Submission #319701

# Submission time Handle Problem Language Result Execution time Memory
319701 2020-11-06T08:19:04 Z neki Rice Hub (IOI11_ricehub) C++14
Compilation error
0 ms 0 KB
#include <bits/stdc++.h>
#define loop(i, a, b) for(long long i=a;i<b;i++)
#define pool(i, a, b) for(long long i=a-1;i>=b;i--)
#define fore(i, a) for(auto&& i:a)
#define fi first
#define se second
#define ps(a) push_back(a)
#define pb(a) pop_back(a)
#define sc scanf
#define vc vector
#define pa pair<ll, ll>
#define ll long long
#define lb lower_bound
#define ub upper_bound
#define all(a) a.begin(), a.end()
#define llmax LLONG_MAX/2
#define llmin -LLONG_MAX/2
using namespace std;
#define mn 1010
#define pa pair<ll, ll>
#define ld long double 
ll pref[mn];
ll cl(ll l, ll r, ll c){
    return (pref[r] - pref[c]) - (pref[c-1]-pref[l-1]);
}
ll cs(ll l, ll r, ll c){
    return (pref[r] - pref[c]) - (pref[c]-pref[l-1]);
}
ll besthub(ll r, ll l,ll x[], ll b){
    loop(i, 0, r) pref[i+1]=pref[i]+x[i];
    ll lf=1, ans=0;
    loop(i, 1, r+1){
        if(lf<i and 2 * i - lf>r or cl(lf, 2 * i - lf, i)>b) lf++;
        ans=max(ans, 2 * (i- lf) +1);
    }
    lf=1;
    loop(i, 1, r){
        if(lf<i and 2 * i - lf + 1>r or cs(lf, 2 * i - lf + 1, i)>b) lf++;
        ans=max(ans, 2 * (i- lf+1));
    }
    return ans;
}

Compilation message

ricehub.cpp: In function 'long long int besthub(long long int, long long int, long long int*, long long int)':
ricehub.cpp:34:17: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   34 |         if(lf<i and 2 * i - lf>r or cl(lf, 2 * i - lf, i)>b) lf++;
      |            ~~~~~^~~~~~~~~~~~~~~~
ricehub.cpp:39:17: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   39 |         if(lf<i and 2 * i - lf + 1>r or cs(lf, 2 * i - lf + 1, i)>b) lf++;
      |            ~~~~~^~~~~~~~~~~~~~~~~~~~
/tmp/ccyjK2lg.o: In function `main':
grader.cpp:(.text.startup+0xae): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status