Submission #921818

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
921818	2024-02-04T10:53:12 Z	StefanSebez	Global Warming (CEOI18_glo)	C++14	100 / 100	715 ms	36976 KB

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N=6*1e6+50;
const ll inf=1e9+50;
int root,nc,maks[N],lc[N],rc[N];
int pref[200050],suf[200050];
ll a[200050];
void Update(int &c,ll ss,ll se,int qind,int qval)
{
	if(!c) c=++nc;
	if(ss==se) {maks[c]=max(maks[c],qval);return;}
	ll mid=(ss+se)/2;if(ss+se<0) mid--;
	if(qind<=mid) Update(lc[c],ss,mid,qind,qval);
	else Update(rc[c],mid+1,se,qind,qval);
	maks[c]=max(maks[lc[c]],maks[rc[c]]);
}
int Get(int c,ll ss,ll se,ll qs,ll qe)
{
	if(qs>qe || !c) return 0;
	if(qs<=ss && se<=qe) return maks[c];
	if(qe<ss || se<qs) return 0;
	ll mid=(ss+se)/2;if(ss+se<0) mid--;
	return max(Get(lc[c],ss,mid,qs,qe),Get(rc[c],mid+1,se,qs,qe));
}
void CLEAR(){
	for(int i=0;i<=nc;i++) maks[i]=lc[i]=rc[i]=0;
	root=nc=0;
}
int main()
{
    int n;ll x;scanf("%i%lld",&n,&x);
    for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
    for(int i=1;i<=n;i++)
	{
		pref[i]=1+Get(root,0,inf,0,a[i]-1);
		Update(root,0,inf,a[i],pref[i]);
	}
	CLEAR();
	for(int i=n;i>=1;i--)
	{
		suf[i]=1+Get(root,0,inf,a[i]+1,inf);
		Update(root,0,inf,a[i],suf[i]);
	}
	CLEAR();
	/*for(int i=1;i<=n;i++) printf("%i ",pref[i]);
	printf("\n");
	for(int i=1;i<=n;i++) printf("%i ",suf[i]);
	printf("\n");*/
	int res=0;
	for(int i=1;i<=n;i++)
	{
		res=max(res,Get(root,0,2*inf,0,a[i]+x-1)+suf[i]);
		Update(root,0,2*inf,a[i],pref[i]);
		//printf("%i %i\n",i,res);
	}
	CLEAR();
	for(int i=n;i>=1;i--)
	{
		res=max(res,pref[i]+Get(root,0,2*inf,a[i]+1,2*inf));
		Update(root,0,2*inf,a[i]+x,suf[i]);
	}
	printf("%i\n",res);
    return 0;
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:32:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |     int n;ll x;scanf("%i%lld",&n,&x);
      |                ~~~~~^~~~~~~~~~~~~~~~
glo.cpp:33:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     for(int i=1;i<=n;i++) scanf("%lld",&a[i]);
      |                           ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	3 ms	4700 KB	Output is correct
20	Correct	3 ms	4744 KB	Output is correct
21	Correct	3 ms	4700 KB	Output is correct
22	Correct	3 ms	4696 KB	Output is correct
23	Correct	2 ms	4444 KB	Output is correct
24	Correct	2 ms	4444 KB	Output is correct
25	Correct	2 ms	4444 KB	Output is correct
26	Correct	2 ms	4444 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	620 ms	36968 KB	Output is correct
2	Correct	624 ms	36944 KB	Output is correct
3	Correct	641 ms	36976 KB	Output is correct
4	Correct	642 ms	36976 KB	Output is correct
5	Correct	300 ms	21420 KB	Output is correct

Subtask #5
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	120 ms	13088 KB	Output is correct
2	Correct	108 ms	12880 KB	Output is correct
3	Correct	107 ms	12884 KB	Output is correct
4	Correct	74 ms	8532 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	75 ms	5592 KB	Output is correct
7	Correct	92 ms	10384 KB	Output is correct

Subtask #6
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	238 ms	21332 KB	Output is correct
2	Correct	255 ms	21444 KB	Output is correct
3	Correct	556 ms	36948 KB	Output is correct
4	Correct	259 ms	21656 KB	Output is correct
5	Correct	135 ms	6780 KB	Output is correct
6	Correct	218 ms	9044 KB	Output is correct
7	Correct	231 ms	9648 KB	Output is correct
8	Correct	161 ms	16472 KB	Output is correct

Subtask #7
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4444 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4444 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	3 ms	4700 KB	Output is correct
20	Correct	3 ms	4744 KB	Output is correct
21	Correct	3 ms	4700 KB	Output is correct
22	Correct	3 ms	4696 KB	Output is correct
23	Correct	2 ms	4444 KB	Output is correct
24	Correct	2 ms	4444 KB	Output is correct
25	Correct	2 ms	4444 KB	Output is correct
26	Correct	2 ms	4444 KB	Output is correct
27	Correct	620 ms	36968 KB	Output is correct
28	Correct	624 ms	36944 KB	Output is correct
29	Correct	641 ms	36976 KB	Output is correct
30	Correct	642 ms	36976 KB	Output is correct
31	Correct	300 ms	21420 KB	Output is correct
32	Correct	120 ms	13088 KB	Output is correct
33	Correct	108 ms	12880 KB	Output is correct
34	Correct	107 ms	12884 KB	Output is correct
35	Correct	74 ms	8532 KB	Output is correct
36	Correct	1 ms	4444 KB	Output is correct
37	Correct	75 ms	5592 KB	Output is correct
38	Correct	92 ms	10384 KB	Output is correct
39	Correct	238 ms	21332 KB	Output is correct
40	Correct	255 ms	21444 KB	Output is correct
41	Correct	556 ms	36948 KB	Output is correct
42	Correct	259 ms	21656 KB	Output is correct
43	Correct	135 ms	6780 KB	Output is correct
44	Correct	218 ms	9044 KB	Output is correct
45	Correct	231 ms	9648 KB	Output is correct
46	Correct	161 ms	16472 KB	Output is correct
47	Correct	256 ms	21324 KB	Output is correct
48	Correct	261 ms	21452 KB	Output is correct
49	Correct	715 ms	36968 KB	Output is correct
50	Correct	310 ms	21648 KB	Output is correct
51	Correct	192 ms	6928 KB	Output is correct
52	Correct	290 ms	9552 KB	Output is correct
53	Correct	228 ms	9296 KB	Output is correct
54	Correct	246 ms	10320 KB	Output is correct
55	Correct	410 ms	28104 KB	Output is correct

Submission #921818

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