Submission #1781409
Source Code Expand
#include"bits/stdc++.h" #define PB push_back #define PF push_front #define LB lower_bound #define UB upper_bound #define fr(x) freopen(x,"r",stdin) #define fw(x) freopen(x,"w",stdout) #define iout(x) printf("%d\n",x) #define lout(x) printf("%lld\n",x) #define REP(x,l,u) for(ll x = (l);x<=(u);x++) #define RREP(x,l,u) for(ll x = (l);x>=(u);x--) #define mst(x,a) memset(x,a,sizeof(x)) #define PII pair<int,int> #define PLL pair<ll,ll> #define MP make_pair #define se second #define fi first #define dbg(x) cout<<#x<<" = "<<(x)<<endl; #define sz(x) ((int)x.size()) #define cl(x) x.clear() typedef long long ll; typedef unsigned long long ull; typedef double db; typedef long double ld; using namespace std; const int maxn = 100010; const int mod = 1e9+7; const int MAX = 1000000010; const double eps = 1e-6; const double PI = acos(-1); template<typename T> inline void read(T &x){ x=0;T f=1;char ch;do{ch=getchar();if(ch=='-')f=-1;}while(ch<'0'||ch>'9');do x=x*10+ch-'0',ch=getchar();while(ch<='9'&&ch>='0');x*=f; } template<typename A,typename B> inline void read(A&x,B&y){read(x);read(y);} template<typename A,typename B,typename C> inline void read(A&x,B&y,C&z){read(x);read(y);read(z);} template<typename A,typename B,typename C,typename D> inline void read(A&x,B&y,C&z,D&w){read(x);read(y);read(z);read(w);} template<typename A,typename B> inline A fexp(A x,B p){A ans=1;for(;p;p>>=1,x=1LL*x*x%mod)if(p&1)ans=1LL*ans*x%mod;return ans;} template<typename A,typename B> inline A fexp(A x,B p,A mo){A ans=1;for(;p;p>>=1,x=1LL*x*x%mo)if(p&1)ans=1LL*ans*x%mo;return ans;} int n; int A[maxn<<1],B[maxn<<1]; bool check(int M){ REP(i,1,n*2-1)B[i]=A[i]<=M; REP(i,1,n){ if(B[n-i]==B[n-i+1])return B[n-i]; if(B[n+i]==B[n+i-1])return B[n+i]; } return B[1]; } void Work(){ int l=1,r=n*2-1; while(l<r){ int M=l+r>>1; if(check(M))r=M;else l=M+1; } iout(l); } void Init(){ read(n); REP(i,1,n*2-1)read(A[i]); } int main(){ Init(); Work(); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Median Pyramid Hard |
User | yanQval |
Language | C++14 (GCC 5.4.1) |
Score | 1300 |
Code Size | 2048 Byte |
Status | AC |
Exec Time | 16 ms |
Memory | 1792 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1300 / 1300 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt |
All | 0_00.txt, 0_01.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 1 ms | 256 KB |
0_01.txt | AC | 1 ms | 256 KB |
1_00.txt | AC | 1 ms | 256 KB |
1_01.txt | AC | 1 ms | 256 KB |
1_02.txt | AC | 1 ms | 256 KB |
1_03.txt | AC | 14 ms | 1792 KB |
1_04.txt | AC | 14 ms | 1792 KB |
1_05.txt | AC | 15 ms | 1792 KB |
1_06.txt | AC | 15 ms | 1792 KB |
1_07.txt | AC | 16 ms | 1792 KB |
1_08.txt | AC | 15 ms | 1792 KB |
1_09.txt | AC | 14 ms | 1792 KB |
1_10.txt | AC | 14 ms | 1792 KB |
1_11.txt | AC | 16 ms | 1792 KB |
1_12.txt | AC | 15 ms | 1792 KB |
1_13.txt | AC | 15 ms | 1792 KB |
1_14.txt | AC | 15 ms | 1792 KB |
1_15.txt | AC | 15 ms | 1792 KB |
1_16.txt | AC | 15 ms | 1792 KB |
1_17.txt | AC | 15 ms | 1792 KB |
1_18.txt | AC | 15 ms | 1792 KB |
1_19.txt | AC | 14 ms | 1792 KB |
1_20.txt | AC | 14 ms | 1792 KB |
1_21.txt | AC | 14 ms | 1792 KB |
1_22.txt | AC | 14 ms | 1792 KB |
1_23.txt | AC | 15 ms | 1792 KB |
1_24.txt | AC | 15 ms | 1792 KB |
1_25.txt | AC | 15 ms | 1792 KB |
1_26.txt | AC | 15 ms | 1792 KB |
1_27.txt | AC | 15 ms | 1792 KB |
1_28.txt | AC | 15 ms | 1792 KB |
1_29.txt | AC | 14 ms | 1792 KB |
1_30.txt | AC | 15 ms | 1792 KB |
1_31.txt | AC | 15 ms | 1792 KB |
1_32.txt | AC | 15 ms | 1792 KB |
1_33.txt | AC | 15 ms | 1792 KB |
1_34.txt | AC | 15 ms | 1792 KB |
1_35.txt | AC | 15 ms | 1792 KB |
1_36.txt | AC | 15 ms | 1792 KB |
1_37.txt | AC | 15 ms | 1792 KB |
1_38.txt | AC | 15 ms | 1792 KB |
1_39.txt | AC | 15 ms | 1792 KB |
1_40.txt | AC | 15 ms | 1792 KB |
1_41.txt | AC | 15 ms | 1792 KB |
1_42.txt | AC | 15 ms | 1792 KB |
1_43.txt | AC | 16 ms | 1792 KB |
1_44.txt | AC | 15 ms | 1792 KB |
1_45.txt | AC | 14 ms | 1792 KB |
1_46.txt | AC | 16 ms | 1792 KB |
1_47.txt | AC | 15 ms | 1792 KB |
1_48.txt | AC | 15 ms | 1792 KB |
1_49.txt | AC | 15 ms | 1792 KB |
1_50.txt | AC | 15 ms | 1792 KB |
1_51.txt | AC | 14 ms | 1792 KB |
1_52.txt | AC | 15 ms | 1792 KB |
1_53.txt | AC | 15 ms | 1792 KB |
1_54.txt | AC | 15 ms | 1792 KB |