답안 #37481 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
37481	2017-12-25T18:47:56 Z	Kerim	Bootfall (IZhO17_bootfall)	C++14	100 / 100	156 ms	3572 KB

bootfall

#include "bits/stdc++.h"
#define MAXN 100009
#define INF 1000000007
#define mp(x,y) make_pair(x,y)
#define all(v) v.begin(),v.end()
#define pb(x) push_back(x)
#define wr cout<<"----------------"<<endl;
#define ppb() pop_back()
#define tr(ii,c) for(__typeof((c).begin()) ii=(c).begin();ii!=(c).end();ii++)
#define ff first
#define ss second
#define my_little_dodge 46
#define debug(x)  cerr<< #x <<" = "<< x<<endl;
using namespace std;

typedef long long ll;
typedef pair<int,int> PII;
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N=505;
bitset<N*N>dp;
int arr[N],vis[N];
bool ans[N*N];
vector<int>s[N*4];
int n,sum,total;
void upd(int l,int r,int v,int nd,int x,int y){
	if(l>y or x>r)
		return;
	if(l<=x and y<=r){
		s[nd].pb(v);
		return;
	}	
	int mid=(x+y)>>1;
	upd(l,r,v,nd<<1,x,mid);
	upd(l,r,v,nd<<1|1,mid+1,y);
}
void solve(int nd,int x,int y,bitset<N*N>tmp){
	tr(it,s[nd])
		tmp=tmp|(tmp<<(*it));
	if(x==y){
		if(vis[arr[x]])
			return;
		vis[arr[x]]=1;	
		total-=arr[x];
		for(int j=0;j<=sum;j++){
			if(!ans[j])
				continue;
			if((j+total)&1){
				ans[j]=0;
				continue;
			}	
			if(!tmp[(j+total)/2]){
				ans[j]=0;
				continue;
			}
		}
		total+=arr[x];
		return;	
	}
	int mid=(x+y)>>1;
	solve(nd<<1,x,mid,tmp);
	solve(nd<<1|1,mid+1,y,tmp);
}
int main(){
    //~ freopen("file.in", "r", stdin);
    scanf("%d",&n);
    dp[0]=1;
    for(int i=1;i<=n;i++){
		scanf("%d",arr+i);
		dp=dp|(dp<<arr[i]);
		upd(1,i-1,arr[i],1,1,n);
		upd(i+1,n,arr[i],1,1,n);
		sum+=arr[i];
	}
	if(sum&1 or !dp[sum/2]){
		puts("0");
		return 0;
	}	
	for(int j=0;j<=sum;j++)
		ans[j]=1;	
	total=sum;	
	dp.reset();dp[0]=1;
	solve(1,1,n,dp);	
	int res=0;
	for(int j=0;j<=sum;j++)
		res+=ans[j];
	printf("%d\n",res);	
	for(int j=0;j<=sum;j++)
		if(ans[j])
			printf("%d ",j);
	puts("");	
	return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:66:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
bootfall.cpp:69:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",arr+i);
                    ^

