oj.uz

Submission #566503

# Submission time Handle Problem Language Result Execution time Memory
566503 2022-05-22T11:14:20 Z 1zaid1 Bootfall (IZhO17_bootfall) C++14
13 / 100
 1000 ms 324 KB 
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
typedef long long ll;
#define int long long

#pragma GCC diagnostic ignored "-Wunused-result"
void setIO(string name = "") {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cout << fixed << setprecision(15);
    if (name.size()) {
    	freopen((name+".in").c_str(), "r", stdin);
        freopen((name+".out").c_str(), "w", stdout);
    }
}

const int M = 5e2+5, MOD = 1e6+7;
int sum;

bool check(vector<int>& v) {
    if (sum%2) return 0;

    vector<bool> can(2*sum+10, 0); can[0] = 1;
    for (int i = 0; i < v.size(); i++) {
        for (int k = sum/2; k >= v[i]; k--) {
            if (can[k-v[i]]) can[k] = 1;
        }
    } return can[sum/2];
}

signed main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    srand(time(0));
    // setIO("citystate");

    int n;
    cin >> n;

    vector<int> v(n);
    for (int&i:v) cin >> i;
    for (int i:v) sum += i;

    if (!check(v)) {
        cout << 0 << endl;
        return 0;
    }

    vector<int> ans;
    for (int i = 1; i <= sum; i++) {
        bool ok = 1;
        for (int j = 0; j < n; j++) {
            sum += i-v[j];
            swap(v[j], i);
            ok &= check(v);
            swap(v[j], i);
            sum -= i-v[j];
        }

        if (ok) ans.push_back(i);
    }

    cout << ans.size() << endl;
    for (int i:ans) cout << i << ' '; cout << endl;

    return 0;
}

/*
4
1 3 1 5
*/

Compilation message

bootfall.cpp: In function 'bool check(std::vector<long long int>&)':
bootfall.cpp:24:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i = 0; i < v.size(); i++) {
      |                     ~~^~~~~~~~~~
bootfall.cpp: In function 'int main()':
bootfall.cpp:63:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   63 |     for (int i:ans) cout << i << ' '; cout << endl;
      |     ^~~
bootfall.cpp:63:39: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   63 |     for (int i:ans) cout << i << ' '; cout << endl;
      |                                       ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory 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 3 ms 212 KB Output is correct
5 Correct 70 ms 320 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 165 ms 324 KB Output is correct
9 Correct 16 ms 316 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory 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 3 ms 212 KB Output is correct
5 Correct 70 ms 320 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 165 ms 324 KB Output is correct
9 Correct 16 ms 316 KB Output is correct
10 Correct 140 ms 292 KB Output is correct
11 Correct 37 ms 212 KB Output is correct
12 Correct 59 ms 296 KB Output is correct
13 Correct 28 ms 212 KB Output is correct
14 Correct 44 ms 320 KB Output is correct
15 Correct 24 ms 324 KB Output is correct
16 Correct 34 ms 320 KB Output is correct
17 Correct 8 ms 320 KB Output is correct
18 Correct 23 ms 324 KB Output is correct
19 Correct 19 ms 320 KB Output is correct
20 Correct 153 ms 296 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory 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 3 ms 212 KB Output is correct
5 Correct 70 ms 320 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 165 ms 324 KB Output is correct
9 Correct 16 ms 316 KB Output is correct
10 Correct 140 ms 292 KB Output is correct
11 Correct 37 ms 212 KB Output is correct
12 Correct 59 ms 296 KB Output is correct
13 Correct 28 ms 212 KB Output is correct
14 Correct 44 ms 320 KB Output is correct
15 Correct 24 ms 324 KB Output is correct
16 Correct 34 ms 320 KB Output is correct
17 Correct 8 ms 320 KB Output is correct
18 Correct 23 ms 324 KB Output is correct
19 Correct 19 ms 320 KB Output is correct
20 Correct 153 ms 296 KB Output is correct
21 Execution timed out 1083 ms 300 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory 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 3 ms 212 KB Output is correct
5 Correct 70 ms 320 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 165 ms 324 KB Output is correct
9 Correct 16 ms 316 KB Output is correct
10 Correct 140 ms 292 KB Output is correct
11 Correct 37 ms 212 KB Output is correct
12 Correct 59 ms 296 KB Output is correct
13 Correct 28 ms 212 KB Output is correct
14 Correct 44 ms 320 KB Output is correct
15 Correct 24 ms 324 KB Output is correct
16 Correct 34 ms 320 KB Output is correct
17 Correct 8 ms 320 KB Output is correct
18 Correct 23 ms 324 KB Output is correct
19 Correct 19 ms 320 KB Output is correct
20 Correct 153 ms 296 KB Output is correct
21 Execution timed out 1083 ms 300 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory 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 3 ms 212 KB Output is correct
5 Correct 70 ms 320 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 165 ms 324 KB Output is correct
9 Correct 16 ms 316 KB Output is correct
10 Correct 140 ms 292 KB Output is correct
11 Correct 37 ms 212 KB Output is correct
12 Correct 59 ms 296 KB Output is correct
13 Correct 28 ms 212 KB Output is correct
14 Correct 44 ms 320 KB Output is correct
15 Correct 24 ms 324 KB Output is correct
16 Correct 34 ms 320 KB Output is correct
17 Correct 8 ms 320 KB Output is correct
18 Correct 23 ms 324 KB Output is correct
19 Correct 19 ms 320 KB Output is correct
20 Correct 153 ms 296 KB Output is correct
21 Execution timed out 1083 ms 300 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory 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 3 ms 212 KB Output is correct
5 Correct 70 ms 320 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 165 ms 324 KB Output is correct
9 Correct 16 ms 316 KB Output is correct
10 Correct 140 ms 292 KB Output is correct
11 Correct 37 ms 212 KB Output is correct
12 Correct 59 ms 296 KB Output is correct
13 Correct 28 ms 212 KB Output is correct
14 Correct 44 ms 320 KB Output is correct
15 Correct 24 ms 324 KB Output is correct
16 Correct 34 ms 320 KB Output is correct
17 Correct 8 ms 320 KB Output is correct
18 Correct 23 ms 324 KB Output is correct
19 Correct 19 ms 320 KB Output is correct
20 Correct 153 ms 296 KB Output is correct
21 Execution timed out 1083 ms 300 KB Time limit exceeded
22 Halted 0 ms 0 KB -