oj.uz

Submission #888377

# Submission time Handle Problem Language Result Execution time Memory
888377 2023-12-17T08:23:58 Z pcc Bootfall (IZhO17_bootfall) C++14
44 / 100
 497 ms 180452 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>

const int mxn = 510;
const int C = mxn*(mxn-1)/2;
int mod = 998244353;
int arr[mxn];
int dp[C];
int del[mxn][C];
int n;
int sum = 0;

inline ll mad(int a,int b){
	a += b;
	return a>=mod?a-mod:a;
}
inline ll mub(int a,int b){
	return mad(a,mod-b);
}

inline bool check(int now){
	if(sum&1)return false;
	if(!dp[sum>>1])return false;
	int tsum = sum+now;
	for(int i = 1;i<=n;i++){
		tsum -= arr[i];
		if(tsum&1)return false;
		if(tsum/2<now)return false;
		if(!del[i][tsum>>1])return false;
		tsum += arr[i];
	}
	return true;
}

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n;
	dp[0] = 1;
	for(int i = 1;i<=n;i++){
		cin>>arr[i];
		sum += arr[i];
		for(int j = C-1;j>=arr[i];j--)dp[j] =mad(dp[j],dp[j-arr[i]]);
	}
	for(int i = 1;i<=n;i++){
		for(int j = 0;j<C;j++)del[i][j] = dp[j];
		for(int j = arr[i];j<C;j++)del[i][j] = mub(del[i][j],del[i][j-arr[i]]);
	}
	vector<int> ans;
	for(int i = 1;i<C;i++){
		if(check(i))ans.push_back(i);
	}

	vector<int> ans2;
	mod = 712271227;
	memset(dp,0,sizeof(dp));
	dp[0] = 1;
	for(int i = 1;i<=n;i++){
		for(int j = C-1;j>=arr[i];j--)dp[j] =mad(dp[j],dp[j-arr[i]]);
	}
	for(int i = 1;i<=n;i++){
		for(int j = 0;j<C;j++)del[i][j] = dp[j];
		for(int j = arr[i];j<C;j++)del[i][j] = mub(del[i][j],del[i][j-arr[i]]);
	}
	for(auto &i:ans){
		if(check(i))ans2.push_back(i);
	}
	swap(ans,ans2);
	ans2.clear();


	mod = 1e9+7;
	memset(dp,0,sizeof(dp));
	dp[0] = 1;
	for(int i = 1;i<=n;i++){
		for(int j = C-1;j>=arr[i];j--)dp[j] =mad(dp[j],dp[j-arr[i]]);
	}
	for(int i = 1;i<=n;i++){
		for(int j = 0;j<C;j++)del[i][j] = dp[j];
		for(int j = arr[i];j<C;j++)del[i][j] = mub(del[i][j],del[i][j-arr[i]]);
	}
	for(auto &i:ans){
		if(check(i))ans2.push_back(i);
	}
	swap(ans,ans2);
	ans2.clear();


	mod = 1e8+7;
	memset(dp,0,sizeof(dp));
	dp[0] = 1;
	for(int i = 1;i<=n;i++){
		for(int j = C-1;j>=arr[i];j--)dp[j] =mad(dp[j],dp[j-arr[i]]);
	}
	for(int i = 1;i<=n;i++){
		for(int j = 0;j<C;j++)del[i][j] = dp[j];
		for(int j = arr[i];j<C;j++)del[i][j] = mub(del[i][j],del[i][j-arr[i]]);
	}
	for(auto &i:ans){
		if(check(i))ans2.push_back(i);
	}
	swap(ans,ans2);
	ans2.clear();
	/*
	for(int i = 0;i<=10;i++)cout<<dp[i]<<' ';cout<<endl;
	cout<<sum<<endl;
	cout<<endl;
	for(int i = 1;i<=n;i++){
		for(int j = 0;j<=10;j++)cout<<del[i][j]<<' ';cout<<endl;
	}