Subtask #1
6.0 / 6.0

#	결과	메모리	Grader output
1	Correct	2692 KB	Output is correct
2	Correct	2820 KB	Output is correct
3	Correct	2352 KB	Output is correct
4	Correct	2696 KB	Output is correct
5	Correct	2940 KB	Output is correct
6	Correct	2816 KB	Output is correct
7	Correct	2816 KB	Output is correct
8	Correct	2940 KB	Output is correct
9	Correct	2940 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2692 KB	Output is correct
2	Correct	0 ms	2820 KB	Output is correct
3	Correct	0 ms	2352 KB	Output is correct
4	Correct	0 ms	2696 KB	Output is correct
5	Correct	0 ms	2940 KB	Output is correct
6	Correct	0 ms	2816 KB	Output is correct
7	Correct	0 ms	2816 KB	Output is correct
8	Correct	0 ms	2940 KB	Output is correct
9	Correct	0 ms	2940 KB	Output is correct
10	Correct	3 ms	3068 KB	Output is correct
11	Correct	3 ms	3064 KB	Output is correct
12	Correct	3 ms	3068 KB	Output is correct
13	Correct	3 ms	3068 KB	Output is correct
14	Correct	0 ms	3068 KB	Output is correct
15	Correct	3 ms	3064 KB	Output is correct
16	Correct	3 ms	3068 KB	Output is correct
17	Correct	3 ms	3068 KB	Output is correct
18	Correct	3 ms	3064 KB	Output is correct
19	Correct	3 ms	3068 KB	Output is correct
20	Correct	3 ms	3064 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2692 KB	Output is correct
2	Correct	0 ms	2820 KB	Output is correct
3	Correct	0 ms	2352 KB	Output is correct
4	Correct	0 ms	2696 KB	Output is correct
5	Correct	0 ms	2940 KB	Output is correct
6	Correct	0 ms	2816 KB	Output is correct
7	Correct	0 ms	2816 KB	Output is correct
8	Correct	0 ms	2940 KB	Output is correct
9	Correct	0 ms	2940 KB	Output is correct
10	Correct	3 ms	3068 KB	Output is correct
11	Correct	3 ms	3064 KB	Output is correct
12	Correct	3 ms	3068 KB	Output is correct
13	Correct	3 ms	3068 KB	Output is correct
14	Correct	0 ms	3068 KB	Output is correct
15	Correct	3 ms	3064 KB	Output is correct
16	Correct	3 ms	3068 KB	Output is correct
17	Correct	3 ms	3068 KB	Output is correct
18	Correct	3 ms	3064 KB	Output is correct
19	Correct	3 ms	3068 KB	Output is correct
20	Correct	3 ms	3064 KB	Output is correct
21	Correct	9 ms	3188 KB	Output is correct
22	Correct	9 ms	3320 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	13 ms	3320 KB	Output is correct
25	Correct	13 ms	3316 KB	Output is correct
26	Correct	13 ms	3320 KB	Output is correct
27	Correct	16 ms	3320 KB	Output is correct
28	Correct	16 ms	3316 KB	Output is correct
29	Correct	16 ms	3312 KB	Output is correct
30	Correct	13 ms	3316 KB	Output is correct
31	Correct	16 ms	3320 KB	Output is correct
32	Correct	16 ms	3316 KB	Output is correct
33	Correct	13 ms	3312 KB	Output is correct
34	Correct	16 ms	3320 KB	Output is correct
35	Correct	16 ms	3320 KB	Output is correct
36	Correct	16 ms	3316 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2692 KB	Output is correct
2	Correct	0 ms	2820 KB	Output is correct
3	Correct	0 ms	2352 KB	Output is correct
4	Correct	0 ms	2696 KB	Output is correct
5	Correct	0 ms	2940 KB	Output is correct
6	Correct	0 ms	2816 KB	Output is correct
7	Correct	0 ms	2816 KB	Output is correct
8	Correct	0 ms	2940 KB	Output is correct
9	Correct	0 ms	2940 KB	Output is correct
10	Correct	3 ms	3068 KB	Output is correct
11	Correct	3 ms	3064 KB	Output is correct
12	Correct	3 ms	3068 KB	Output is correct
13	Correct	3 ms	3068 KB	Output is correct
14	Correct	0 ms	3068 KB	Output is correct
15	Correct	3 ms	3064 KB	Output is correct
16	Correct	3 ms	3068 KB	Output is correct
17	Correct	3 ms	3068 KB	Output is correct
18	Correct	3 ms	3064 KB	Output is correct
19	Correct	3 ms	3068 KB	Output is correct
20	Correct	3 ms	3064 KB	Output is correct
21	Correct	9 ms	3188 KB	Output is correct
22	Correct	9 ms	3320 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	13 ms	3320 KB	Output is correct
25	Correct	13 ms	3316 KB	Output is correct
26	Correct	13 ms	3320 KB	Output is correct
27	Correct	16 ms	3320 KB	Output is correct
