oj.uz

Submission #77124

# Submission time Handle Problem Language Result Execution time Memory
77124 2018-09-22T13:49:16 Z zetapi Bootfall (IZhO17_bootfall) C++14
100 / 100
 754 ms 3088 KB 
#include "bits/stdc++.h"
using namespace std;

#define pb  push_back
#define mp  make_pair
#define ll  int
#define int int
#define itr iterator

typedef pair<ll,ll> pii;

const ll MAX=3e5+9;
const ll LIM=3e5;
const ll mod=1e9+7;

bitset<500*500+9> bs;

set<ll> candidate;

ll N,sum,arr[500*500+9],dp[500*500+9];

void add(ll X)
{
	sum+=X;
	for(int A=500*500;A>=X;A--)
	{
		dp[A]+=dp[A-X];
		if(dp[A]>=mod)
			dp[A]-=mod;
	}
	return ;
}

void remove(ll X)
{
	sum-=X;
	for(int A=X;A<=500*500;A++)
	{
		dp[A]-=dp[A-X];
		if(dp[A]<0)
			dp[A]+=mod;
	}
	return ;
}

signed main()
{
	scanf("%d",&N);
	dp[0]=1;
	for(int A=1;A<=N;A++)
	{
		scanf("%d",&arr[A]);
		add(arr[A]);
	}
	if(sum%2 or (!dp[sum/2]))
		return cout<<0,0;
	for(int A=1;A<=sum;A++)
		bs[A]=1;
	int mn=sum;
	for(int A=1;A<=N;A++)
	{
		remove(arr[A]);
		mn=min(mn,sum);
		for(int B=1;B<=sum;B++)
		{
			if((sum+B)%2 or (!dp[(sum+B)/2]))
				bs[B]=0;
		}
		add(arr[A]);
	}
	vector<int> res;
	for(int A=1;A<=mn;A++)
		if(bs[A])
			res.pb(A);
	cout<<res.size()<<"\n";
	for(auto A:res)
		cout<<A<<" ";
	return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:48:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&N);
  ~~~~~^~~~~~~~~
bootfall.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&arr[A]);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1272 KB Output is correct
2 Correct 8 ms 1404 KB Output is correct
3 Correct 4 ms 1404 KB Output is correct
4 Correct 9 ms 1468 KB Output is correct
5 Correct 13 ms 1516 KB Output is correct
6 Correct 9 ms 1516 KB Output is correct
7 Correct 8 ms 1516 KB Output is correct
8 Correct 13 ms 1568 KB Output is correct
9 Correct 14 ms 1568 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1272 KB Output is correct
2 Correct 8 ms 1404 KB Output is correct
3 Correct 4 ms 1404 KB Output is correct
4 Correct 9 ms 1468 KB Output is correct
5 Correct 13 ms 1516 KB Output is correct
6 Correct 9 ms 1516 KB Output is correct
7 Correct 8 ms 1516 KB Output is correct
8 Correct 13 ms 1568 KB Output is correct
9 Correct 14 ms 1568 KB Output is correct
10 Correct 28 ms 1568 KB Output is correct
11 Correct 32 ms 1568 KB Output is correct
12 Correct 29 ms 1568 KB Output is correct
13 Correct 27 ms 1632 KB Output is correct
14 Correct 27 ms 1632 KB Output is correct
15 Correct 31 ms 1632 KB Output is correct
16 Correct 34 ms 1632 KB Output is correct
17 Correct 19 ms 1632 KB Output is correct
18 Correct 32 ms 1632 KB Output is correct
19 Correct 26 ms 1632 KB Output is correct
20 Correct 28 ms 1632 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1272 KB Output is correct
2 Correct 8 ms 1404 KB Output is correct
3 Correct 4 ms 1404 KB Output is correct
4 Correct 9 ms 1468 KB Output is correct
5 Correct 13 ms 1516 KB Output is correct
6 Correct 9 ms 1516 KB Output is correct
7 Correct 8 ms 1516 KB Output is correct
8 Correct 13 ms 1568 KB Output is correct
9 Correct 14 ms 1568 KB Output is correct
10 Correct 28 ms 1568 KB Output is correct
11 Correct 32 ms 1568 KB Output is correct
