标签:for res algorithm cal open scan thml lib 表示
给出一个长度为NNN的非负整数序列AiA_iAi?,对于所有1≤k≤(N+1)/21 ≤ k ≤ (N + 1) / 21≤k≤(N+1)/2,输出A1,A3,…,A2k?1A_1, A_3, …, A_{2k - 1}A1?,A3?,…,A2k?1?的中位数。即前1,3,5,…1,3,5,…1,3,5,…个数的中位数。
第111行为一个正整数NNN,表示了序列长度。
第222行包含NNN个非负整数Ai(Ai≤109)A_i (A_i ≤ 10^9)Ai?(Ai?≤109)。
输出格式:共(N+1)/2(N + 1) / 2(N+1)/2行,第iii行为A1,A3,…,A2k?1A_1, A_3, …, A_{2k - 1}A1?,A3?,…,A2k?1?的中位数。
对于20%20\%20%的数据,N≤100N ≤ 100N≤100;
对于40%40\%40%的数据,N≤3000N ≤ 3000N≤3000;
对于100%100\%100%的数
#include<iostream> #include<cstdio> #include<algorithm> #include<cstdlib> #include<cstring> #include<string> #include<cmath> #include<map> #include<set> #include<vector> #include<queue> #include<bitset> #include<ctime> #include<deque> #include<stack> #include<functional> #include<sstream> //#include<cctype> //#pragma GCC optimize(2) using namespace std; #define maxn 700005 #define inf 0x7fffffff //#define INF 1e18 #define rdint(x) scanf("%d",&x) #define rdllt(x) scanf("%lld",&x) #define rdult(x) scanf("%lu",&x) #define rdlf(x) scanf("%lf",&x) #define rdstr(x) scanf("%s",x) typedef long long ll; typedef unsigned long long ull; typedef unsigned int U; #define ms(x) memset((x),0,sizeof(x)) const long long int mod = 1e9 + 7; #define Mod 1000000000 #define sq(x) (x)*(x) #define eps 1e-3 typedef pair<int, int> pii; #define pi acos(-1.0) //const int N = 1005; #define REP(i,n) for(int i=0;i<(n);i++) typedef pair<int, int> pii; inline ll rd() { ll x = 0; char c = getchar(); bool f = false; while (!isdigit(c)) { if (c == ‘-‘) f = true; c = getchar(); } while (isdigit(c)) { x = (x << 1) + (x << 3) + (c ^ 48); c = getchar(); } return f ? -x : x; } ll gcd(ll a, ll b) { return b == 0 ? a : gcd(b, a%b); } int sqr(int x) { return x * x; } /*ll ans; ll exgcd(ll a, ll b, ll &x, ll &y) { if (!b) { x = 1; y = 0; return a; } ans = exgcd(b, a%b, x, y); ll t = x; x = y; y = t - a / b * y; return ans; } */ int n; priority_queue<int, vector<int> >q1; priority_queue<int, vector<int>, greater<int> >q2; int main() { //ios::sync_with_stdio(0); rdint(n); int x; rdint(x); q1.push(x); cout << x << endl; for (int i = 2; i <= n; i++) { rdint(x); if (x > q1.top())q2.push(x); else q1.push(x); while (abs((int)q1.size() - (int)q2.size()) > 1) { if ((int)q1.size() > (int)q2.size()) { q2.push(q1.top()); q1.pop(); } else { q1.push(q2.top()); q2.pop(); } } if (i % 2) { if ((int)q1.size() > (int)q2.size()) { cout << q1.top() << endl; } else { cout << q2.top() << endl; } } } return 0; }
据,N≤100000N ≤ 100000N≤100000。
标签:for res algorithm cal open scan thml lib 表示
原文地址:https://www.cnblogs.com/zxyqzy/p/10262077.html