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Submission #754287

# Submission time Handle Problem Language Result Execution time Memory
754287 2023-06-07T12:12:17 Z Olympia Bootfall (IZhO17_bootfall) C++17
13 / 100
 1000 ms 320 KB 
#include <vector>
#include <iostream>
#include <cassert>
#include <cmath>
#include <map>
#include <bitset>
#include <set>
#include <stack>
using namespace std;
bool okay (vector<int> v) {
	int sum = 0;
	for (int i: v) {
		sum += i;
	}
	if (sum % 2 == 1) {
		return false;
	}
	bitset<5000> bs;
	bs[0] = true;
	for (int i: v) {
		bs |= (bs << i);
	}
	return bs[sum/2];
}
vector<int> remove (vector<int> v, int ind) {
	vector<int> a;
	for (int i = 0; i < v.size(); i++) {
		if (i != ind) {
			a.push_back(v[i]);
		}
	}
	return a;
}
int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    vector<int> v(n);
    for (int i = 0; i < n; i++) {
    	cin >> v[i];
    }
    bitset<5000> bs;
    bs[0] = true;
    for (int i = 0; i < n - 1; i++) {
    	bs |= (bs >> v[i]) | (bs << v[i]);
    }
    vector<int> ans;
    for (int i = 0; i <= 5000; i++) {
    	if (!bs[i]) {
    		continue;
    	}
    	v.push_back(i);
    	bool fine = true;
    	for (int j = 0; j < v.size(); j++) {
    		if (!okay(remove(v, j))) {
    			fine = false;
    			break;
    		}
    	}
    	if (fine) {
    		ans.push_back(i);
    	}
    	v.pop_back();
    }
    cout << ans.size() << endl;
    for (int i: ans) {
    	cout << i << ' ';
    }
    cout << endl;
}

Compilation message

bootfall.cpp: In function 'std::vector<int> remove(std::vector<int>, int)':
bootfall.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for (int i = 0; i < v.size(); i++) {
      |                  ~~^~~~~~~~~~
bootfall.cpp: In function 'int main()':
bootfall.cpp:55:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |      for (int j = 0; j < v.size(); j++) {
      |                      ~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 8 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 9 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 8 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 9 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 212 KB Output is correct
11 Correct 32 ms 320 KB Output is correct
12 Correct 3 ms 212 KB Output is correct
13 Correct 3 ms 212 KB Output is correct
14 Correct 28 ms 316 KB Output is correct
15 Correct 27 ms 212 KB Output is correct
16 Correct 27 ms 212 KB Output is correct
17 Correct 12 ms 212 KB Output is correct
18 Correct 17 ms 316 KB Output is correct
19 Correct 15 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 8 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 9 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 212 KB Output is correct
11 Correct 32 ms 320 KB Output is correct
12 Correct 3 ms 212 KB Output is correct
13 Correct 3 ms 212 KB Output is correct
14 Correct 28 ms 316 KB Output is correct
15 Correct 27 ms 212 KB Output is correct
16 Correct 27 ms 212 KB Output is correct
17 Correct 12 ms 212 KB Output is correct
18 Correct 17 ms 316 KB Output is correct
19 Correct 15 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Execution timed out 1068 ms 304 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 8 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 9 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 212 KB Output is correct
11 Correct 32 ms 320 KB Output is correct
12 Correct 3 ms 212 KB Output is correct
13 Correct 3 ms 212 KB Output is correct
14 Correct 28 ms 316 KB Output is correct
15 Correct 27 ms 212 KB Output is correct
16 Correct 27 ms 212 KB Output is correct
17 Correct 12 ms 212 KB Output is correct
18 Correct 17 ms 316 KB Output is correct
19 Correct 15 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Execution timed out 1068 ms 304 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 8 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 9 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 212 KB Output is correct
11 Correct 32 ms 320 KB Output is correct
12 Correct 3 ms 212 KB Output is correct
13 Correct 3 ms 212 KB Output is correct
14 Correct 28 ms 316 KB Output is correct
15 Correct 27 ms 212 KB Output is correct
16 Correct 27 ms 212 KB Output is correct
17 Correct 12 ms 212 KB Output is correct
18 Correct 17 ms 316 KB Output is correct
19 Correct 15 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Execution timed out 1068 ms 304 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 8 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 9 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 4 ms 212 KB Output is correct
11 Correct 32 ms 320 KB Output is correct
12 Correct 3 ms 212 KB Output is correct
13 Correct 3 ms 212 KB Output is correct
14 Correct 28 ms 316 KB Output is correct
15 Correct 27 ms 212 KB Output is correct
16 Correct 27 ms 212 KB Output is correct
17 Correct 12 ms 212 KB Output is correct
18 Correct 17 ms 316 KB Output is correct
19 Correct 15 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Execution timed out 1068 ms 304 KB Time limit exceeded
22 Halted 0 ms 0 KB -