   */

	cout<<ans.size()<<'\n';
	for(auto &i:ans)cout<<i<<' ';
	return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4952 KB Output is correct
2 Correct 7 ms 4956 KB Output is correct
3 Correct 5 ms 3020 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 13 ms 9176 KB Output is correct
6 Correct 9 ms 7004 KB Output is correct
7 Correct 7 ms 4956 KB Output is correct
8 Correct 13 ms 9168 KB Output is correct
9 Correct 11 ms 7004 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4952 KB Output is correct
2 Correct 7 ms 4956 KB Output is correct
3 Correct 5 ms 3020 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 13 ms 9176 KB Output is correct
6 Correct 9 ms 7004 KB Output is correct
7 Correct 7 ms 4956 KB Output is correct
8 Correct 13 ms 9168 KB Output is correct
9 Correct 11 ms 7004 KB Output is correct
10 Correct 32 ms 17368 KB Output is correct
11 Correct 38 ms 17240 KB Output is correct
12 Correct 33 ms 17244 KB Output is correct
13 Correct 29 ms 15192 KB Output is correct
14 Correct 31 ms 17240 KB Output is correct
15 Correct 36 ms 17244 KB Output is correct
16 Correct 39 ms 17244 KB Output is correct
17 Correct 21 ms 11100 KB Output is correct
18 Correct 27 ms 15196 KB Output is correct
19 Correct 29 ms 15192 KB Output is correct
20 Correct 31 ms 17244 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4952 KB Output is correct
2 Correct 7 ms 4956 KB Output is correct
3 Correct 5 ms 3020 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 13 ms 9176 KB Output is correct
6 Correct 9 ms 7004 KB Output is correct
7 Correct 7 ms 4956 KB Output is correct
8 Correct 13 ms 9168 KB Output is correct
9 Correct 11 ms 7004 KB Output is correct
10 Correct 32 ms 17368 KB Output is correct
11 Correct 38 ms 17240 KB Output is correct
12 Correct 33 ms 17244 KB Output is correct
13 Correct 29 ms 15192 KB Output is correct
14 Correct 31 ms 17240 KB Output is correct
15 Correct 36 ms 17244 KB Output is correct
16 Correct 39 ms 17244 KB Output is correct
17 Correct 21 ms 11100 KB Output is correct
18 Correct 27 ms 15196 KB Output is correct
19 Correct 29 ms 15192 KB Output is correct
20 Correct 31 ms 17244 KB Output is correct
21 Correct 74 ms 35852 KB Output is correct
22 Correct 83 ms 39772 KB Output is correct
23 Correct 60 ms 27484 KB Output is correct
24 Correct 108 ms 50004 KB Output is correct
25 Correct 103 ms 50012 KB Output is correct
26 Correct 110 ms 52276 KB Output is correct
27 Correct 128 ms 52316 KB Output is correct
28 Correct 110 ms 52060 KB Output is correct
29 Correct 109 ms 52060 KB Output is correct
30 Correct 106 ms 52052 KB Output is correct
31 Correct 113 ms 52440 KB Output is correct
32 Correct 118 ms 52280 KB Output is correct
33 Correct 109 ms 52240 KB Output is correct
34 Correct 108 ms 52216 KB Output is correct
35 Correct 113 ms 52248 KB Output is correct
36 Correct 115 ms 52052 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4952 KB Output is correct
2 Correct 7 ms 4956 KB Output is correct
3 Correct 5 ms 3020 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 13 ms 9176 KB Output is correct
6 Correct 9 ms 7004 KB Output is correct
7 Correct 7 ms 4956 KB Output is correct
8 Correct 13 ms 9168 KB Output is correct
9 Correct 11 ms 7004 KB Output is correct
10 Correct 32 ms 17368 KB Output is correct
11 Correct 38 ms 17240 KB Output is correct
12 Correct 33 ms 17244 KB Output is correct
13 Correct 29 ms 15192 KB Output is correct
14 Correct 31 ms 17240 KB Output is correct
