# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
71647 | Mamnoon_Siam | Prosjek (COCI18_prosjek) | C++17 | 4 ms | 756 KiB |
이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/trie_policy.hpp>
#include <ext/pb_ds/tag_and_trait.hpp>
using namespace std;
using namespace __gnu_pbds;
template<typename T>
using ordered_set = tree<
T,
null_type,
less<T>,
rb_tree_tag,
tree_order_statistics_node_update>;
// gives the number of keys with value strictly less than x
#define lesscount(x) order_of_key(x)
// gives the iterator to kth element (starting from 0)
#define kthiterator(x) find_by_order(x)
#define clock_starts() clock_t begin = clock()
#define clock_ends() clock_t end = clock()
#define print_running_time() double elapsed_secs = double(end - begin) / CLOCKS_PER_SEC; \
printf("Elapsed Time : %.10f second(s)\n", elapsed_secs)
#define readfile(s) freopen(s, "r", stdin)
#define writefile(s) freopen(s, "w", stdout)
#define debug(s) cout<< #s <<" = "<< s <<endl
#define all(v) (v).begin(), (v).end()
#define KeepUnique(v) (v).erase( unique(all(v)), v.end() )
#define cin_cout_is_cool ios_base::sync_with_stdio(false); cin.tie(NULL)
#define PrintBinary(n) cout << #n << " = " << bitset<64>(n) << endl
#define MEMSET(a,val) memset(a, val, sizeof a)
#define PB push_back
#define endl '\n'
#define cin(n) scanf("%d", &n)
#define popcount(x) __builtin_popcount((x))
#define popcountll(x) __builtin_popcountll((x))
inline int myrand(int l, int r) {
int ret = rand(); ret <<= 15; ret ^= rand();
if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
return ret;
}
template <typename F, typename S>
ostream& operator << (ostream& os, const pair< F, S>& p) {
return os<<"(" <<p.first<<", "<<p.second<<")"; }
typedef pair<int, int> ii;
template<typename T> using min_pq =
priority_queue<T, vector<T>, greater<T> >;
template<typename T>T max(T a_,T b_,T c_) { return max(a_,max(b_,c_)); }
template<typename T>T min(T a_,T b_,T c_) { return min(a_,min(b_,c_)); }
template<typename T>T min(T a_,T b_,T c_, T d_) { return min(min(a_, b_),min(c_,d_)); }
template<typename T>T max(T a_,T b_,T c_, T d_) { return max(max(a_, b_),max(c_,d_)); }
//int dx[] = {-1, +0, +1, +0};
//int dy[] = {+0, +1, +0, -1};
template<typename T> inline T ceil(T num, T d)
{ return (T)(num/d) + (num%d>(T)0 ? (T)1 : (T)0); }
#define block_no(idx) (idx/BLOCK_SIZE)
#define block_starting(idx) (block_no(idx)*BLOCK_SIZE)
#define block_ending(idx) (min(n, block_no(idx)*BLOCK_SIZE+BLOCK_SIZE-1))
#define block_rank(idx) (idx%BLOCK_SIZE)
int32_t main () {
//readfile("input.in");
//writefile("output.out");
int n;
cin>>n;
vector<double> v(n);
for(double &b : v) cin>>b;
while(v.size() > 1) {
sort(all(v));
double temp = (v[0]+v[1])/2.0;
v.push_back(temp);
v.erase(v.begin());
v.erase(v.begin());
}
printf("%.20lf\n", v.back());
return 0;
}
컴파일 시 표준 에러 (stderr) 메시지
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