28	Correct	16 ms	3316 KB	Output is correct
29	Correct	16 ms	3312 KB	Output is correct
30	Correct	13 ms	3316 KB	Output is correct
31	Correct	16 ms	3320 KB	Output is correct
32	Correct	16 ms	3316 KB	Output is correct
33	Correct	13 ms	3312 KB	Output is correct
34	Correct	16 ms	3320 KB	Output is correct
35	Correct	16 ms	3320 KB	Output is correct
36	Correct	16 ms	3316 KB	Output is correct
37	Correct	39 ms	3440 KB	Output is correct
38	Correct	36 ms	3444 KB	Output is correct
39	Correct	43 ms	3440 KB	Output is correct
40	Correct	53 ms	3568 KB	Output is correct
41	Correct	49 ms	3564 KB	Output is correct
42	Correct	49 ms	3444 KB	Output is correct
43	Correct	43 ms	3444 KB	Output is correct
44	Correct	46 ms	3444 KB	Output is correct
45	Correct	46 ms	3440 KB	Output is correct
46	Correct	49 ms	3564 KB	Output is correct
47	Correct	46 ms	3440 KB	Output is correct
48	Correct	49 ms	3444 KB	Output is correct
49	Correct	43 ms	3440 KB	Output is correct
50	Correct	53 ms	3444 KB	Output is correct
51	Correct	3 ms	2352 KB	Output is correct
52	Correct	49 ms	3568 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2692 KB	Output is correct
2	Correct	0 ms	2820 KB	Output is correct
3	Correct	0 ms	2352 KB	Output is correct
4	Correct	0 ms	2696 KB	Output is correct
5	Correct	0 ms	2940 KB	Output is correct
6	Correct	0 ms	2816 KB	Output is correct
7	Correct	0 ms	2816 KB	Output is correct
8	Correct	0 ms	2940 KB	Output is correct
9	Correct	0 ms	2940 KB	Output is correct
10	Correct	3 ms	3068 KB	Output is correct
11	Correct	3 ms	3064 KB	Output is correct
12	Correct	3 ms	3068 KB	Output is correct
13	Correct	3 ms	3068 KB	Output is correct
14	Correct	0 ms	3068 KB	Output is correct
15	Correct	3 ms	3064 KB	Output is correct
16	Correct	3 ms	3068 KB	Output is correct
17	Correct	3 ms	3068 KB	Output is correct
18	Correct	3 ms	3064 KB	Output is correct
19	Correct	3 ms	3068 KB	Output is correct
20	Correct	3 ms	3064 KB	Output is correct
21	Correct	9 ms	3188 KB	Output is correct
22	Correct	9 ms	3320 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	13 ms	3320 KB	Output is correct
25	Correct	13 ms	3316 KB	Output is correct
26	Correct	13 ms	3320 KB	Output is correct
27	Correct	16 ms	3320 KB	Output is correct
28	Correct	16 ms	3316 KB	Output is correct
29	Correct	16 ms	3312 KB	Output is correct
30	Correct	13 ms	3316 KB	Output is correct
31	Correct	16 ms	3320 KB	Output is correct
32	Correct	16 ms	3316 KB	Output is correct
33	Correct	13 ms	3312 KB	Output is correct
34	Correct	16 ms	3320 KB	Output is correct
35	Correct	16 ms	3320 KB	Output is correct
36	Correct	16 ms	3316 KB	Output is correct
37	Correct	39 ms	3440 KB	Output is correct
38	Correct	36 ms	3444 KB	Output is correct
39	Correct	43 ms	3440 KB	Output is correct
40	Correct	53 ms	3568 KB	Output is correct
41	Correct	49 ms	3564 KB	Output is correct
42	Correct	49 ms	3444 KB	Output is correct
43	Correct	43 ms	3444 KB	Output is correct
44	Correct	46 ms	3444 KB	Output is correct
45	Correct	46 ms	3440 KB	Output is correct
46	Correct	49 ms	3564 KB	Output is correct
47	Correct	46 ms	3440 KB	Output is correct
48	Correct	49 ms	3444 KB	Output is correct
49	Correct	43 ms	3440 KB	Output is correct
50	Correct	53 ms	3444 KB	Output is correct
51	Correct	3 ms	2352 KB	Output is correct
52	Correct	49 ms	3568 KB	Output is correct
53	Correct	63 ms	3568 KB	Output is correct
54	Correct	76 ms	3568 KB	Output is correct
55	Correct	66 ms	3564 KB	Output is correct
56	Correct	66 ms	3568 KB	Output is correct
57	Correct	83 ms	3568 KB	Output is correct
58	Correct	83 ms	3568 KB	Output is correct
59	Correct	76 ms	3564 KB	Output is correct
60	Correct	9 ms	2352 KB	Output is correct
61	Correct	83 ms	3568 KB	Output is correct
62	Correct	66 ms	3568 KB	Output is correct
63	Correct	76 ms	3564 KB	Output is correct
64	Correct	69 ms	3564 KB	Output is correct
65	Correct	56 ms	3564 KB	Output is correct
66	Correct	63 ms	3572 KB	Output is correct

