Submission #1364381

#	Time	Username	Problem	Language	Result	Execution time	Memory
1364381		saywoo	RUN Sequence (KAISTRUN26SPRING_B)	C++20	100 / 100	1 ms	344 KiB

Main

#include <bits/stdc++.h>
using namespace std;

using ll = long long int;

ll r, u, n;
ll f[51];

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> r >> u >> n;

    f[1] = 1; f[2] = 1;
    for (int i = 3; i <= 50; i++) f[i] = f[i-1] + f[i-2];
    
    if (n >= 50) { cout << r * u << '\n'; return 0; }

    if (r <= f[n-1]) cout << r * u << '\n';
    else cout << f[n-1] * u + (r - f[n-1]) * f[n-2] << '\n';

    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50