12 Correct 29 ms 1568 KB Output is correct
13 Correct 27 ms 1632 KB Output is correct
14 Correct 27 ms 1632 KB Output is correct
15 Correct 31 ms 1632 KB Output is correct
16 Correct 34 ms 1632 KB Output is correct
17 Correct 19 ms 1632 KB Output is correct
18 Correct 32 ms 1632 KB Output is correct
19 Correct 26 ms 1632 KB Output is correct
20 Correct 28 ms 1632 KB Output is correct
21 Correct 64 ms 1632 KB Output is correct
22 Correct 68 ms 1632 KB Output is correct
23 Correct 52 ms 1632 KB Output is correct
24 Correct 88 ms 1660 KB Output is correct
25 Correct 91 ms 1676 KB Output is correct
26 Correct 97 ms 1676 KB Output is correct
27 Correct 89 ms 1676 KB Output is correct
28 Correct 91 ms 1716 KB Output is correct
29 Correct 90 ms 1716 KB Output is correct
30 Correct 93 ms 1716 KB Output is correct
31 Correct 112 ms 1716 KB Output is correct
32 Correct 115 ms 1724 KB Output is correct
33 Correct 90 ms 1724 KB Output is correct
34 Correct 92 ms 1724 KB Output is correct
35 Correct 91 ms 1724 KB Output is correct
36 Correct 98 ms 1724 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1272 KB Output is correct
2 Correct 8 ms 1404 KB Output is correct
3 Correct 4 ms 1404 KB Output is correct
4 Correct 9 ms 1468 KB Output is correct
5 Correct 13 ms 1516 KB Output is correct
6 Correct 9 ms 1516 KB Output is correct
7 Correct 8 ms 1516 KB Output is correct
8 Correct 13 ms 1568 KB Output is correct
9 Correct 14 ms 1568 KB Output is correct
10 Correct 28 ms 1568 KB Output is correct
11 Correct 32 ms 1568 KB Output is correct
12 Correct 29 ms 1568 KB Output is correct
13 Correct 27 ms 1632 KB Output is correct
14 Correct 27 ms 1632 KB Output is correct
15 Correct 31 ms 1632 KB Output is correct
16 Correct 34 ms 1632 KB Output is correct
17 Correct 19 ms 1632 KB Output is correct
18 Correct 32 ms 1632 KB Output is correct
19 Correct 26 ms 1632 KB Output is correct
20 Correct 28 ms 1632 KB Output is correct
21 Correct 64 ms 1632 KB Output is correct
22 Correct 68 ms 1632 KB Output is correct
23 Correct 52 ms 1632 KB Output is correct
24 Correct 88 ms 1660 KB Output is correct
25 Correct 91 ms 1676 KB Output is correct
26 Correct 97 ms 1676 KB Output is correct
27 Correct 89 ms 1676 KB Output is correct
28 Correct 91 ms 1716 KB Output is correct
29 Correct 90 ms 1716 KB Output is correct
30 Correct 93 ms 1716 KB Output is correct
31 Correct 112 ms 1716 KB Output is correct
32 Correct 115 ms 1724 KB Output is correct
33 Correct 90 ms 1724 KB Output is correct
34 Correct 92 ms 1724 KB Output is correct
35 Correct 91 ms 1724 KB Output is correct
36 Correct 98 ms 1724 KB Output is correct
37 Correct 191 ms 1852 KB Output is correct
38 Correct 183 ms 1852 KB Output is correct
39 Correct 255 ms 1852 KB Output is correct
40 Correct 304 ms 1852 KB Output is correct
41 Correct 284 ms 1852 KB Output is correct
42 Correct 237 ms 1852 KB Output is correct
43 Correct 252 ms 1952 KB Output is correct
44 Correct 247 ms 2108 KB Output is correct
45 Correct 268 ms 2108 KB Output is correct
46 Correct 288 ms 2108 KB Output is correct
47 Correct 237 ms 2108 KB Output is correct
48 Correct 260 ms 2108 KB Output is correct
