Submission #9307

#	Time	Username	Problem	Language	Result	Execution time	Memory
9307		ainu7	Wiring (kriii2_W)	C++98	4 / 4	0 ms	1672 KiB

P

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <vector>
#include <string>
#include <queue>
#include <map>
#include <algorithm>
#include <cmath>
#include <iostream>
#include <sstream>
#include <set>
using namespace std;

int main()
{
  long long N;
  cin >> N;
  if (N%2) N/=2; else N--;
  cout << N << endl;
}

• Subtask 1: 1 / 1
• Subtask 2: 3 / 3