Submission #581259

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
581259	2022-06-22T12:33:59 Z	stevancv	Rice Hub (IOI11_ricehub)	C++14	Compilation error	0 ms	0 KB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int mxn = 1e5 + 2;
int a[mxn];
ll n, k;
ll Get(ll l, ll r) {
    if (l > r) return 0LL;
    ll ans = a[r];
    if (l > 0) ans -= a[l - 1];
    return ans;
}
bool Can(ll x) {
    for (ll i = 0; i <= n - x; i++) {
        ll j = i + x - 1;
        ll o = i + j >> 1;
        ll val = Get(o, o);
        ll tr = val * (o - i + 1) - Get(i, o);
        tr += Get(o + 1, j) - val * (j - o);
        if (tr <= k) return true;
    }
    return false;
}
ll besthub(int N, int M, int K, int A[]) {
    n = N; k = K;
    for (ll i = 0; i < n; i++) {
        a[i] = A[i];
        if (i > 0) a[i] += a[i - 1];
    }
    ll l = 1; ll r = n;
    ll ans = l;
    while (l <= r) {
        ll mid = l + r >> 1;
        if (Can(mid)) {
            l = mid + 1;
            ans = mid;
        }
        else r = mid - 1;
    }
    return ans;
}

Compilation message

ricehub.cpp: In function 'bool Can(long long int)':
ricehub.cpp:22:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   22 |         ll o = i + j >> 1;
      |                ~~^~~
ricehub.cpp: In function 'long long int besthub(int, int, int, int*)':
ricehub.cpp:39:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |         ll mid = l + r >> 1;
      |                  ~~^~~
/usr/bin/ld: /tmp/ccxOZBNx.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