49 Correct 253 ms 2108 KB Output is correct
50 Correct 243 ms 2108 KB Output is correct
51 Correct 78 ms 2108 KB Output is correct
52 Correct 292 ms 2108 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1272 KB Output is correct
2 Correct 8 ms 1404 KB Output is correct
3 Correct 4 ms 1404 KB Output is correct
4 Correct 9 ms 1468 KB Output is correct
5 Correct 13 ms 1516 KB Output is correct
6 Correct 9 ms 1516 KB Output is correct
7 Correct 8 ms 1516 KB Output is correct
8 Correct 13 ms 1568 KB Output is correct
9 Correct 14 ms 1568 KB Output is correct
10 Correct 28 ms 1568 KB Output is correct
11 Correct 32 ms 1568 KB Output is correct
12 Correct 29 ms 1568 KB Output is correct
13 Correct 27 ms 1632 KB Output is correct
14 Correct 27 ms 1632 KB Output is correct
15 Correct 31 ms 1632 KB Output is correct
16 Correct 34 ms 1632 KB Output is correct
17 Correct 19 ms 1632 KB Output is correct
18 Correct 32 ms 1632 KB Output is correct
19 Correct 26 ms 1632 KB Output is correct
20 Correct 28 ms 1632 KB Output is correct
21 Correct 64 ms 1632 KB Output is correct
22 Correct 68 ms 1632 KB Output is correct
23 Correct 52 ms 1632 KB Output is correct
24 Correct 88 ms 1660 KB Output is correct
25 Correct 91 ms 1676 KB Output is correct
26 Correct 97 ms 1676 KB Output is correct
27 Correct 89 ms 1676 KB Output is correct
28 Correct 91 ms 1716 KB Output is correct
29 Correct 90 ms 1716 KB Output is correct
30 Correct 93 ms 1716 KB Output is correct
31 Correct 112 ms 1716 KB Output is correct
32 Correct 115 ms 1724 KB Output is correct
33 Correct 90 ms 1724 KB Output is correct
34 Correct 92 ms 1724 KB Output is correct
35 Correct 91 ms 1724 KB Output is correct
36 Correct 98 ms 1724 KB Output is correct
37 Correct 191 ms 1852 KB Output is correct
38 Correct 183 ms 1852 KB Output is correct
39 Correct 255 ms 1852 KB Output is correct
40 Correct 304 ms 1852 KB Output is correct
41 Correct 284 ms 1852 KB Output is correct
42 Correct 237 ms 1852 KB Output is correct
43 Correct 252 ms 1952 KB Output is correct
44 Correct 247 ms 2108 KB Output is correct
45 Correct 268 ms 2108 KB Output is correct
46 Correct 288 ms 2108 KB Output is correct
47 Correct 237 ms 2108 KB Output is correct
48 Correct 260 ms 2108 KB Output is correct
49 Correct 253 ms 2108 KB Output is correct
50 Correct 243 ms 2108 KB Output is correct
51 Correct 78 ms 2108 KB Output is correct
52 Correct 292 ms 2108 KB Output is correct
53 Correct 294 ms 2108 KB Output is correct
54 Correct 381 ms 2108 KB Output is correct
55 Correct 392 ms 2232 KB Output is correct
56 Correct 336 ms 2232 KB Output is correct
57 Correct 382 ms 2424 KB Output is correct
58 Correct 367 ms 2424 KB Output is correct
59 Correct 359 ms 2424 KB Output is correct
60 Correct 114 ms 2424 KB Output is correct
61 Correct 410 ms 2424 KB Output is correct
62 Correct 340 ms 2424 KB Output is correct
63 Correct 372 ms 2424 KB Output is correct
64 Correct 356 ms 2424 KB Output is correct
65 Correct 332 ms 2424 KB Output is correct
66 Correct 321 ms 2424 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1272 KB Output is correct
2 Correct 8 ms 1404 KB Output is correct
3 Correct 4 ms 1404 KB Output is correct
4 Correct 9 ms 1468 KB Output is correct
