算法竞赛模板

常用模板

#pragma GCC optimize(3)
#include<bits/stdc++.h>

// =============全局 LL ================
#define int long long
// =============全局 LL ================


#define fuckios ios::sync_with_stdio(false);cin.tie(0);

#define gcd __gcd

#define ms(sth,val) memset(sth,val,sizeof(sth))
#define eb(x) emplace_back(x)
#define pb(x) push_back(x)
#define sz(x) ((int)(x).size())
#define endl '\n'

#ifdef LOCAL
#define debug(a) cout<<#a<<"-->"<<a<<endl;
#endif
#ifndef LOCAL
template<typename T>
void debug(T x){}
#endif


// RP ++ ;

//=========================================

using namespace std;

// small on top
// priority_queue<int,vector<int>,greater<int>> que;
// big on top
// priority_queue<int,vector<int>,less<int>> que;

struct sensei_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }
    
    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

bool cmp(int x,int y){
    //big to small
    return x>y;
}

int getmid(int s, int t)
{
    // s-> start;
    int ret = s + ((t - s) >> 1);
    return ret;
}


const int32_t inf = 0x3f3f3f3f;
const int64_t inf_ll = 0x3f3f3f3f3f3f3f3f;

using ll = long long;
using ull = unsigned long long;
using pii = pair<int,int> ;

template <typename T>
inline void read(T& x)
{
    x = 0;
    char ch = getchar();
    ll f = 1;
    while (!isdigit(ch)) {
        if (ch == '-')
            f *= -1;
        ch = getchar();
    }
    while (isdigit(ch)) {
        x = x * 10 + ch - 48;
        ch = getchar();
    }
    x *= f;
}
template<typename T, typename ...Arg>
inline void read(T&x, Arg&...args)
{
    read(x);
    read(args...);
}

struct node{
    int x;
    int y;
};

const int N = 1e6 + 10;



inline void sensei()
{
    
}

signed main()
{
#ifndef LOCAL
    fuckios
#endif
    
    
    
    return 0;
}

XCPC

#include <bits/stdc++.h>
//========================
#define int long long
//========================
#define fuckios ios::sync_with_stdio(false);cin.tie(0);
#define gcd __gcd
#define endl '\n'
using namespace std;
const int32_t inf = 0x3f3f3f3f;
const int64_t inf_ll = 0x3f3f3f3f3f3f3f3f;
using ll = long long;

const int N = 1e6 + 10;

inline void sensei()
{
    
}

signed main()
{
    
    return 0;
}