1;i<=n;i++){
        int a=lower_bound(dp0.begin(), dp0.end(), t[i])-dp0.begin(), b=lower_bound(dp1.begin(), dp1.end(), t[i]+x)-dp1.begin();
        dp1[b]=min(dp1[b], t[i]+x);
        dp1[a]=min(dp1[a], t[i]);
        dp0[a]=t[i];
        ans=max(ans, max(a, b));
    }
    cout<<ans<<'\n';
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 13 / 13
• Subtask 4: 10 / 10
• Subtask 5: 20 / 20
• Subtask 6: 17 / 17
• Subtask 7: 25 / 25