Submission #1072788

#	Time	Username	Problem	Language	Result	Execution time	Memory
1072788		thinknoexit	Fibonacci representations (CEOI18_fib)	C++17	5 / 100	105 ms	3252 KiB

fib

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int f[22];
map<int, int> mp;
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    f[1] = 1, f[2] = 2;
    for (int i = 3;i <= 20;i++) f[i] = f[i - 1] + f[i - 2];
    for (int i = 0;i < (1 << 20);i++) {
        int res = 0;
        for (int j = 1;j <= 20;j++) {
            if (i & (1 << (j - 1))) res += f[j];
        }
        mp[res]++;
    }
    int n;
    cin >> n;
    for (int i = 1, sum = 0;i <= n;i++) {
        int x;
        cin >> x;
        sum += f[x];
        cout << mp[sum] << '\n';
    }
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 20
• Subtask 3: 0 / 15
• Subtask 4: 0 / 10
• Subtask 5: 0 / 15
• Subtask 6: 0 / 35