15 Correct 36 ms 17244 KB Output is correct
16 Correct 39 ms 17244 KB Output is correct
17 Correct 21 ms 11100 KB Output is correct
18 Correct 27 ms 15196 KB Output is correct
19 Correct 29 ms 15192 KB Output is correct
20 Correct 31 ms 17244 KB Output is correct
21 Correct 74 ms 35852 KB Output is correct
22 Correct 83 ms 39772 KB Output is correct
23 Correct 60 ms 27484 KB Output is correct
24 Correct 108 ms 50004 KB Output is correct
25 Correct 103 ms 50012 KB Output is correct
26 Correct 110 ms 52276 KB Output is correct
27 Correct 128 ms 52316 KB Output is correct
28 Correct 110 ms 52060 KB Output is correct
29 Correct 109 ms 52060 KB Output is correct
30 Correct 106 ms 52052 KB Output is correct
31 Correct 113 ms 52440 KB Output is correct
32 Correct 118 ms 52280 KB Output is correct
33 Correct 109 ms 52240 KB Output is correct
34 Correct 108 ms 52216 KB Output is correct
35 Correct 113 ms 52248 KB Output is correct
36 Correct 115 ms 52052 KB Output is correct
37 Correct 238 ms 103688 KB Output is correct
38 Correct 232 ms 103700 KB Output is correct
39 Correct 259 ms 128000 KB Output is correct
40 Correct 316 ms 140548 KB Output is correct
41 Correct 286 ms 140484 KB Output is correct
42 Correct 308 ms 130388 KB Output is correct
43 Correct 318 ms 126460 KB Output is correct
44 Correct 312 ms 128744 KB Output is correct
45 Correct 319 ms 130532 KB Output is correct
46 Correct 283 ms 140480 KB Output is correct
47 Correct 296 ms 130500 KB Output is correct
48 Correct 303 ms 130512 KB Output is correct
49 Correct 277 ms 130236 KB Output is correct
50 Correct 305 ms 130640 KB Output is correct
51 Correct 268 ms 130240 KB Output is correct
52 Correct 341 ms 140844 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4952 KB Output is correct
2 Correct 7 ms 4956 KB Output is correct
3 Correct 5 ms 3020 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 13 ms 9176 KB Output is correct
6 Correct 9 ms 7004 KB Output is correct
7 Correct 7 ms 4956 KB Output is correct
8 Correct 13 ms 9168 KB Output is correct
9 Correct 11 ms 7004 KB Output is correct
10 Correct 32 ms 17368 KB Output is correct
11 Correct 38 ms 17240 KB Output is correct
12 Correct 33 ms 17244 KB Output is correct
13 Correct 29 ms 15192 KB Output is correct
14 Correct 31 ms 17240 KB Output is correct
15 Correct 36 ms 17244 KB Output is correct
16 Correct 39 ms 17244 KB Output is correct
17 Correct 21 ms 11100 KB Output is correct
18 Correct 27 ms 15196 KB Output is correct
19 Correct 29 ms 15192 KB Output is correct
20 Correct 31 ms 17244 KB Output is correct
21 Correct 74 ms 35852 KB Output is correct
22 Correct 83 ms 39772 KB Output is correct
23 Correct 60 ms 27484 KB Output is correct
24 Correct 108 ms 50004 KB Output is correct
25 Correct 103 ms 50012 KB Output is correct
26 Correct 110 ms 52276 KB Output is correct
27 Correct 128 ms 52316 KB Output is correct
28 Correct 110 ms 52060 KB Output is correct
29 Correct 109 ms 52060 KB Output is correct
30 Correct 106 ms 52052 KB Output is correct
31 Correct 113 ms 52440 KB Output is correct
32 Correct 118 ms 52280 KB Output is correct
33 Correct 109 ms 52240 KB Output is correct
34 Correct 108 ms 52216 KB Output is correct
35 Correct 113 ms 52248 KB Output is correct
36 Correct 115 ms 52052 KB Output is correct
37 Correct 238 ms 103688 KB Output is correct
38 Correct 232 ms 103700 KB Output is correct
39 Correct 259 ms 128000 KB Output is correct
40 Correct 316 ms 140548 KB Output is correct
