Submission #1234291

#	Time	Username	Problem	Language	Result	Execution time	Memory
1234291		yixuan19	Global Warming (CEOI18_glo)	C++20	0 / 100	2097 ms	2748 KiB

glo

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int N, max_change, temp;
    cin >> N >> max_change;
    vector<int> temps;
    for (int i = 0; i < N; ++i){
        cin >> temp;
        temps.push_back(temp);
    }
    int dp[N+1][2];
    for (int i = 0; i < N; ++i){
        for (int j = 0; j < 2; ++j){
            dp[i][j] = 0;
        }
    }
    
    dp[0][0] = 1;
    dp[0][1] = 1;
    
    for (int i = 1; i < N; ++i){
        int maxi0 = 0;
        for (int j = 0; j < i; ++j){
            if (temps[j] <= temps[i]  -1){
                maxi0 = max(maxi0,dp[j][0]+1);
            }
        }
        int maxi1= 0;
        for (int j = 0; j < i; ++j){
            if (temps[j] <= temps[i]  -1){
                maxi1 = max(maxi1,dp[j][1]+1);
            }
        }
        for (int j = 0; j < i; ++j){
            if (temps[j] <= temps[i]  -1 + max_change){
                maxi1 = max(maxi1,dp[j][0]+1);
            }
        }
        dp[i][0] = maxi0;
        dp[i][1] = maxi1;

        //cout<<"query 0 "<<i<<" "<<query(decalage,temps[i] + decalage -1)<<endl;
        //cout<<"query 1 "<<i<<" "<<query(decalage,temps[i] + decalage -1 + max_change)<<endl;
        //cout<<"query 2 "<<i<<" "<<query2(decalage,temps[i] + decalage -1)<<endl;
        //cout<<max(dp[i][1],query2(decalage,temps[i] + decalage -1))<<endl;
    }

    int maxi = 0;
    for (int i = 0; i < N; ++i ){
        for (int j = 0; j < 2; ++j){
            //cout<<dp[i][j]<<" ";
            maxi = max(maxi, dp[i][j]);
        }
        //cout<<endl;
    }
    cout<<maxi<<endl;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25