답안 #108171

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
108171	2019-04-27T20:24:31 Z	SecretAgent007	쌀 창고 (IOI11_ricehub)	C++17	컴파일 오류	0 ms	0 KB

ricehub

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

#define int long long 

const int INF = 1e18;

vector< int > pref;

int calc(int left, int right, int B, int X[]){
	
	int l = left, r = right;
	
	while(l < r){
		int mid = (l+r+1)/2;
		
		int k = (l+mid)/2;
		
		int cost = X[k-1]*(k-left+1)-(pref[k]-pref[left-1])+(pref[mid]-pref[k])-(mid-k)*X[k-1];
		
		if(cost > B){
			r = mid-1;
		}else{
			l = mid;
		}
	}
	
	return l-left+1;
}

int besthub(int R, int L, int X[], int B){
	
	pref.resize(R+1);
	
	for(int i = 0; i < R; i++){
		pref[i+1] += pref[i];
		pref[i+1] += X[i];
	}
	
	int ans = -INF;
	
	for(int i = 1; i <= R; i++){
		ans = max(calc(i,R,B,X), ans);
	}
	
	return ans;
}
/*
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	
	int r, l, b;
	cin >> r >> l >> b;
	
	int x[r];
	
	for(int i = 0; i < r; i++) cin >> x[i];
	
	cout << besthub(r,l,x,b) << endl;
}
*/

Compilation message

/tmp/ccEiHEgX.o: In function `main':
grader.cpp:(.text.startup+0x92): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status