oj.uz

Submission #380037

# Submission time Handle Problem Language Result Execution time Memory
380037 2021-03-20T06:38:01 Z Kalashnikov Bootfall (IZhO17_bootfall) C++17
100 / 100
 146 ms 3584 KB 
#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 500+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 , P = 6547;
 
int a[N] , u[N] , ans[N*N];
int dp[N*N]; 
 
void solve() {
	int n;
	cin >> n;
	ll sum = 0;
	int cnt[2];
	cnt[0]=cnt[1]=0;
	for(int i = 1; i <= n; i ++) {
		cin >> a[i];
		sum += a[i];
		cnt[a[i]%2] = 1;
	}
	if(sum % 2 || cnt[0] == cnt[1]) {
		cout << "0";
		return;
	}
	dp[0] = 1;
	for(int i = 1; i <= n; i ++) {
		for(int j = sum; j >= 0; j --) {
			if(j + a[i] <= sum) {
				dp[j+a[i]] += dp[j];
			}
		}
	}
	if(!dp[sum/2]) {
		cout << "0";
		return;
	}

	int f = 0;
	for(int i = 1; i <= n; i ++) {
		if(u[a[i]]) continue;
		u[a[i]] = 1;
		f ++;
		
		for(int j = 0; j < sum; j ++) {
			if(j + a[i] <= sum) {
				dp[j+a[i]] -= dp[j];
			}
		}
		sum -= a[i];
//		cout << a[i] << ": \n";
		for(int i = 2 - cnt[1]; i <= sum; i += 2) {
			if(dp[(sum+i) / 2]) {
	//			cout << "    " << i << '\n';
				ans[i] ++;
			}
		}
		
		sum += a[i];
		for(int j = sum; j >= 0; j --) {
			if(j + a[i] <= sum) {
				dp[j+a[i]] += dp[j];
			}
		}
	}
	
	vector<int> v;
	for(int i = 1; i < N*N; i ++) {
		if(ans[i] == f) {
			v.push_back(i);
		}
	}
	
	cout << v.size() << '\n';
	for(auto to: v) {
		cout << to << ' ';
	}
	
}
/*
1 2 1 2   2
 
 
*/
main() {
    ios;
    int tt = 1;
    //cin >> tt;
    while(tt --) {
        solve();
    }
    return 0;
}

Compilation message

bootfall.cpp:92:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   92 | main() {
      |      ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 364 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 2 ms 364 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 364 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 2 ms 364 KB Output is correct
21 Correct 2 ms 364 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 3 ms 364 KB Output is correct
24 Correct 3 ms 364 KB Output is correct
25 Correct 3 ms 492 KB Output is correct
26 Correct 3 ms 492 KB Output is correct
27 Correct 3 ms 492 KB Output is correct
28 Correct 3 ms 492 KB Output is correct
29 Correct 3 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 3 ms 492 KB Output is correct
32 Correct 3 ms 492 KB Output is correct
33 Correct 3 ms 364 KB Output is correct
34 Correct 3 ms 364 KB Output is correct
35 Correct 3 ms 364 KB Output is correct
36 Correct 3 ms 364 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 364 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 2 ms 364 KB Output is correct
21 Correct 2 ms 364 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 3 ms 364 KB Output is correct
24 Correct 3 ms 364 KB Output is correct
25 Correct 3 ms 492 KB Output is correct
26 Correct 3 ms 492 KB Output is correct
27 Correct 3 ms 492 KB Output is correct
28 Correct 3 ms 492 KB Output is correct
29 Correct 3 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 3 ms 492 KB Output is correct
32 Correct 3 ms 492 KB Output is correct
33 Correct 3 ms 364 KB Output is correct
34 Correct 3 ms 364 KB Output is correct
35 Correct 3 ms 364 KB Output is correct
36 Correct 3 ms 364 KB Output is correct
37 Correct 9 ms 620 KB Output is correct
38 Correct 9 ms 620 KB Output is correct
39 Correct 18 ms 876 KB Output is correct
40 Correct 26 ms 876 KB Output is correct
41 Correct 21 ms 876 KB Output is correct
42 Correct 18 ms 748 KB Output is correct
43 Correct 21 ms 1132 KB Output is correct
44 Correct 22 ms 1132 KB Output is correct
45 Correct 22 ms 1132 KB Output is correct
46 Correct 22 ms 748 KB Output is correct
47 Correct 19 ms 876 KB Output is correct
48 Correct 19 ms 1132 KB Output is correct
49 Correct 18 ms 876 KB Output is correct
50 Correct 20 ms 876 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 28 ms 1388 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 364 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 2 ms 364 KB Output is correct
21 Correct 2 ms 364 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 3 ms 364 KB Output is correct
24 Correct 3 ms 364 KB Output is correct
25 Correct 3 ms 492 KB Output is correct
26 Correct 3 ms 492 KB Output is correct
27 Correct 3 ms 492 KB Output is correct
28 Correct 3 ms 492 KB Output is correct
29 Correct 3 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 3 ms 492 KB Output is correct
32 Correct 3 ms 492 KB Output is correct
33 Correct 3 ms 364 KB Output is correct
34 Correct 3 ms 364 KB Output is correct
35 Correct 3 ms 364 KB Output is correct
36 Correct 3 ms 364 KB Output is correct
37 Correct 9 ms 620 KB Output is correct
38 Correct 9 ms 620 KB Output is correct
39 Correct 18 ms 876 KB Output is correct
40 Correct 26 ms 876 KB Output is correct
41 Correct 21 ms 876 KB Output is correct
42 Correct 18 ms 748 KB Output is correct
43 Correct 21 ms 1132 KB Output is correct
44 Correct 22 ms 1132 KB Output is correct
45 Correct 22 ms 1132 KB Output is correct
46 Correct 22 ms 748 KB Output is correct
47 Correct 19 ms 876 KB Output is correct
48 Correct 19 ms 1132 KB Output is correct
49 Correct 18 ms 876 KB Output is correct
50 Correct 20 ms 876 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 28 ms 1388 KB Output is correct
53 Correct 29 ms 1004 KB Output is correct
54 Correct 38 ms 1132 KB Output is correct
55 Correct 48 ms 1904 KB Output is correct
56 Correct 36 ms 1132 KB Output is correct
57 Correct 51 ms 1904 KB Output is correct
58 Correct 49 ms 1260 KB Output is correct
59 Correct 47 ms 1392 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 52 ms 1520 KB Output is correct
62 Correct 47 ms 1648 KB Output is correct
63 Correct 48 ms 1776 KB Output is correct
64 Correct 45 ms 1904 KB Output is correct
65 Correct 20 ms 748 KB Output is correct
66 Correct 23 ms 876 KB Output is correct

