結果

問題 No.2249 GCDistance
コンテスト
ユーザー sayan maiti
提出日時 2023-03-18 14:19:25
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 336 ms / 5,000 ms
コード長 5,372 bytes
コンパイル時間 1,788 ms
コンパイル使用メモリ 197,148 KB
最終ジャッジ日時 2025-02-11 15:04:32
ジャッジサーバーID
（参考情報） 		judge4 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 10
権限があれば一括ダウンロードができます

ソースコード

diff #
raw source code 

/*
Lighting up the path with no end    ♪ ♫ ♪ (kirari to hate no nai michi wo)
The twinkling starlight     ♪ ♫ ♪ (terashi teku starlight)
I can't see anything    ♪ ♫ ♪ (nani mo mienai keredo)
But I continue my way   ♪ ♫ ♪ (boku wa susunde yuku)
Like the lucid wind of twilight     ♪ ♫ ♪ (suki tooru kaze no yooni)
If I could soar across the night sky    ♪ ♫ ♪ (kono yozora wo tobeta nara)
I wonder if my voice dirtied with sand  ♪ ♫ ♪ (suna ni mamireta koe mo)
Can shine again     ♪ ♫ ♪ (mata hikareru no kana)

Artist:- Divela
Song:- Meteor
*/


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

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define fastio()                  \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0)
#define pb push_back
#define show(x) cout << (#x) << " : " << x << endl;
//typedef __int128 bigll;
typedef long long ll;
#define ull unsigned long long
#define ld long double
#define pow power
#define mp make_pair
#define ff first
#define ss second
#define pii pair<int, int>
#define pll pair<long long, long long>
#define sq(x) ((x) * (x))
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define siz(a) int((a).size())
#define For(i,a,b) for(int (i)=(a);(i) < (b); ++(i))
#define Forl(i,a,b) for(ll (i)=(a);(i) < (b); ++(i))
#define Forn(i,a,b) for(int (i)=(a);(i) >= (b); --(i))
#define Fornl(i,a,b) for(ll (i)=(a);(i) >= (b); --(i))
#define endl "\n"
#define pi 3.14159265
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
const ll mod = 1000 * 1000 * 1000 + 7;
const ll mod1 = 998244353;
const ll INF  = 1ll*1000*1000*1000*1000*1000*1000 + 7; 
//using namespace __gnu_pbds;
using namespace std;
//typedef tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
//typedef tree<pair<ll, ll>,null_type,less<pair<ll, ll>>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;


ll power(ll x, ll y) 
{ 
   ll res = 1;      
  
   
    while (y > 0) 
    { 
       
        if (y & 1) 
            res = (long long)(res*x);  // adding powers wherever bit is set
  

        y = y>>1; 

        x = (long long)(x*x); // increasing power by 2

        //cout<<x<<'\n'; 
    } 
    return res; 
} 




// Stolen Templates

template<typename F, typename S>
ostream& operator <<(ostream& ostream, pair<F, S>& p) {
    cout << p.first << " " << p.second;
    return ostream;
}
 
template<typename T>
ostream& operator <<(ostream& ostream, vector<T>& v) {
    for(auto& element : v) {
        cout << element << " ";
    }
    return ostream;
}
 
template<typename T>
ostream& operator <<(ostream& ostream, vector<vector<T>>& v) {
    for(auto& row : v) {
        for(auto& cell : row) {
            cout << cell << " ";
        }
        cout << "\n";
    }
    return ostream;
}
 
template<typename F, typename S>
istream& operator >>(istream& istream, pair<F, S>& p) {
    cin >> p.first >> p.second;
    return istream;
}
 
template<typename T>
istream& operator >>(istream& istream, vector<T>& v) {
    for(auto& element : v) {
        cin >> element;
    }
    return istream;
}

void print() {
    cout << endl;
}

template <typename T> void print(const T& t) {
    cout << t << endl;
}

template <typename First, typename... Rest> void print(const First& first, const Rest&... rest) {
    cout << first << " ";
    print(rest...); // recursive call using pack expansion syntax
}

void dbg() {
    cerr << endl;
}

template <typename T> void dbg(const T& t) {
    cerr << t << endl;
}

template <typename First, typename... Rest> void dbg(const First& first, const Rest&... rest) {
    cerr << first << " ";
    dbg(rest...); // recursive call using pack expansion syntax
}

// Stolen Templates end here

// ostream& operator << (ostream&, bigll val) {
//     string temp;
//     while (val > 0) { temp.pb(val % 10 + '0'); val /= 10; }
//     for(int i = siz(temp) - 1; i >= 0; i--)cout<<temp[i];
//     return cout;
// } // inside class

// istream& operator >> (istream&, bigll & val) {
//     string temp; cin>>temp; val = 0;
//     for(int i = 0; i < siz(temp); i++)val = val * 10 + temp[i] - '0';
//     return cin;
// } // for cin we use & because we want the original object we are sending not a copy of it

const ll n = 1e7l;

vector<int> phi(n + 1);
void phi_1_to_n() {
    
    for (int i = 0; i <= n; i++)
        phi[i] = i;

    for (int i = 2; i <= n; i++) {
        if (phi[i] == i) {
            for (int j = i; j <= n; j += i)
                phi[j] -= phi[j] / i;
        }
    }
}

int main()
{

// #ifndef ONLINE_JUDGE    
// freopen("input.txt","r",stdin);
// freopen("output.txt","w",stdout);
// #endif


// If you plan on using set / map do check if it will TLE or not
fastio();
    
    phi_1_to_n();
    vector <ll> ans(n + 1);
    for(ll i = 2; i <= n; i++) {
        ans[i] += ans[i - 1] + 2 * (i - 1) - phi[i];
        //cout<<ans[i]<<endl;
    }
    ll T;
    cin>>T;

    while(T--)
    {

        ll x;
        cin>>x;
        cout<<ans[x]<<endl;

    }

return 0;
}

// check all product based operations for integer overflow
// careful of renamed variables especially in loops
//python interactive_runner.py python local_testing_tool.py 0 -- c.exe
0