Submission #336076

#	Time	Username	Problem	Language	Result	Execution time	Memory
336076		knightron0	Rice Hub (IOI11_ricehub)	C++14	Compilation error	0 ms	0 KiB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"

using namespace std;
const int MOD = 1e9 + 7;
const int MAXN = 1e5 + 5;

int a[MAXN], pref[MAXN];
int n;


bool check(int x, int b){
	for(int i= 1;i<=n-x+1;i++){
		vector<int> md;
		if(x & 1){
			md.pb((i + i +x-1)/2);
		} else {
			md.pb((i + i +x-1)/2);
			md.pb(((i + i +x-1)/2)+1);
		}
		for(int m: md){
			int sum1 = pref[m]-pref[i-1];
			sum1 *= -1;
			sum1 += (m-(i-1))*a[m];
			int sum2 = pref[i+x-1]-pref[m];
			sum2 -= (i+x-1-m)*a[m];
			int sum = sum1+sum2;
			if(sum <= b){
				return true;
			}
		}
	}
	return false;
}


int besthub(int r, int l, int x[], int b) {
	n = r;
	pref[0] = 0;
	for(int i= 1;i<=n;i++){
		a[i] = x[i-1];
		pref[i] = pref[i-1] + a[i];
	}
	int lo = 1;
    int hi = n;
    while(lo <= hi){
    	int mid = lo+(hi-lo)/2;
    	if(check(mid, b)){
    		lo = mid+1;
    	} else {
    		hi = mid-1;
    	}
    }
    if(!check(lo, b)){
    	return hi;
    } else {
		return lo;
    }

}

Compilation message (stderr)

ricehub.cpp: In function 'bool check(int, int)':
ricehub.cpp:16:7: error: 'class std::vector<int>' has no member named 'pb'
   16 |    md.pb((i + i +x-1)/2);
      |       ^~
ricehub.cpp:18:7: error: 'class std::vector<int>' has no member named 'pb'
   18 |    md.pb((i + i +x-1)/2);
      |       ^~
ricehub.cpp:19:7: error: 'class std::vector<int>' has no member named 'pb'
   19 |    md.pb(((i + i +x-1)/2)+1);
      |       ^~