QOJ.ac

QOJ

ID提交记录ID题目HackerOwner结果提交时间测评时间
#673#432733#8795. Mysterious Sequenceucup-team3535ucup-team004Failed.2024-06-10 20:04:212024-06-10 20:04:22

详细

Extra Test:

Accepted
time: 0ms
memory: 3924kb

input:

0.99 0.99 10 1 1

output:

1.0000000000
-0.5847052569
0.4111417957
-0.1718278267
0.2369208293
0.0644420726
0.2983492729
0.3591634321
0.6509375780
1.0000000000

result:

ok 10 numbers

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#432733#8795. Mysterious Sequenceucup-team004#AC ✓1ms4036kbC++20724b2024-06-07 16:14:562024-06-07 16:14:57

answer

#include <bits/stdc++.h>

using i64 = long long;

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    
    double A, B, X1, Xn;
    int n;
    std::cin >> A >> B >> n >> X1 >> Xn;
    
    std::vector<double> f(n);
    f[0] = 1;
    for (int i = 1; i < n; i++) {
        f[i] = f[i - 1] * A + (i >= 2 ? f[i - 2] * B : 0);
    }
    
    std::vector<double> X(n);
    X[0] = X1;
    X[1] = (Xn - X1 * f[n - 1]) / f[n - 2] + X1 * A;
    for (int i = 2; i < n; i++) {
        X[i] = X[i - 1] * A + X[i - 2] * B;
    }
    std::cout << std::fixed << std::setprecision(10);
    for (int i = 0; i < n; i++) {
        std::cout << X[i] << "\n";
    }
    
    return 0;
}