제출 #899672

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
899672		trMatherz	Happiness (Balkan15_HAPPINESS)	C++17	컴파일 에러	0 ms	0 KiB

happiness

//#include <iostream> //cin, cout
#include "happiness.h"
/*
#include <fstream>
std::ifstream cin ("ex.in");
std::ofstream cout ("ex.out");
*/




// includes
#include <cmath> 
#include <set>
#include <map>
#include <queue>
#include <string>
#include <vector>
#include <array>
#include <algorithm>
#include <numeric>
#include <iomanip>
#include <unordered_set>
#include <stack>
#include <ext/pb_ds/assoc_container.hpp>
#include <random>
#include <chrono>



//usings 
using namespace std;
using namespace __gnu_pbds;


// misc
#define ll long long
#define pb push_back
#define pq priority_queue
#define ub upper_bound
#define lb lower_bound
template<typename T, typename U> bool emin(T &a, const U &b){ return b < a ? a = b, true : false; }
template<typename T, typename U> bool emax(T &a, const U &b){ return b > a ? a = b, true : false; }
typedef uint64_t hash_t;

// vectors
#define vi vector<int>
#define vvi vector<vi>
#define vvvi vector<vvi>
#define vpii vector<pair<int, int>>
#define vvpii vector<vector<pair<int, int>>>
#define vppipi vector<pair<int, pair<int, int>>>
#define vl vector<ll>
#define vvl vector<vl>
#define vvvl vector<vvl>
#define vpll vector<pair<ll, ll>>
#define vb vector<bool>
#define vvb vector<vb>
#define vs vector<string>
#define sz(x) (int)x.size()
#define rz(x,y) x.resize(y)
#define all(x) x.begin(), x.end()


// pairs
#define pii pair<int, int>
#define pll pair<ll, ll>
#define mp make_pair
#define f first
#define s second

// sets
#define si set<int>
#define sl set<ll>
#define ss set<string>
#define in insert
template <class T> using iset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

// maps
#define mii map<int, int>
#define mll map<ll, ll>

// loops
#define FR(x, z, y) for (int x = z; x < y; x++)
#define FRe(x, z, y) FR(x, z, y + 1)
#define F(x, y) FR(x, 0, y)
#define Fe(x, y) F(x, y + 1)
#define A(x, y) for(auto &x : y)

struct Node {
    ll l, r, v = 0;
    Node *lc = nullptr, *rc = nullptr;
    Node(ll tl, ll tr) : l(tl), r(tr) {}

    void expand(){
        if(!lc && l != r){
            lc = new Node(l, (l + r) / 2);
            rc = new Node((l + r) / 2 + 1, r);
        }
    }

    void put(ll x, ll z){
        if(r < x || x < l) return;
        if(l == r && l == x) {v = z; return;}
        expand();
        v = lc->v + rc->v;
    }

    ll get(ll x, ll y){
        if(r < x || l > y) return 0;
        if(x <= l && r <= y) return v;
        expand();
        return lc->v + rc->v;
    }
};
Node root = null;
bool check(){
    ll cur = 1, ma = root.v;
    while(cur < ma){
        ll t = root.get(0, cur);
        if(t < cur) return false;
        cur = t + 1;
    }
    return true;
}

bool init(int coinsCount, long long maxCoinSize, long long coins[]){
    Node root = new Node(0, maxCoinSize - 1);
    F(i, coinsCount) root.put(coins[i] - 1, coins[i]);
    return check();
}

bool is_happy(int event, int coinsCount, long long coins[]){
    F(i, coinsCount) root.put(coins[i] - 1, event * coins[i]);
    return check();
}

컴파일 시 표준 에러 (stderr) 메시지

happiness.cpp:116:13: error: 'null' was not declared in this scope
  116 | Node root = null;
      |             ^~~~
happiness.cpp: In function 'bool init(int, long long int, long long int*)':
happiness.cpp:128:17: error: conversion from 'Node*' to non-scalar type 'Node' requested
  128 |     Node root = new Node(0, maxCoinSize - 1);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
   16 |  long long max_code;
      |            ^~~~~~~~