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Submission #476510

# Submission time Handle Problem Language Result Execution time Memory
476510 2021-09-27T12:46:52 Z RambaXGorilla Global Warming (CEOI18_glo) C++17
100 / 100
 86 ms 5360 KB 
#include<cstdio>
#include<climits>
#include<algorithm>
using namespace std;
int N, X;
int temps[200010];
int incSubs[200010];
int decSubs[200010];
int lengths[200010];
int main(){
    scanf("%d%d",&N,&X);
    for(int i = 0;i < N;i++){
        scanf("%d",&temps[i]);
    }
    fill(incSubs, incSubs + N, INT_MAX);
    for(int i = 0;i < N;i++){
        int pos = lower_bound(incSubs, incSubs + N, temps[i]) - incSubs;
        incSubs[pos] = temps[i];
        lengths[i] = pos + 1;
    }
    int longest = 0;
    fill(decSubs, decSubs + N, INT_MAX);
    for(int i = N - 1;i > -1;i--){
        int pos1 = lower_bound(decSubs, decSubs + N, X - temps[i]) - decSubs;
        longest = max(longest, lengths[i] + pos1);
        int pos2 = lower_bound(decSubs, decSubs + N, -temps[i]) - decSubs;
        decSubs[pos2] = -temps[i];
    }
    printf("%d",longest);
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d%d",&N,&X);
      |     ~~~~~^~~~~~~~~~~~~~
glo.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf("%d",&temps[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 284 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 288 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 292 KB Output is correct
11 Correct 0 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 284 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 288 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 292 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 284 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 284 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 288 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 292 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 284 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 73 ms 5360 KB Output is correct
2 Correct 69 ms 5272 KB Output is correct
3 Correct 69 ms 5316 KB Output is correct
4 Correct 86 ms 5308 KB Output is correct
5 Correct 51 ms 4492 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 1520 KB Output is correct
2 Correct 15 ms 1612 KB Output is correct
3 Correct 22 ms 1444 KB Output is correct
4 Correct 13 ms 1272 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 14 ms 1408 KB Output is correct
7 Correct 14 ms 1500 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 2736 KB Output is correct
2 Correct 32 ms 2756 KB Output is correct
3 Correct 65 ms 5316 KB Output is correct
4 Correct 54 ms 4544 KB Output is correct
5 Correct 27 ms 2408 KB Output is correct
6 Correct 46 ms 4440 KB Output is correct
7 Correct 49 ms 5052 KB Output is correct
8 Correct 27 ms 2756 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 284 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 288 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 292 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 284 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 73 ms 5360 KB Output is correct
28 Correct 69 ms 5272 KB Output is correct
29 Correct 69 ms 5316 KB Output is correct
30 Correct 86 ms 5308 KB Output is correct
31 Correct 51 ms 4492 KB Output is correct
32 Correct 16 ms 1520 KB Output is correct
33 Correct 15 ms 1612 KB Output is correct
34 Correct 22 ms 1444 KB Output is correct
35 Correct 13 ms 1272 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 14 ms 1408 KB Output is correct
38 Correct 14 ms 1500 KB Output is correct
39 Correct 31 ms 2736 KB Output is correct
40 Correct 32 ms 2756 KB Output is correct
41 Correct 65 ms 5316 KB Output is correct
42 Correct 54 ms 4544 KB Output is correct
43 Correct 27 ms 2408 KB Output is correct
44 Correct 46 ms 4440 KB Output is correct
45 Correct 49 ms 5052 KB Output is correct
46 Correct 27 ms 2756 KB Output is correct
47 Correct 33 ms 2800 KB Output is correct
48 Correct 32 ms 2708 KB Output is correct
49 Correct 68 ms 5316 KB Output is correct
50 Correct 52 ms 4544 KB Output is correct
51 Correct 41 ms 3472 KB Output is correct
52 Correct 58 ms 4676 KB Output is correct
53 Correct 49 ms 4548 KB Output is correct
54 Correct 55 ms 5316 KB Output is correct
55 Correct 60 ms 5344 KB Output is correct