답안 #754287

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
754287	2023-06-07T12:12:17 Z	Olympia	Bootfall (IZhO17_bootfall)	C++17	13 / 100	1000 ms	320 KB

bootfall

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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	-