Submission #246340

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
246340	2020-07-08T17:53:18 Z	Sorting	Global Warming (CEOI18_glo)	C++14	55 / 100	2000 ms	3052 KB

#include <bits/stdc++.h>

using namespace std;

const int k_N = 2e5 + 3;
const int k_Inf = 1e9 + 3;

int n, x;
int t[k_N];

int ans[k_N];

int get_lis(){
    vector<int> dp;
    dp.push_back({-k_Inf});

    for(int i = 0; i < n; ++i){
        auto it = lower_bound(dp.begin(), dp.end(), t[i]);
        if(it == dp.end())
            dp.push_back(t[i]);
        else
            dp[it - dp.begin()] = t[i];

        ans[i] += dp.size() - 1;
    }
    return dp.size() - 1;
}

void get_lds(){
    vector<int> dp;
    dp.push_back({k_Inf});

    for(int i = n - 1; i >= 0; --i){
        int l = 0, r = dp.size();
        while(l != r){
            int mid = (l + r) >> 1;
            if(t[i] >= dp[mid])
                r = mid;
            else
                l = mid + 1;
        }
        if(l == dp.size())
            dp.push_back(t[i]);
        else
            dp[l] = t[i];

        //cout << dp.size() << "\n";
        ans[i - 1] += dp.size() - 1;
    }
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n >> x;
    for(int i = 0; i < n; ++i)
        cin >> t[i];

    if(x == k_Inf - 3){
        int answer = 0;
        get_lds();
        get_lis();

        for(int i = 0; i < n; ++i)
            answer = max(ans[i], answer);

        cout << answer << "\n";
    }
    else{
        int answer = 0;
        for(int i = 0; i < n; ++i){
            t[i] -= x;
            answer = max(get_lis(), answer);
            if(x == 0)
                break;
        }

        cout << answer << "\n";
    }
}

Compilation message

glo.cpp: In function 'void get_lds()':
glo.cpp:42:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(l == dp.size())
            ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	6 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	6 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	4 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	4 ms	384 KB	Output is correct
17	Correct	4 ms	384 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	6 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	4 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	4 ms	384 KB	Output is correct
17	Correct	4 ms	384 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	26 ms	384 KB	Output is correct
20	Correct	24 ms	384 KB	Output is correct
21	Correct	24 ms	384 KB	Output is correct
22	Correct	5 ms	512 KB	Output is correct
23	Correct	22 ms	384 KB	Output is correct
24	Correct	22 ms	384 KB	Output is correct
25	Correct	19 ms	384 KB	Output is correct
26	Correct	19 ms	384 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	2296 KB	Output is correct
2	Correct	45 ms	2168 KB	Output is correct
3	Correct	44 ms	2168 KB	Output is correct
4	Correct	46 ms	2296 KB	Output is correct
5	Correct	33 ms	2804 KB	Output is correct

Subtask #5
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	2070 ms	1024 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	29 ms	1528 KB	Output is correct
2	Correct	30 ms	1400 KB	Output is correct
3	Correct	56 ms	2168 KB	Output is correct
4	Correct	39 ms	3052 KB	Output is correct
5	Correct	21 ms	1852 KB	Output is correct
6	Correct	33 ms	2944 KB	Output is correct
7	Correct	38 ms	2944 KB	Output is correct
8	Correct	27 ms	1408 KB	Output is correct

Subtask #7
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	6 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	4 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	4 ms	384 KB	Output is correct
17	Correct	4 ms	384 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	26 ms	384 KB	Output is correct
20	Correct	24 ms	384 KB	Output is correct
21	Correct	24 ms	384 KB	Output is correct
22	Correct	5 ms	512 KB	Output is correct
23	Correct	22 ms	384 KB	Output is correct
24	Correct	22 ms	384 KB	Output is correct
25	Correct	19 ms	384 KB	Output is correct
26	Correct	19 ms	384 KB	Output is correct
27	Correct	44 ms	2296 KB	Output is correct
28	Correct	45 ms	2168 KB	Output is correct
29	Correct	44 ms	2168 KB	Output is correct
30	Correct	46 ms	2296 KB	Output is correct
31	Correct	33 ms	2804 KB	Output is correct
32	Execution timed out	2070 ms	1024 KB	Time limit exceeded
33	Halted	0 ms	0 KB	-

Submission #246340

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
0 / 25.0