Submission #54863

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
54863	2018-07-05 08:23:54	FLDutchman	Rice Hub (IOI11_ricehub)	C++14	100 / 100	68 ms	3452 KiB

ricehub

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#include "bits/stdc++.h"
#include "ricehub.h"
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
vi prefix, suffix;
vi rice;
ll MAX;
ll cost(ll l, ll r){
    ll m = (l+r)/2;
    ll c = prefix[r] - prefix[m] - rice[m] * (r-m);
    c += suffix[l] - suffix[m] - (MAX - rice[m]) * (m-l);
    return c;
}
bool possible(int l, int r, ll B){
    //cout <<l << " " << r << " " << cost(l,r) << endl;
    return cost(l, r) <= B;
}
int besthub(int R, int L, int X[], ll B)
{
    MAX = L;
    rice.resize(R);
    for(int i = 0; i < R; i++) rice[i] = X[i];
    prefix.assign(R+1, 0); suffix.assign(R+1, 0);
 
 
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• Subtask 2: 25 / 25
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• Subtask 4: 32 / 32