Submission #393687

#	Time	Username	Problem	Language	Result	Execution time	Memory
393687		Karliver	Rice Hub (IOI11_ricehub)	C++14	Compilation error	0 ms	0 KiB

ricehub

#include "ricehub.h"
#include <bits/stdc++.h>
#include <fstream>
#define FIXED_FLOAT(x)  std::fixed <<std::setprecision(20) << (x)
#define all(v) (v).begin(), (v).end()
using namespace  std;
#define forn(i,n) for (int i = 0; i < (n); ++i)
using ll = long long;
int mod = (ll)1e9 + 7;
#define PI acos(-1)
typedef pair<int, int> pairs;
typedef complex<ll> G;
const int INF = 1e9 + 1;
const int N = 1e6 + 100;
const double eps = 1e-3;


int besthub(int R, int L, int X[], ll B) {
    int l = 0;
    int r = 0;
    vector<ll> sm(R + 1, 0);
    ll cost = 0;
    forn(i, R)sm[i + 1] = X[i] + sm[i - 1];
    auto upd = [&]() {
        int mid = (l + r) / 2;
        cost = 0;
        cost += (mid - l + 1)* 1ll * X[mid];
        cost -= sm[mid + 1] - sm[l];
        cost -= (r - mid + 1) * X[mid];
        cost += sm[r + 1] - sm[mid];


    };
    int ans = 0;
    while(l < R) {
        while(r < R - 1 && cost <= B) {
            ++r;
            upd();
        }
        if(cost > B) {
            r--;
            upd();
        }
        ckma(ans, r - l + 1);
        ++l;
    }
    return ans;
}

Compilation message (stderr)

ricehub.cpp: In function 'int besthub(int, int, int*, ll)':
ricehub.cpp:45:9: error: 'ckma' was not declared in this scope
   45 |         ckma(ans, r - l + 1);
      |         ^~~~