Submission #1724967


Source Code Expand

#include <cstdio>
#include <algorithm>
using namespace std;
#define fr first
#define se second
#define pr pair<int,int>
#define mp make_pair
#define N 300000
int n,m,i,j,mask,a[N],l[20][N],r[20][N],k,f[N<<1],g[N<<1],id;
pr b[N<<1];
bool c[N];
int main()
{
	scanf("%d%d",&n,&m);
	for (i=1;i<=n;i++) scanf("%d",&a[i]);int psz=0,jj=-1;
	for (j=m;j!=jj;jj=j,j>>=1){
		int lst=1;
		for (i=2;i<=n;i++) if (a[i]-a[i-1]>j){
			for (k=lst;k<i;k++) l[psz][k]=lst,r[psz][k]=i-1;
			lst=i;
		}
		for (k=lst;k<=n;k++) l[psz][k]=lst,r[psz][k]=n;
		psz++;
	}
	for (mask=0;mask<(1<<psz);mask++)
	for (i=0;i<psz;i++) if (!(mask&(1<<i))) f[mask|(1<<i)]=max(f[mask|(1<<i)],r[i][f[mask]+1]);
	for (mask=0;mask<(1<<psz);mask++) g[mask]=n+1;
	for (mask=0;mask<(1<<psz);mask++)
	for (i=0;i<psz;i++) if (!(mask&(1<<i))) g[mask|(1<<i)]=min(g[mask|(1<<i)],l[i][g[mask]-1]);
	for (mask=0;mask<(1<<psz);mask++) if (!(mask&1)) b[++id]=mp(g[mask],mask);
	for (i=1;i<=n;i++) b[++id]=mp(r[0][i]+1,i+(1<<psz));
	sort(b+1,b+id+1);int wtf=-1;
	for (i=1;i<=id;i++) if (b[i].se>(1<<psz)){
		b[i].se-=(1<<psz);
		if (wtf>=l[0][b[i].se]-1) c[b[i].se]=true;
	}else wtf=max(wtf,f[b[i].se^((1<<psz)-2)]);
	for (i=1;i<=n;i++) if (c[i]) puts("Possible");else puts("Impossible");
	return 0;
}

Submission Info

Submission Time
Task E - Camel and Oases
User vjudge1
Language C++14 (GCC 5.4.1)
Score 1000
Code Size 1247 Byte
Status AC
Exec Time 159 ms
Memory 59392 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:14:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
./Main.cpp:15:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for (i=1;i<=n;i++) scanf("%d",&a[i]);int psz=0,jj=-1;
                                      ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1000 / 1000
Status
AC × 3
AC × 70
Set Name Test Cases
Sample 00_example_01.txt, 00_example_02.txt, 00_example_03.txt
All 00_example_01.txt, 00_example_02.txt, 00_example_03.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, 65.txt, 66.txt, 67.txt
Case Name Status Exec Time Memory
00_example_01.txt AC 4 ms 14464 KB
00_example_02.txt AC 3 ms 14464 KB
00_example_03.txt AC 4 ms 22656 KB
01.txt AC 105 ms 57216 KB
02.txt AC 31 ms 47744 KB
03.txt AC 104 ms 57216 KB
04.txt AC 31 ms 47744 KB
05.txt AC 104 ms 57216 KB
06.txt AC 127 ms 57472 KB
07.txt AC 39 ms 48128 KB
08.txt AC 123 ms 57472 KB
09.txt AC 39 ms 48128 KB
10.txt AC 107 ms 57344 KB
11.txt AC 67 ms 50816 KB
12.txt AC 105 ms 57344 KB
13.txt AC 158 ms 59392 KB
14.txt AC 103 ms 57216 KB
15.txt AC 31 ms 47744 KB
16.txt AC 103 ms 57216 KB
17.txt AC 31 ms 47744 KB
18.txt AC 104 ms 57216 KB
19.txt AC 54 ms 50304 KB
20.txt AC 125 ms 57472 KB
21.txt AC 35 ms 48128 KB
22.txt AC 124 ms 57472 KB
23.txt AC 37 ms 48256 KB
24.txt AC 106 ms 57344 KB
25.txt AC 59 ms 50688 KB
26.txt AC 124 ms 57472 KB
27.txt AC 159 ms 59392 KB
28.txt AC 110 ms 57472 KB
29.txt AC 39 ms 48128 KB
30.txt AC 125 ms 57472 KB
31.txt AC 66 ms 50688 KB
32.txt AC 107 ms 57344 KB
33.txt AC 67 ms 50688 KB
34.txt AC 108 ms 57344 KB
35.txt AC 155 ms 59392 KB
36.txt AC 104 ms 57216 KB
37.txt AC 31 ms 47744 KB
38.txt AC 104 ms 57216 KB
39.txt AC 30 ms 47744 KB
40.txt AC 104 ms 57216 KB
41.txt AC 55 ms 50304 KB
42.txt AC 103 ms 57216 KB
43.txt AC 54 ms 50304 KB
44.txt AC 104 ms 57216 KB
45.txt AC 54 ms 50304 KB
46.txt AC 35 ms 48128 KB
47.txt AC 107 ms 57344 KB
48.txt AC 57 ms 50688 KB
49.txt AC 123 ms 57344 KB
50.txt AC 57 ms 50560 KB
51.txt AC 105 ms 57344 KB
52.txt AC 57 ms 50560 KB
53.txt AC 122 ms 57344 KB
54.txt AC 58 ms 50560 KB
55.txt AC 107 ms 57344 KB
56.txt AC 38 ms 48000 KB
57.txt AC 107 ms 57344 KB
58.txt AC 58 ms 50688 KB
59.txt AC 105 ms 57344 KB
60.txt AC 58 ms 50688 KB
61.txt AC 108 ms 57344 KB
62.txt AC 66 ms 50688 KB
63.txt AC 108 ms 57344 KB
64.txt AC 58 ms 50688 KB
65.txt AC 108 ms 57344 KB
66.txt AC 3 ms 14464 KB
67.txt AC 3 ms 14464 KB