Submission #61024

#	Time	Username	Problem	Language	Result	Execution time	Memory
61024		nvmdava	Rice Hub (IOI11_ricehub)	C++17	100 / 100	51 ms	2192 KiB

ricehub

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

vector<long long> v;
bool price(int X[], int l,int r, long long B){
	
	int i;
	long long p = 0;
	int m = (r + l) / 2;
	
	p = X[m] * (m - l - r + m) - v[m] + v[l] + v[r + 1] - v[m + 1];
	
	if(p <= B){
		return 1;
	} else {
		return 0;
	}
	
}

int besthub(int n, int L, int X[], long long B)
{
	v.push_back(0);
	for(int i = 0; i < n; i ++){
		v.push_back(v.back() + X[i]);
	}
	int l = 0, r = 0, m,dif = -1,i;
	for(i = 0; i < n;i++){
		l = i; r = n ;
		while(l + 1 != r){
			m = (l+r) / 2;
			if(price(X,i,m,B)){
				l = m;
			} else {
				r = m;
			}
		}
		dif = max(dif , r - i);
	}
	return dif;
}

Compilation message (stderr)

ricehub.cpp: In function 'bool price(int*, int, int, long long int)':
ricehub.cpp:8:6: warning: unused variable 'i' [-Wunused-variable]
  int i;
      ^

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 32 / 32