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답안 #391089

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391089 2021-04-17T20:05:29 Z arwaeystoamneg 쌀 창고 (IOI11_ricehub) C++17
0 / 100
 20 ms 2096 KB 
// EXPLOSION!
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
#include<chrono>

using namespace std;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pair<int, int>> vpi;
typedef vector<pair<ll, ll>> vpll;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define mp make_pair
#define rsz resize
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define f first
#define s second
#define cont continue
#define endl '\n'
//#define ednl '\n'
#define test int testc;cin>>testc;while(testc--)
#define pr(a, b) trav(x,a)cerr << x << b; cerr << endl;
#define message cout << "Hello World" << endl;
const int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 }; // for every grid problem!!
const ll linf = 4000000000000000000LL;
const ll inf = 1000000007;//998244353    

void pv(vi a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vll a) { trav(x, a)cout << x << " "; cout << endl; }void pv(vector<vi>a) {
	F0R(i, sz(a)) { cout << i << endl; pv(a[i]); cout << endl; }
}void pv(vector<vll>a) { F0R(i, sz(a)) { cout << i << endl; pv(a[i]); }cout << endl; }void pv(vector<string>a) { trav(x, a)cout << x << endl; cout << endl; }
void setIO(string s) {
	ios_base::sync_with_stdio(0); cin.tie(0);
	if (sz(s))
	{
		freopen((s + ".in").c_str(), "r", stdin);
		if (s != "test1")
			freopen((s + ".out").c_str(), "w", stdout);
	}
}
#include "ricehub.h"
const int MAX = 100005;
int n, a[MAX], m;
ll b;
ll solve(int c)
{
	ll cur = 0, ans = linf;
	F0R(i, c)cur += abs(a[i] - a[c / 2]);
	ans = cur;
	F0R(i, n - c)
	{
		cur -= abs(a[i] - a[i + c / 2]);
		cur += abs(a[i + c] - a[i + c / 2]);
		if (c & 1)cur -= abs(a[i + 1] - a[i]);
		ans = min(ans, cur);
	}
	return ans;
}
int besthub(int R, int L, int X[], long long B)
{
	n = R;
	m = L;
	F0R(i, n)a[i] = X[i];
	b = B;
	int l = 1, r = n;
	while (l < r)
	{
		int mid = (l + r + 1) / 2;
		if (solve(mid) <= B)
			l = mid;
		else
			r = mid - 1;
	}
	return l;
}
#ifdef arwaeystoamneg
#define MAX_R  1000000

static int R, L;
static long long B;
static int X[MAX_R];
static int solution;

inline
void my_assert(int e) { if (!e) abort(); }

static void read_input()
{
	int i;
	my_assert(3 == scanf("%d %d %lld", &R, &L, &B));
	for (i = 0; i < R; i++)
		my_assert(1 == scanf("%d", &X[i]));
	my_assert(1 == scanf("%d", &solution));
}

int main()
{
	setIO("test1");
	int ans;
	read_input();
	ans = besthub(R, L, X, B);
	if (ans == solution)
		printf("Correct.\n");
	else
		printf("Incorrect.  Returned %d instead of %d.\n", ans, solution);

	return 0;
}
#endif

Compilation message

ricehub.cpp: In function 'void setIO(std::string)':
ricehub.cpp:48:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   48 |   freopen((s + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ricehub.cpp:50:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   50 |    freopen((s + ".out").c_str(), "w", stdout);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 300 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Incorrect 1 ms 212 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Incorrect 1 ms 204 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 588 KB Output is correct
2 Correct 4 ms 568 KB Output is correct
3 Correct 19 ms 2096 KB Output is correct
4 Correct 20 ms 2036 KB Output is correct
5 Correct 10 ms 964 KB Output is correct
6 Correct 10 ms 940 KB Output is correct
7 Correct 17 ms 1740 KB Output is correct
8 Correct 17 ms 1740 KB Output is correct
9 Correct 9 ms 972 KB Output is correct
10 Correct 9 ms 972 KB Output is correct
11 Correct 19 ms 2084 KB Output is correct
12 Correct 19 ms 2084 KB Output is correct
13 Correct 10 ms 972 KB Output is correct
14 Incorrect 10 ms 972 KB Output isn't correct
15 Halted 0 ms 0 KB -