[ Problem Solving :: 백준 ] 14606 / 피자 (Small)

# Link

https://www.acmicpc.net/problem/14606

14606번: 피자 (Small)

 

 

# Code - C++

//
//  BOJ
//  ver.C++
//
//  Created by GGlifer
//
//  Open Source

#include <iostream>

using namespace std;

#define endl '\n'
#define len(x) (int)(x).length()
#define size(x) (int)(x).size()
#define str(x) to_string(x)
#define error logic_error("line " + str(__LINE__))

// Set up : Definitions
/* None */

// Set up : Global Variables
/* None */

// Set up : Functions Declaration
int f(int n);


int main()
{
    // Set up : I/O
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    // Set up : Input
    int N; cin >> N;

    // Process
    int ans = f(N);

    // Control : Output
    cout << ans << endl;
}

// Helper Functions
int f(int n)
{
    if (n <= 1) return 0;

    int a = n/2;
    int b = n - n/2;

    return a*b + f(a) + f(b);
}

 

 

지적, 조언, 첨언 모두 환영합니다!!!