Submission #1262811

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Source Code Expand

#include <cstdio>
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <ctime>
#include <cstring>
#include <cassert>
#include <bitset>
#include <sstream>
#include <queue>

#define pb push_back
#define mp make_pair
#define fs first
#define sc second
#define sz(a) ((int) (a).size())
#define eprintf(...) fprintf(stderr, __VA_ARGS__)

using namespace std;

typedef long long int64;
typedef long double ldb;

const long double eps = 1e-9;
const int inf = (1 << 30) - 1;
const long long inf64 = ((long long)1 << 62) - 1;
const long double pi = acos(-1);

template <class T> T sqr (T x) {return x * x;}
template <class T> T abs (T x) {return x < 0 ? -x : x;}

int main () {
//  ios_base::sync_with_stdio(0);
//	freopen("input.txt", "rt", stdin);
//	freopen("output.txt", "wt", stdout);
	
	int a, b, c;
	cin >> a >> b >> c;

	if (a == b && a == c) {
		cout << -1 << endl;
		return 0;
	}

	int res = 0;
	while (a % 2 == 0 && b % 2 == 0 && c % 2 == 0) {
		++res;
		a /= 2;
		b /= 2;
		c /= 2;

		int s = a + b + c;
		a = s - a;
		b = s - b;
		c = s - c;
	}

	cout << res << endl;

	return 0;
}

Submission Info

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