Submission #1408114
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define MAX 100002 int n; vector<int> v; vector<int> ar; vector<int> cer; bool ok(int val){ ar.clear(); for (int i = 0; i < v.size(); i++){ ar.push_back(v[i] >= val); } cer.assign(ar.size(), 0); for (int i = 0; i < ar.size(); i++){ if (ar[i]){ if (i&&ar[i - 1]){ cer[i] = ar[i]; } if (i + 1 < ar.size() && ar[i + 1]){ cer[i] = ar[i]; } } } int u = n-1; if (cer[u]){ return true; } int lef = 0; for (int i = 0; i < u; i++){ if (cer[i]){ lef = i + 1; } } int rig = ar.size() - 1; for (int i = ar.size() - 1; i > u; i--){ if (cer[i]){ rig = i-1; } } int L, R; L = u-1; R = u+1; if (n % 2 == 0){ for (int i = 0; i < n/2; i++){ if (L >= lef){ cer[L] = true; } if (R <= rig){ cer[R] = true; } L -= 2; R += 2; } L += 2; R -= 2; } else{ L = R = u; for (int i = 0; i <= n / 2; i++){ if (L >= lef){ cer[L] = true; } if (R <= rig){ cer[R] = true; } L -= 2; R += 2; } L += 2; R -= 2; } L = max(L, lef); R = min(R, rig); for (int i = L; i <= R; i++){ if (cer[i] != ar[i])return false; } return true; } int main(){ cin >> n; for (int i = 0; i < 2 * n - 1; i++){ int a; scanf("%d", &a); v.push_back(a); } int u = n-1; int mint = max(min(v[u], v[u - 1]), min(v[u], v[u + 1])); int maxt = *max_element(v.begin(), v.end()); while (mint + 1 < maxt){ int mid = (mint + maxt) >> 1; if (ok(mid)){ mint = mid; } else{ maxt = mid - 1; } } if (ok(maxt)){ cout << maxt << endl; } else{ cout << mint << endl; } return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Median Pyramid Hard |
User | Kmcode |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1732 Byte |
Status | WA |
Exec Time | 52 ms |
Memory | 2676 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:87:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a); ^
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 | 35 ms | 2676 KB |
1_04.txt | AC | 35 ms | 2676 KB |
1_05.txt | WA | 37 ms | 2676 KB |
1_06.txt | AC | 39 ms | 2676 KB |
1_07.txt | WA | 37 ms | 2676 KB |
1_08.txt | AC | 38 ms | 2676 KB |
1_09.txt | AC | 35 ms | 2676 KB |
1_10.txt | AC | 35 ms | 2676 KB |
1_11.txt | WA | 37 ms | 2676 KB |
1_12.txt | AC | 39 ms | 2676 KB |
1_13.txt | WA | 37 ms | 2676 KB |
1_14.txt | AC | 39 ms | 2676 KB |
1_15.txt | AC | 34 ms | 2676 KB |
1_16.txt | WA | 44 ms | 2676 KB |
1_17.txt | AC | 44 ms | 2676 KB |
1_18.txt | WA | 46 ms | 2676 KB |
1_19.txt | WA | 40 ms | 2676 KB |
1_20.txt | AC | 38 ms | 2676 KB |
1_21.txt | WA | 44 ms | 2676 KB |
1_22.txt | WA | 37 ms | 2676 KB |
1_23.txt | WA | 42 ms | 2676 KB |
1_24.txt | WA | 40 ms | 2676 KB |
1_25.txt | WA | 40 ms | 2676 KB |
1_26.txt | WA | 39 ms | 2676 KB |
1_27.txt | WA | 40 ms | 2676 KB |
1_28.txt | WA | 39 ms | 2676 KB |
1_29.txt | WA | 44 ms | 2676 KB |
1_30.txt | WA | 40 ms | 2676 KB |
1_31.txt | WA | 40 ms | 2676 KB |
1_32.txt | WA | 41 ms | 2676 KB |
1_33.txt | WA | 39 ms | 2676 KB |
1_34.txt | AC | 39 ms | 2676 KB |
1_35.txt | WA | 41 ms | 2676 KB |
1_36.txt | WA | 41 ms | 2676 KB |
1_37.txt | WA | 39 ms | 2676 KB |
1_38.txt | WA | 39 ms | 2676 KB |
1_39.txt | WA | 40 ms | 2676 KB |
1_40.txt | WA | 44 ms | 2676 KB |
1_41.txt | WA | 44 ms | 2676 KB |
1_42.txt | WA | 41 ms | 2676 KB |
1_43.txt | WA | 42 ms | 2676 KB |
1_44.txt | WA | 46 ms | 2676 KB |
1_45.txt | WA | 42 ms | 2676 KB |
1_46.txt | WA | 42 ms | 2676 KB |
1_47.txt | AC | 46 ms | 2676 KB |
1_48.txt | WA | 47 ms | 2676 KB |
1_49.txt | AC | 44 ms | 2676 KB |
1_50.txt | WA | 46 ms | 2676 KB |
1_51.txt | AC | 46 ms | 2676 KB |
1_52.txt | AC | 48 ms | 2676 KB |
1_53.txt | AC | 47 ms | 2676 KB |
1_54.txt | AC | 52 ms | 2676 KB |