제출 #152186

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
152186		12tqian	Stove (JOI18_stove)	C++14	0 / 100	2 ms	376 KiB

stove

#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
 
using namespace std;
using namespace __gnu_pbds;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
 
const double PI = 4 * atan(1);
 
#define sz(x) (int)(x).size()
#define ll long long
#define ld long double
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define pii pair <int, int>
#define vi vector<int>
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
#define vpi vector<pair<int, int>>
#define vpd vector<pair<double, double>>
#define pd pair<double, double>
 
#define f0r(i,a) for(int i=0;i<a;i++)
#define f1r(i,a,b) for(int i=a;i<b;i++)
#define trav(a, x) for (auto& a : x)
 
template<typename A, typename B> ostream& operator<<(ostream &cout, pair<A, B> const &p) { return cout << "(" << p.f << ", " << p.s << ")"; }
template<typename A> ostream& operator<<(ostream &cout, vector<A> const &v) {
  cout << "["; for(int i = 0; i < v.size(); i++) {if (i) cout << ", "; cout << v[i];} return cout << "]";
}
 
void fast_io(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
}
void io(string taskname){
    string fin = taskname + ".in";
    string fout = taskname + ".out";
    const char* FIN = fin.c_str();
    const char* FOUT = fout.c_str();
    freopen(FIN, "r", stdin);
    freopen(FOUT, "w", stdout);
    fast_io();
}

const int MAX = 1e5 + 5;
vi t;

int main(){
	fast_io();
	int n, k;
	cin >> n >> k;
	f0r(i, n){
		int ti;
		cin >> ti;
		t.eb(ti);
	}
	sort(all(t));
	set<int> tmp;
	for(int x: t) tmp.insert(x);
	t.clear();
	for(int x: tmp) t.eb(x);
	n =  sz(t);
	if(n<= k){
		cout << n << endl;
		return 0;
	}
	int total = t[sz(t) - 1] - t[0] + 1;
	set<int> diff;
	f0r(i, n-1){
		diff.insert(t[i+1] - t[i] - 1);
	}
	vi use;
	for(int x: diff) use.eb(x);
	reverse(all(use));
	int sum = 0;
	f0r(i, k-1){
		sum += use[i];
	}
	//cout << total - sum << endl;
	cout << total << endl;
	return 0;
	
}

컴파일 시 표준 에러 (stderr) 메시지

stove.cpp:1:0: warning: ignoring #pragma comment  [-Wunknown-pragmas]
 #pragma comment(linker, "/stack:200000000")
 
stove.cpp: In function 'void io(std::__cxx11::string)':
stove.cpp:52:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen(FIN, "r", stdin);
     ~~~~~~~^~~~~~~~~~~~~~~~~
stove.cpp:53:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen(FOUT, "w", stdout);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50