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답안 #538589

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
538589 2022-03-17T07:33:59 Z ssense 쌀 창고 (IOI11_ricehub) C++14
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#include <bits/stdc++.h>
#include "ricehub.h"
#define startt ios_base::sync_with_stdio(false);cin.tie(0);
typedef long long  ll;
using namespace std;
#define vint vector<int>
#define all(v) v.begin(), v.end()
#define MOD 1000000007
#define MOD2 998244353
#define MX 1000000000
#define MXL 1000000000000000000
#define PI (ld)2*acos(0.0)
#define nax 200005
#define pb push_back
#define sc second
#define fr first
#define endl '\n'
#define ld long double
#define NO cout << "NO" << endl
#define YES cout << "YES" << endl
int ceildiv(int one, int two) {if (one % two == 0) {return one / two;}else {return one / two + 1;}} int power(int n, int pow, int m) {if (pow == 0) return 1;if (pow % 2 == 0) {ll x = power(n, pow / 2, m);return (x * x) % m;}else return (power(n, pow - 1, m) * n) % m;} int gcd(int a, int b) { if (!b)return a; return gcd(b, a % b);} int factorial(int n, int mod) {if (n > 1)return (n * factorial(n - 1, mod)) % mod; else return 1;} int lcm(int a, int b) {return (a * b) / gcd(a, b);} vector<int> read(int n) {vector<int> a; for (int i = 0; i < n; i++) { int x; cin >> x; a.pb(x);} return a;}struct prefix_sum{vint pref;void build(vint a){pref.pb(0);for(int i = 0; i < a.size(); i++){pref.pb(pref.back()+a[i]);}}int get(int l, int r){return pref[r]-pref[l-1];}};//ssense

int besthub(int n, int lungime, int a[], long long buget)
{
	vector<int> prefix;
	for(int i = 0; i < n; i++)
	{
		if(i == 0)
		{
			prefix.pb(a[i]);
		}
		else
		{
			prefix.pb(a[i]+prefix.back());
		}
	}
	vector<int> suffix;
	for(int i = n-1; i >= 0; i--)
	{
		if(i == n-1)
		{
			suffix.pb(lungime-a[i]);
		}
		else
		{
			suffix.pb(suffix.back()+lungime-a[i]);
		}
	}
	reverse(all(suffix));
	int ans = 0;
	int l = 1, r = n;
	while(l <= r)
	{
		int mid = l+r>>1;
		deque<int> q;
		for(int i = 0; i < mid; i++)
		{
			q.push_back(i);
		}
		int now = suffix[q.front()]-a[q[mid/2]]*(mid-1-mid/2)+prefix[q.back()]-a[mid/2]*(mid/2);
		ll ansnow = now;
		for(int i = mid; i < n; i++)
		{
			q.pop_front();
			q.push_back(a[i]);
			now = suffix[q.front()]-a[q[mid/2]]*(mid-1-mid/2)+prefix[q.back()]-a[mid/2]*(mid/2);
			ansnow = min(now, ansnow);
		}
		if(ansnow > buget)
		{
			r = mid-1;
		}
		else
		{
			ans = mid;
			l = mid+1;
		}
	}
	return ans;
}

/*
int32_t main(){
	startt
	int t = 1;
	//cin >> t;
	while (t--) {
		int a[5]= {1, 2, 10, 12, 14};
		cout << besthub(5, 20, a, 6);
	}
}


*/

Compilation message

ricehub.cpp: In member function 'void prefix_sum::build(std::vector<int>)':
ricehub.cpp:21:667: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 | int ceildiv(int one, int two) {if (one % two == 0) {return one / two;}else {return one / two + 1;}} int power(int n, int pow, int m) {if (pow == 0) return 1;if (pow % 2 == 0) {ll x = power(n, pow / 2, m);return (x * x) % m;}else return (power(n, pow - 1, m) * n) % m;} int gcd(int a, int b) { if (!b)return a; return gcd(b, a % b);} int factorial(int n, int mod) {if (n > 1)return (n * factorial(n - 1, mod)) % mod; else return 1;} int lcm(int a, int b) {return (a * b) / gcd(a, b);} vector<int> read(int n) {vector<int> a; for (int i = 0; i < n; i++) { int x; cin >> x; a.pb(x);} return a;}struct prefix_sum{vint pref;void build(vint a){pref.pb(0);for(int i = 0; i < a.size(); i++){pref.pb(pref.back()+a[i]);}}int get(int l, int r){return pref[r]-pref[l-1];}};//ssense
      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ~~^~~~~~~~~~
ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:54:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   54 |   int mid = l+r>>1;
      |             ~^~
ricehub.cpp:67:28: error: no matching function for call to 'min(int&, ll&)'
   67 |    ansnow = min(now, ansnow);
      |                            ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from ricehub.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
ricehub.cpp:67:28: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   67 |    ansnow = min(now, ansnow);
      |                            ^
In file included from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from ricehub.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:278:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  278 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:278:5: note:   template argument deduction/substitution failed:
ricehub.cpp:67:28: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   67 |    ansnow = min(now, ansnow);
      |                            ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from ricehub.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3468:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)'
 3468 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3468:5: note:   template argument deduction/substitution failed:
ricehub.cpp:67:28: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   67 |    ansnow = min(now, ansnow);
      |                            ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from ricehub.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)'
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3474:5: note:   template argument deduction/substitution failed:
ricehub.cpp:67:28: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   67 |    ansnow = min(now, ansnow);
      |                            ^