Subtask #6
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2692 KB	Output is correct
2	Correct	0 ms	2820 KB	Output is correct
3	Correct	0 ms	2352 KB	Output is correct
4	Correct	0 ms	2696 KB	Output is correct
5	Correct	0 ms	2940 KB	Output is correct
6	Correct	0 ms	2816 KB	Output is correct
7	Correct	0 ms	2816 KB	Output is correct
8	Correct	0 ms	2940 KB	Output is correct
9	Correct	0 ms	2940 KB	Output is correct
10	Correct	3 ms	3068 KB	Output is correct
11	Correct	3 ms	3064 KB	Output is correct
12	Correct	3 ms	3068 KB	Output is correct
13	Correct	3 ms	3068 KB	Output is correct
14	Correct	0 ms	3068 KB	Output is correct
15	Correct	3 ms	3064 KB	Output is correct
16	Correct	3 ms	3068 KB	Output is correct
17	Correct	3 ms	3068 KB	Output is correct
18	Correct	3 ms	3064 KB	Output is correct
19	Correct	3 ms	3068 KB	Output is correct
20	Correct	3 ms	3064 KB	Output is correct
21	Correct	9 ms	3188 KB	Output is correct
22	Correct	9 ms	3320 KB	Output is correct
23	Correct	6 ms	3188 KB	Output is correct
24	Correct	13 ms	3320 KB	Output is correct
25	Correct	13 ms	3316 KB	Output is correct
26	Correct	13 ms	3320 KB	Output is correct
27	Correct	16 ms	3320 KB	Output is correct
28	Correct	16 ms	3316 KB	Output is correct
29	Correct	16 ms	3312 KB	Output is correct
30	Correct	13 ms	3316 KB	Output is correct
31	Correct	16 ms	3320 KB	Output is correct
32	Correct	16 ms	3316 KB	Output is correct
33	Correct	13 ms	3312 KB	Output is correct
34	Correct	16 ms	3320 KB	Output is correct
35	Correct	16 ms	3320 KB	Output is correct
36	Correct	16 ms	3316 KB	Output is correct
37	Correct	39 ms	3440 KB	Output is correct
38	Correct	36 ms	3444 KB	Output is correct
39	Correct	43 ms	3440 KB	Output is correct
40	Correct	53 ms	3568 KB	Output is correct
41	Correct	49 ms	3564 KB	Output is correct
42	Correct	49 ms	3444 KB	Output is correct
43	Correct	43 ms	3444 KB	Output is correct
44	Correct	46 ms	3444 KB	Output is correct
45	Correct	46 ms	3440 KB	Output is correct
46	Correct	49 ms	3564 KB	Output is correct
47	Correct	46 ms	3440 KB	Output is correct
48	Correct	49 ms	3444 KB	Output is correct
49	Correct	43 ms	3440 KB	Output is correct
50	Correct	53 ms	3444 KB	Output is correct
51	Correct	3 ms	2352 KB	Output is correct
52	Correct	49 ms	3568 KB	Output is correct
53	Correct	63 ms	3568 KB	Output is correct
54	Correct	76 ms	3568 KB	Output is correct
55	Correct	66 ms	3564 KB	Output is correct
56	Correct	66 ms	3568 KB	Output is correct
57	Correct	83 ms	3568 KB	Output is correct
58	Correct	83 ms	3568 KB	Output is correct
59	Correct	76 ms	3564 KB	Output is correct
60	Correct	9 ms	2352 KB	Output is correct
61	Correct	83 ms	3568 KB	Output is correct
62	Correct	66 ms	3568 KB	Output is correct
63	Correct	76 ms	3564 KB	Output is correct
64	Correct	69 ms	3564 KB	Output is correct
65	Correct	56 ms	3564 KB	Output is correct
66	Correct	63 ms	3572 KB	Output is correct
67	Correct	99 ms	3564 KB	Output is correct
68	Correct	9 ms	2352 KB	Output is correct
69	Correct	126 ms	3568 KB	Output is correct
70	Correct	153 ms	3572 KB	Output is correct
71	Correct	153 ms	3564 KB	Output is correct
72	Correct	156 ms	3564 KB	Output is correct
73	Correct	153 ms	3568 KB	Output is correct
74	Correct	126 ms	3564 KB	Output is correct
75	Correct	139 ms	3568 KB	Output is correct
76	Correct	106 ms	3568 KB	Output is correct
77	Correct	123 ms	3568 KB	Output is correct

답안 #37481

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 7.0 / 7.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 21.0 / 21.0

Subtask #6 35.0 / 35.0

Subtask #1
6.0 / 6.0

Subtask #2
7.0 / 7.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
21.0 / 21.0

Subtask #6
35.0 / 35.0