Subtask #6
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 2 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 364 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 2 ms 364 KB Output is correct
21 Correct 2 ms 364 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 3 ms 364 KB Output is correct
24 Correct 3 ms 364 KB Output is correct
25 Correct 3 ms 492 KB Output is correct
26 Correct 3 ms 492 KB Output is correct
27 Correct 3 ms 492 KB Output is correct
28 Correct 3 ms 492 KB Output is correct
29 Correct 3 ms 492 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 3 ms 492 KB Output is correct
32 Correct 3 ms 492 KB Output is correct
33 Correct 3 ms 364 KB Output is correct
34 Correct 3 ms 364 KB Output is correct
35 Correct 3 ms 364 KB Output is correct
36 Correct 3 ms 364 KB Output is correct
37 Correct 9 ms 620 KB Output is correct
38 Correct 9 ms 620 KB Output is correct
39 Correct 18 ms 876 KB Output is correct
40 Correct 26 ms 876 KB Output is correct
41 Correct 21 ms 876 KB Output is correct
42 Correct 18 ms 748 KB Output is correct
43 Correct 21 ms 1132 KB Output is correct
44 Correct 22 ms 1132 KB Output is correct
45 Correct 22 ms 1132 KB Output is correct
46 Correct 22 ms 748 KB Output is correct
47 Correct 19 ms 876 KB Output is correct
48 Correct 19 ms 1132 KB Output is correct
49 Correct 18 ms 876 KB Output is correct
50 Correct 20 ms 876 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 28 ms 1388 KB Output is correct
53 Correct 29 ms 1004 KB Output is correct
54 Correct 38 ms 1132 KB Output is correct
55 Correct 48 ms 1904 KB Output is correct
56 Correct 36 ms 1132 KB Output is correct
57 Correct 51 ms 1904 KB Output is correct
58 Correct 49 ms 1260 KB Output is correct
59 Correct 47 ms 1392 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 52 ms 1520 KB Output is correct
62 Correct 47 ms 1648 KB Output is correct
63 Correct 48 ms 1776 KB Output is correct
64 Correct 45 ms 1904 KB Output is correct
65 Correct 20 ms 748 KB Output is correct
66 Correct 23 ms 876 KB Output is correct
67 Correct 71 ms 1648 KB Output is correct
68 Correct 61 ms 880 KB Output is correct
69 Correct 125 ms 3180 KB Output is correct
70 Correct 138 ms 2160 KB Output is correct
71 Correct 137 ms 2160 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 1 ms 364 KB Output is correct
74 Correct 144 ms 3436 KB Output is correct
75 Correct 146 ms 2796 KB Output is correct
76 Correct 137 ms 3564 KB Output is correct
77 Correct 139 ms 3584 KB Output is correct