Submission #910245

#	Time	Username	Problem	Language	Result	Execution time	Memory
910245		vjudge1	Bootfall (IZhO17_bootfall)	C++17	6 / 100	127 ms	596 KiB

bootfall

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")

#include <bits/stdc++.h>
 
#define int long long 
#define pb push_back
#define ui unsigned int
#define ld long double
#define pl pair<long long int,  long long int>
#define boost ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ff first    
#define ss second
#define sz size()
#define all(x) x.begin(), x.end()
 
using namespace std;
 
const int maxn = 3e5 + 11;
const int inf = 1e18 + 1;
const int mod = 1e9 + 7;
// const int mod = 998244353;
const int dx[] = {-1, 0, 0, 1, -1, -1, 1, 1};
const int dy[] = {0, -1, 1 , 0, -1, 1, -1, 1};
const double eps = 1e-10;

void solve() {
    int n;

    cin >> n;

    int a[n + 1];

    for(int i = 0; i < n; i++) {
        cin >> a[ i ];
    }
    n++;
    vector<int> v;

    for(int x = 1; x <= 1000; x++) {
        a[n - 1] = x;
        bool bl = true;

        for(int j = 0; j < n; j++) {
            bool fl = false;
            for(int mask = 0; mask < (1 << n); mask++) {
                int cnt1 = 0, cnt2 = 0;
                for(int i = 0; i < n; i++) {
                    if(i == j) {
                        continue;
                    }
                    if(mask & (1 << i)) {
                        cnt1 += a[ i ];
                    }
                    else {
                        cnt2 += a[ i ];
                    }
                }
                if(cnt1 == cnt2) {
                    fl = true;
                    break;
                }
            }
            if(!fl) {
                bl = false;
                break;
            }
        }
        if(bl) {
            v.pb( x );
        }
    }
    cout << v.sz << '\n';

    for(auto it : v) {
        cout << it << ' ';
    }
}
    
signed main() {
    // freopen("sum.in", "r", stdin); 
    // freopen("sum.out", "w", stdout);
 
    boost;      

    int tt = 1;

    // cin >> tt;

    for(int i = 1; i <= tt; i++) {
        // cout << "Case " << i << ":\n";
        solve();    
    }           
}

• Subtask 1: 6 / 6
• Subtask 2: 0 / 7
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 21
• Subtask 6: 0 / 35