Submission #495563

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
495563	2021-12-19T11:00:08 Z	aris12345678	Global Warming (CEOI18_glo)	C++14	100 / 100	72 ms	5372 KB

#include <bits/stdc++.h>
using namespace std;
 
const int mxN = 200005;
int t[mxN], dp1[mxN], pref[mxN], dp2[mxN];
 
int main() {
    int n, x;
    scanf("%d %d", &n, &x);
    for(int i = 0; i < n; i++)
        scanf("%d", &t[i]);
    fill(dp1, dp1+n, INT_MAX);
    int ans = 0;
    for(int i = 0; i < n; i++) {
        int pos = lower_bound(dp1, dp1+n, t[i])-dp1;
        dp1[pos] = t[i];
        pref[i] = pos+1;
        ans = max(ans, pref[i]);
    }
    fill(dp2, dp2+n, INT_MAX);
    for(int i = n-1; i >= 0; i--) {
        int res = lower_bound(dp2, dp2+n, -t[i]+x)-dp2;
        ans = max(ans, pref[i]+res);
        int pos = lower_bound(dp2, dp2+n, -t[i])-dp2;
        dp2[pos] = -t[i];
    }
    printf("%d\n", ans);
    return 0;
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d %d", &n, &x);
      |     ~~~~~^~~~~~~~~~~~~~~~~
glo.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d", &t[i]);
      |         ~~~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	204 KB	Output is correct
2	Correct	204 KB	Output is correct
3	Correct	204 KB	Output is correct
4	Correct	204 KB	Output is correct
5	Correct	204 KB	Output is correct
6	Correct	204 KB	Output is correct
7	Correct	204 KB	Output is correct
8	Correct	204 KB	Output is correct
9	Correct	204 KB	Output is correct
10	Correct	204 KB	Output is correct
11	Correct	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	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 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	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 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	0 ms	204 KB	Output is correct
16	Correct	0 ms	300 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	0 ms	204 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	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 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	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 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	0 ms	204 KB	Output is correct
16	Correct	0 ms	300 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	1 ms	304 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	0 ms	336 KB	Output is correct
26	Correct	1 ms	304 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	51 ms	3540 KB	Output is correct
2	Correct	56 ms	5332 KB	Output is correct
3	Correct	72 ms	5372 KB	Output is correct
4	Correct	54 ms	5336 KB	Output is correct
5	Correct	43 ms	4496 KB	Output is correct

Subtask #5
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	1228 KB	Output is correct
2	Correct	13 ms	1556 KB	Output is correct
3	Correct	13 ms	1480 KB	Output is correct
4	Correct	11 ms	1352 KB	Output is correct
5	Correct	0 ms	208 KB	Output is correct
6	Correct	10 ms	1320 KB	Output is correct
7	Correct	10 ms	1556 KB	Output is correct

Subtask #6
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	1932 KB	Output is correct
2	Correct	28 ms	2740 KB	Output is correct
3	Correct	56 ms	5256 KB	Output is correct
4	Correct	40 ms	4552 KB	Output is correct
5	Correct	20 ms	2320 KB	Output is correct
6	Correct	37 ms	4460 KB	Output is correct
7	Correct	40 ms	5020 KB	Output is correct
8	Correct	22 ms	2712 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	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 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	204 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 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	0 ms	204 KB	Output is correct
16	Correct	0 ms	300 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	1 ms	304 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	0 ms	336 KB	Output is correct
26	Correct	1 ms	304 KB	Output is correct
27	Correct	51 ms	3540 KB	Output is correct
28	Correct	56 ms	5332 KB	Output is correct
29	Correct	72 ms	5372 KB	Output is correct
30	Correct	54 ms	5336 KB	Output is correct
31	Correct	43 ms	4496 KB	Output is correct
32	Correct	12 ms	1228 KB	Output is correct
33	Correct	13 ms	1556 KB	Output is correct
34	Correct	13 ms	1480 KB	Output is correct
35	Correct	11 ms	1352 KB	Output is correct
36	Correct	0 ms	208 KB	Output is correct
37	Correct	10 ms	1320 KB	Output is correct
38	Correct	10 ms	1556 KB	Output is correct
39	Correct	27 ms	1932 KB	Output is correct
40	Correct	28 ms	2740 KB	Output is correct
41	Correct	56 ms	5256 KB	Output is correct
42	Correct	40 ms	4552 KB	Output is correct
43	Correct	20 ms	2320 KB	Output is correct
44	Correct	37 ms	4460 KB	Output is correct
45	Correct	40 ms	5020 KB	Output is correct
46	Correct	22 ms	2712 KB	Output is correct
47	Correct	26 ms	2824 KB	Output is correct
48	Correct	32 ms	2760 KB	Output is correct
49	Correct	61 ms	5300 KB	Output is correct
50	Correct	40 ms	4516 KB	Output is correct
51	Correct	31 ms	3428 KB	Output is correct
52	Correct	40 ms	4648 KB	Output is correct
53	Correct	50 ms	4660 KB	Output is correct
54	Correct	46 ms	5332 KB	Output is correct
55	Correct	46 ms	5276 KB	Output is correct

Submission #495563

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 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 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
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0