41 Correct 286 ms 140484 KB Output is correct
42 Correct 308 ms 130388 KB Output is correct
43 Correct 318 ms 126460 KB Output is correct
44 Correct 312 ms 128744 KB Output is correct
45 Correct 319 ms 130532 KB Output is correct
46 Correct 283 ms 140480 KB Output is correct
47 Correct 296 ms 130500 KB Output is correct
48 Correct 303 ms 130512 KB Output is correct
49 Correct 277 ms 130236 KB Output is correct
50 Correct 305 ms 130640 KB Output is correct
51 Correct 268 ms 130240 KB Output is correct
52 Correct 341 ms 140844 KB Output is correct
53 Correct 368 ms 155220 KB Output is correct
54 Correct 447 ms 179796 KB Output is correct
55 Correct 491 ms 180252 KB Output is correct
56 Correct 385 ms 157380 KB Output is correct
57 Correct 497 ms 180452 KB Output is correct
58 Incorrect 446 ms 180052 KB Output isn't correct
59 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4952 KB Output is correct
2 Correct 7 ms 4956 KB Output is correct
3 Correct 5 ms 3020 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 13 ms 9176 KB Output is correct
6 Correct 9 ms 7004 KB Output is correct
7 Correct 7 ms 4956 KB Output is correct
8 Correct 13 ms 9168 KB Output is correct
9 Correct 11 ms 7004 KB Output is correct
10 Correct 32 ms 17368 KB Output is correct
11 Correct 38 ms 17240 KB Output is correct
12 Correct 33 ms 17244 KB Output is correct
13 Correct 29 ms 15192 KB Output is correct
14 Correct 31 ms 17240 KB Output is correct
15 Correct 36 ms 17244 KB Output is correct
16 Correct 39 ms 17244 KB Output is correct
17 Correct 21 ms 11100 KB Output is correct
18 Correct 27 ms 15196 KB Output is correct
19 Correct 29 ms 15192 KB Output is correct
20 Correct 31 ms 17244 KB Output is correct
21 Correct 74 ms 35852 KB Output is correct
22 Correct 83 ms 39772 KB Output is correct
23 Correct 60 ms 27484 KB Output is correct
24 Correct 108 ms 50004 KB Output is correct
25 Correct 103 ms 50012 KB Output is correct
26 Correct 110 ms 52276 KB Output is correct
27 Correct 128 ms 52316 KB Output is correct
28 Correct 110 ms 52060 KB Output is correct
29 Correct 109 ms 52060 KB Output is correct
30 Correct 106 ms 52052 KB Output is correct
31 Correct 113 ms 52440 KB Output is correct
32 Correct 118 ms 52280 KB Output is correct
33 Correct 109 ms 52240 KB Output is correct
34 Correct 108 ms 52216 KB Output is correct
35 Correct 113 ms 52248 KB Output is correct
36 Correct 115 ms 52052 KB Output is correct
37 Correct 238 ms 103688 KB Output is correct
38 Correct 232 ms 103700 KB Output is correct
39 Correct 259 ms 128000 KB Output is correct
40 Correct 316 ms 140548 KB Output is correct
41 Correct 286 ms 140484 KB Output is correct
42 Correct 308 ms 130388 KB Output is correct
43 Correct 318 ms 126460 KB Output is correct
44 Correct 312 ms 128744 KB Output is correct
45 Correct 319 ms 130532 KB Output is correct
46 Correct 283 ms 140480 KB Output is correct
47 Correct 296 ms 130500 KB Output is correct
48 Correct 303 ms 130512 KB Output is correct
49 Correct 277 ms 130236 KB Output is correct
50 Correct 305 ms 130640 KB Output is correct
51 Correct 268 ms 130240 KB Output is correct
52 Correct 341 ms 140844 KB Output is correct
53 Correct 368 ms 155220 KB Output is correct
54 Correct 447 ms 179796 KB Output is correct
55 Correct 491 ms 180252 KB Output is correct
56 Correct 385 ms 157380 KB Output is correct
57 Correct 497 ms 180452 KB Output is correct
58 Incorrect 446 ms 180052 KB Output isn't correct
59 Halted 0 ms 0 KB -