제출 #797661

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
797661		idiotcomputer	Happiness (Balkan15_HAPPINESS)	C++11	60 / 100	1405 ms	524288 KiB

happiness

#include "happiness.h"
#include <bits/stdc++.h>
using namespace std;


const long long int MAX_V = 1e12; 
const int MAX_Q = 1e5;

struct node {
    long long int tl,tr;
    int l = -1;
    int r = -1;
    long long int sum = 0;
    long long int lazy = 0;
};

node segt[125*MAX_Q];
int cnt = 0;

void cnew(int idx){
    long long int m = (segt[idx].tl + segt[idx].tr)/2;
    if (segt[idx].l == -1){
        segt[idx].l = cnt;
        segt[cnt].tl = segt[idx].tl;
        segt[cnt].tr = m;
        cnt++;
    }
    if (segt[idx].r == -1){
        segt[idx].r = cnt;
        segt[cnt].tl = m+1;
        segt[cnt].tr = segt[idx].tr;
        cnt++;
    }
}

void upd(int idx, long long int tl, long long int tr, long long int v){
    if (segt[idx].tl > tr || segt[idx].tr < tl){
        return;
    }
    if (segt[idx].tl >= tl && segt[idx].tr <= tr){
        segt[idx].lazy += v;
        return;
    }
    cnew(idx);
    int cl = segt[idx].l;
    int cr = segt[idx].r;
    upd(cl,tl,tr,v);
    upd(cr,tl,tr,v);
    segt[idx].sum = min(segt[cl].sum + segt[cl].lazy, segt[cr].sum + segt[cr].lazy);
    return;
}

unordered_map<long long int,int> vis;

bool init(int coinsCount, long long maxCoinSize, long long coins[]){
    segt[0].tl = 1;
    segt[0].tr = MAX_V;
    cnt++;
    for (int i =0; i < coinsCount; i++){
        if (coins[i] != MAX_V){
            upd(0,coins[i]+1,MAX_V,coins[i]);
        }
        vis[coins[i]]+=1;
        if (vis[coins[i]] == 1){
            upd(0,coins[i],coins[i],-1*coins[i]);
        }
    }
    if (segt[0].sum + segt[0].lazy >= -1){
        return true;
    }
    return false;
}

bool is_happy(int event, int coinsCount, long long coins[]){
    if (event == -1){
        //shopping
        for (int i =0; i < coinsCount; i++){
            upd(0,coins[i]+1,MAX_V,-1*coins[i]);
            vis[coins[i]] -= 1;
            if (vis[coins[i]] == 0){
                upd(0,coins[i],coins[i],coins[i]);
            }
        }
    } else {
        //adding
        for (int i =0; i < coinsCount; i++){
            upd(0,coins[i]+1,MAX_V,coins[i]);
            vis[coins[i]] += 1;
            if (vis[coins[i]] == 1){
                upd(0,coins[i],coins[i],-1*coins[i]);
            }
        }
    }
    if (segt[0].sum + segt[0].lazy >= -1){
        return true;
    }
    return false;
}
 

컴파일 시 표준 에러 (stderr) 메시지

grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
   16 |  long long max_code;
      |            ^~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 0 / 40