답안 #754286

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
754286	2023-06-07T12:11:42 Z	Olympia	Bootfall (IZhO17_bootfall)	C++17	13 / 100	1000 ms	428 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 <= 10000; 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	1 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	260 KB	Output is correct
5	Correct	10 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	10 ms	212 KB	Output is correct
9	Correct	2 ms	340 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	260 KB	Output is correct
5	Correct	10 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	10 ms	212 KB	Output is correct
9	Correct	2 ms	340 KB	Output is correct
10	Correct	4 ms	212 KB	Output is correct
11	Correct	39 ms	292 KB	Output is correct
12	Correct	4 ms	212 KB	Output is correct
13	Correct	3 ms	212 KB	Output is correct
14	Correct	29 ms	212 KB	Output is correct
15	Correct	22 ms	316 KB	Output is correct
16	Correct	26 ms	212 KB	Output is correct
17	Correct	8 ms	212 KB	Output is correct
18	Correct	18 ms	212 KB	Output is correct
19	Correct	17 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	1 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	260 KB	Output is correct
5	Correct	10 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	10 ms	212 KB	Output is correct
9	Correct	2 ms	340 KB	Output is correct
10	Correct	4 ms	212 KB	Output is correct
11	Correct	39 ms	292 KB	Output is correct
12	Correct	4 ms	212 KB	Output is correct
13	Correct	3 ms	212 KB	Output is correct
14	Correct	29 ms	212 KB	Output is correct
15	Correct	22 ms	316 KB	Output is correct
16	Correct	26 ms	212 KB	Output is correct
17	Correct	8 ms	212 KB	Output is correct
18	Correct	18 ms	212 KB	Output is correct
19	Correct	17 ms	212 KB	Output is correct
20	Correct	4 ms	212 KB	Output is correct
21	Execution timed out	1078 ms	428 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #4

0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	260 KB	Output is correct
5	Correct	10 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	10 ms	212 KB	Output is correct
9	Correct	2 ms	340 KB	Output is correct
10	Correct	4 ms	212 KB	Output is correct
11	Correct	39 ms	292 KB	Output is correct
12	Correct	4 ms	212 KB	Output is correct
13	Correct	3 ms	212 KB	Output is correct
14	Correct	29 ms	212 KB	Output is correct
15	Correct	22 ms	316 KB	Output is correct
16	Correct	26 ms	212 KB	Output is correct
17	Correct	8 ms	212 KB	Output is correct
18	Correct	18 ms	212 KB	Output is correct
19	Correct	17 ms	212 KB	Output is correct
20	Correct	4 ms	212 KB	Output is correct
21	Execution timed out	1078 ms	428 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #5

0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	260 KB	Output is correct
5	Correct	10 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	10 ms	212 KB	Output is correct
9	Correct	2 ms	340 KB	Output is correct
10	Correct	4 ms	212 KB	Output is correct
11	Correct	39 ms	292 KB	Output is correct
12	Correct	4 ms	212 KB	Output is correct
13	Correct	3 ms	212 KB	Output is correct
14	Correct	29 ms	212 KB	Output is correct
15	Correct	22 ms	316 KB	Output is correct
16	Correct	26 ms	212 KB	Output is correct
17	Correct	8 ms	212 KB	Output is correct
18	Correct	18 ms	212 KB	Output is correct
19	Correct	17 ms	212 KB	Output is correct
20	Correct	4 ms	212 KB	Output is correct
21	Execution timed out	1078 ms	428 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #6

0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	260 KB	Output is correct
5	Correct	10 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	10 ms	212 KB	Output is correct
9	Correct	2 ms	340 KB	Output is correct
10	Correct	4 ms	212 KB	Output is correct
11	Correct	39 ms	292 KB	Output is correct
12	Correct	4 ms	212 KB	Output is correct
13	Correct	3 ms	212 KB	Output is correct
14	Correct	29 ms	212 KB	Output is correct
15	Correct	22 ms	316 KB	Output is correct
16	Correct	26 ms	212 KB	Output is correct
17	Correct	8 ms	212 KB	Output is correct
18	Correct	18 ms	212 KB	Output is correct
19	Correct	17 ms	212 KB	Output is correct
20	Correct	4 ms	212 KB	Output is correct
21	Execution timed out	1078 ms	428 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-