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Submission #170006

# Submission time Handle Problem Language Result Execution time Memory
170006 2019-12-23T15:10:52 Z mhy908 Global Warming (CEOI18_glo) C++14
100 / 100
 89 ms 5880 KB 
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define F first
#define S second
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
const LL llinf=9000000000000000000;
const int inf=2000000000;
int n, x;
int lis[200010], lds[200010], ans, arr[200010];
pair<int, int> change[200010];
int main()
{
    scanf("%d %d", &n, &x);
    for(int i=1; i<=n; i++){
        scanf("%d", &arr[i]);
        lis[i]=inf;
    }
    for(int i=1; i<=n; i++){
        int it=lower_bound(lis+1, lis+n+1, arr[i])-lis;
        change[i]=mp(it, lis[it]);
        lis[it]=arr[i];
        ans=max(ans, it);
    }
    for(int i=n; i>=1; i--){
        int it=lower_bound(lds+1, lds+n+1, -arr[i])-lds;
        lds[it]=-arr[i];
        lis[change[i].F]=change[i].S;
        int jt=lower_bound(lis+1, lis+n+1, arr[i]+x)-lis-1;
        ans=max(ans, it+jt);
    }
    printf("%d", ans);
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &x);
     ~~~~~^~~~~~~~~~~~~~~~~
glo.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &arr[i]);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 252 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 252 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 252 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 3448 KB Output is correct
2 Correct 85 ms 3580 KB Output is correct
3 Correct 87 ms 3440 KB Output is correct
4 Correct 89 ms 3448 KB Output is correct
5 Correct 66 ms 3832 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 1148 KB Output is correct
2 Correct 21 ms 1144 KB Output is correct
3 Correct 21 ms 1144 KB Output is correct
4 Correct 17 ms 1144 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 17 ms 1296 KB Output is correct
7 Correct 18 ms 1144 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 1912 KB Output is correct
2 Correct 38 ms 1956 KB Output is correct
3 Correct 76 ms 3616 KB Output is correct
4 Correct 66 ms 3892 KB Output is correct
5 Correct 32 ms 2168 KB Output is correct
6 Correct 58 ms 3704 KB Output is correct
7 Correct 56 ms 3704 KB Output is correct
8 Correct 33 ms 1876 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 292 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 252 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 85 ms 3448 KB Output is correct
28 Correct 85 ms 3580 KB Output is correct
29 Correct 87 ms 3440 KB Output is correct
30 Correct 89 ms 3448 KB Output is correct
31 Correct 66 ms 3832 KB Output is correct
32 Correct 22 ms 1148 KB Output is correct
33 Correct 21 ms 1144 KB Output is correct
34 Correct 21 ms 1144 KB Output is correct
35 Correct 17 ms 1144 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 17 ms 1296 KB Output is correct
38 Correct 18 ms 1144 KB Output is correct
39 Correct 38 ms 1912 KB Output is correct
40 Correct 38 ms 1956 KB Output is correct
41 Correct 76 ms 3616 KB Output is correct
42 Correct 66 ms 3892 KB Output is correct
43 Correct 32 ms 2168 KB Output is correct
44 Correct 58 ms 3704 KB Output is correct
45 Correct 56 ms 3704 KB Output is correct
46 Correct 33 ms 1876 KB Output is correct
47 Correct 42 ms 2896 KB Output is correct
48 Correct 42 ms 2936 KB Output is correct
49 Correct 85 ms 5368 KB Output is correct
50 Correct 63 ms 5052 KB Output is correct
51 Correct 50 ms 3960 KB Output is correct
52 Correct 65 ms 5112 KB Output is correct
53 Correct 57 ms 5092 KB Output is correct
54 Correct 60 ms 5880 KB Output is correct
55 Correct 74 ms 5496 KB Output is correct