5 Correct 13 ms 1516 KB Output is correct
6 Correct 9 ms 1516 KB Output is correct
7 Correct 8 ms 1516 KB Output is correct
8 Correct 13 ms 1568 KB Output is correct
9 Correct 14 ms 1568 KB Output is correct
10 Correct 28 ms 1568 KB Output is correct
11 Correct 32 ms 1568 KB Output is correct
12 Correct 29 ms 1568 KB Output is correct
13 Correct 27 ms 1632 KB Output is correct
14 Correct 27 ms 1632 KB Output is correct
15 Correct 31 ms 1632 KB Output is correct
16 Correct 34 ms 1632 KB Output is correct
17 Correct 19 ms 1632 KB Output is correct
18 Correct 32 ms 1632 KB Output is correct
19 Correct 26 ms 1632 KB Output is correct
20 Correct 28 ms 1632 KB Output is correct
21 Correct 64 ms 1632 KB Output is correct
22 Correct 68 ms 1632 KB Output is correct
23 Correct 52 ms 1632 KB Output is correct
24 Correct 88 ms 1660 KB Output is correct
25 Correct 91 ms 1676 KB Output is correct
26 Correct 97 ms 1676 KB Output is correct
27 Correct 89 ms 1676 KB Output is correct
28 Correct 91 ms 1716 KB Output is correct
29 Correct 90 ms 1716 KB Output is correct
30 Correct 93 ms 1716 KB Output is correct
31 Correct 112 ms 1716 KB Output is correct
32 Correct 115 ms 1724 KB Output is correct
33 Correct 90 ms 1724 KB Output is correct
34 Correct 92 ms 1724 KB Output is correct
35 Correct 91 ms 1724 KB Output is correct
36 Correct 98 ms 1724 KB Output is correct
37 Correct 191 ms 1852 KB Output is correct
38 Correct 183 ms 1852 KB Output is correct
39 Correct 255 ms 1852 KB Output is correct
40 Correct 304 ms 1852 KB Output is correct
41 Correct 284 ms 1852 KB Output is correct
42 Correct 237 ms 1852 KB Output is correct
43 Correct 252 ms 1952 KB Output is correct
44 Correct 247 ms 2108 KB Output is correct
45 Correct 268 ms 2108 KB Output is correct
46 Correct 288 ms 2108 KB Output is correct
47 Correct 237 ms 2108 KB Output is correct
48 Correct 260 ms 2108 KB Output is correct
49 Correct 253 ms 2108 KB Output is correct
50 Correct 243 ms 2108 KB Output is correct
51 Correct 78 ms 2108 KB Output is correct
52 Correct 292 ms 2108 KB Output is correct
53 Correct 294 ms 2108 KB Output is correct
54 Correct 381 ms 2108 KB Output is correct
55 Correct 392 ms 2232 KB Output is correct
56 Correct 336 ms 2232 KB Output is correct
57 Correct 382 ms 2424 KB Output is correct
58 Correct 367 ms 2424 KB Output is correct
59 Correct 359 ms 2424 KB Output is correct
60 Correct 114 ms 2424 KB Output is correct
61 Correct 410 ms 2424 KB Output is correct
62 Correct 340 ms 2424 KB Output is correct
63 Correct 372 ms 2424 KB Output is correct
64 Correct 356 ms 2424 KB Output is correct
65 Correct 332 ms 2424 KB Output is correct
66 Correct 321 ms 2424 KB Output is correct
67 Correct 509 ms 2424 KB Output is correct
68 Correct 145 ms 2424 KB Output is correct
69 Correct 649 ms 2820 KB Output is correct
70 Correct 579 ms 2820 KB Output is correct
71 Correct 620 ms 2820 KB Output is correct
72 Correct 622 ms 2820 KB Output is correct
73 Correct 566 ms 2820 KB Output is correct
74 Correct 754 ms 2980 KB Output is correct
75 Correct 657 ms 2980 KB Output is correct
76 Correct 704 ms 3088 KB Output is correct
77 Correct 690 ms 3088 KB Output is correct