Submission #958795
Source Code Expand
#include <bits/stdc++.h> using namespace std; typedef long long ll; #define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i)) #define each(itr,c) for(__typeof(c.begin()) itr=c.begin(); itr!=c.end(); ++itr) #define all(x) (x).begin(),(x).end() #define pb push_back #define fi first #define se second bool check(vector<int> &x) { int m=x.size(); bool alternate=true; rep(i,m-1) if(x[i]==x[i+1]) alternate=false; if(alternate) return x[0]==1; for(int i=m/2; i<m-1; ++i) { if(x[i]==x[i+1]) return x[i]==1; int j=m/2-(i-m/2); if(x[j]==x[j-1]) return x[j]==1; } return false; } int main() { int n; scanf(" %d", &n); int m=2*n-1; vector<int> a(m); rep(i,m) scanf(" %d", &a[i]); int l=1, r=m+1; while(r-l>1) { int mid=(l+r)/2; vector<int> t(m,0); rep(i,m) if(a[i]>=mid) t[i]=1; if(check(t)) l=mid; else r=mid; } printf("%d\n", l); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Median Pyramid Hard |
User | imulan |
Language | C++14 (GCC 5.4.1) |
Score | 1300 |
Code Size | 1026 Byte |
Status | AC |
Exec Time | 44 ms |
Memory | 1920 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:34:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf(" %d", &n); ^ ./Main.cpp:37:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] rep(i,m) scanf(" %d", &a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1300 / 1300 | ||||
Status |
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|
Set Name | Test Cases |
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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 | 3 ms | 256 KB |
0_01.txt | AC | 3 ms | 256 KB |
1_00.txt | AC | 2 ms | 256 KB |
1_01.txt | AC | 3 ms | 256 KB |
1_02.txt | AC | 3 ms | 256 KB |
1_03.txt | AC | 31 ms | 1792 KB |
1_04.txt | AC | 30 ms | 1792 KB |
1_05.txt | AC | 32 ms | 1792 KB |
1_06.txt | AC | 31 ms | 1792 KB |
1_07.txt | AC | 32 ms | 1792 KB |
1_08.txt | AC | 32 ms | 1792 KB |
1_09.txt | AC | 30 ms | 1792 KB |
1_10.txt | AC | 30 ms | 1792 KB |
1_11.txt | AC | 31 ms | 1792 KB |
1_12.txt | AC | 31 ms | 1792 KB |
1_13.txt | AC | 33 ms | 1792 KB |
1_14.txt | AC | 31 ms | 1792 KB |
1_15.txt | AC | 34 ms | 1792 KB |
1_16.txt | AC | 39 ms | 1792 KB |
1_17.txt | AC | 39 ms | 1792 KB |
1_18.txt | AC | 39 ms | 1792 KB |
1_19.txt | AC | 31 ms | 1792 KB |
1_20.txt | AC | 30 ms | 1792 KB |
1_21.txt | AC | 31 ms | 1792 KB |
1_22.txt | AC | 31 ms | 1792 KB |
1_23.txt | AC | 33 ms | 1792 KB |
1_24.txt | AC | 33 ms | 1792 KB |
1_25.txt | AC | 37 ms | 1792 KB |
1_26.txt | AC | 32 ms | 1800 KB |
1_27.txt | AC | 39 ms | 1792 KB |
1_28.txt | AC | 33 ms | 1792 KB |
1_29.txt | AC | 31 ms | 1792 KB |
1_30.txt | AC | 32 ms | 1792 KB |
1_31.txt | AC | 32 ms | 1796 KB |
1_32.txt | AC | 36 ms | 1792 KB |
1_33.txt | AC | 31 ms | 1792 KB |
1_34.txt | AC | 32 ms | 1796 KB |
1_35.txt | AC | 34 ms | 1792 KB |
1_36.txt | AC | 34 ms | 1792 KB |
1_37.txt | AC | 37 ms | 1792 KB |
1_38.txt | AC | 33 ms | 1792 KB |
1_39.txt | AC | 37 ms | 1792 KB |
1_40.txt | AC | 36 ms | 1792 KB |
1_41.txt | AC | 32 ms | 1792 KB |
1_42.txt | AC | 36 ms | 1792 KB |
1_43.txt | AC | 34 ms | 1920 KB |
1_44.txt | AC | 37 ms | 1792 KB |
1_45.txt | AC | 31 ms | 1792 KB |
1_46.txt | AC | 35 ms | 1792 KB |
1_47.txt | AC | 37 ms | 1792 KB |
1_48.txt | AC | 44 ms | 1792 KB |
1_49.txt | AC | 34 ms | 1792 KB |
1_50.txt | AC | 43 ms | 1792 KB |
1_51.txt | AC | 38 ms | 1804 KB |
1_52.txt | AC | 40 ms | 1792 KB |
1_53.txt | AC | 41 ms | 1792 KB |
1_54.txt | AC | 43 ms | 1792 KB |