Broken Clock

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
#include <queue>
#include <climits>
#include <map>
using namespace std;
typedef long long ll;

void task4(){

    double x;
    cin >> x;
    
    if(x == 1.0){
        cout << -1 << endl;
    } else {
        double diff = abs(2.0 * x - 2.0);
        ll result = (ll)floor(diff);
        cout << result << endl;
    }

}

void task7() {

   ll x;
    cin >> x;
    
    vector<ll> dist(x + 1, -1);
    queue<ll> q;
    
    q.push(0);
    dist[0] = 0;
    
    while(!q.empty()){
        ll curr = q.front();
        q.pop();
        
        if(curr == x){
            cout << dist[x] << endl;
            return;
        }
        
        if(curr + 11 <= x && dist[curr + 11] == -1){
            dist[curr + 11] = dist[curr] + 1;
            q.push(curr + 11);
        }
        
        if(curr - 2 >= 0 && dist[curr - 2] == -1){
            dist[curr - 2] = dist[curr] + 1;
            q.push(curr - 2);
        }
    }
    
    cout << -1 << endl;

}

void task3(){
    ll n;
    cin >> n;
    
    const ll MOD = 1000000007;
    vector<ll> dp(n + 1, 0);
    dp[0] = 1;
    
    for(ll i = 1; i <= n; i++){
        for(ll j = 1; j <= 6; j++){
            if(i - j >= 0){
                dp[i] = (dp[i] + dp[i - j]) % MOD;
            }
        }
    }
    
    cout << dp[n] << endl;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    task4();

}

Test 1

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Test 2

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Test 3

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Test 4

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Test 5

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Test 6

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Test 7

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Test 8

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Test 9

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Test 10

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Test 11

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Test 12

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Test 13

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Test 14

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Test 15

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Test 16

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Test 17

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Test 18

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Test 19

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Test 20

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Test 21

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Test 22

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Test 23

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Test 24

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Test 25

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Test 26

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Test 27

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Test 28

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Test 29

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Test 30

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Test 31

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Test 32

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Test 33

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Test 34

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Test 35

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Test 36

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