Submission #1755050
Source Code Expand
// Median Pyramid Hard // * frank_c1 // * 2017 / 11 / 09 #include <bits/stdc++.h> using namespace std; const int maxn = (int)(2e5) + 5; int a[maxn], b[maxn]; int n; bool chk(int x) { for (int i = 1; i <= 2 * n - 1; ++i) b[i] = (a[i] >= x); if (b[n] == b[n - 1] || b[n] == b[n + 1]) return b[n]; int l = n, r = n, c = n; while (l > 1 && b[l] != b[l - 1]) --l; while (r < 2 * n - 1 && b[r] != b[r + 1]) ++r; if (b[l] == b[r]) return b[l]; return n - l > r - n ? b[l] : b[r]; } int main() { scanf("%d", &n); for (int i = 1; i <= 2 * n - 1; ++i) scanf("%d", &a[i]); int l = 1, r = 2 * n - 1; while (l < r) { int mid = (l + r) >> 1; if (chk(mid + 1)) l = mid + 1; else r = mid; } return printf("%d\n", l), 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Median Pyramid Hard |
User | frank_c1 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 761 Byte |
Status | WA |
Exec Time | 27 ms |
Memory | 1792 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:23:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:24:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= 2 * n - 1; ++i) scanf("%d", &a[i]); ^
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 | 23 ms | 1792 KB |
1_04.txt | AC | 23 ms | 1792 KB |
1_05.txt | WA | 25 ms | 1792 KB |
1_06.txt | WA | 24 ms | 1792 KB |
1_07.txt | WA | 24 ms | 1792 KB |
1_08.txt | WA | 24 ms | 1792 KB |
1_09.txt | AC | 23 ms | 1792 KB |
1_10.txt | AC | 23 ms | 1792 KB |
1_11.txt | WA | 23 ms | 1792 KB |
1_12.txt | WA | 24 ms | 1792 KB |
1_13.txt | WA | 23 ms | 1792 KB |
1_14.txt | WA | 24 ms | 1792 KB |
1_15.txt | AC | 24 ms | 1792 KB |
1_16.txt | WA | 24 ms | 1792 KB |
1_17.txt | AC | 24 ms | 1792 KB |
1_18.txt | WA | 24 ms | 1792 KB |
1_19.txt | WA | 23 ms | 1792 KB |
1_20.txt | WA | 23 ms | 1792 KB |
1_21.txt | WA | 24 ms | 1792 KB |
1_22.txt | WA | 24 ms | 1792 KB |
1_23.txt | WA | 25 ms | 1792 KB |
1_24.txt | WA | 25 ms | 1792 KB |
1_25.txt | WA | 24 ms | 1792 KB |
1_26.txt | WA | 25 ms | 1792 KB |
1_27.txt | WA | 24 ms | 1792 KB |
1_28.txt | WA | 25 ms | 1792 KB |
1_29.txt | WA | 24 ms | 1792 KB |
1_30.txt | WA | 24 ms | 1792 KB |
1_31.txt | WA | 25 ms | 1792 KB |
1_32.txt | WA | 25 ms | 1792 KB |
1_33.txt | WA | 24 ms | 1792 KB |
1_34.txt | WA | 24 ms | 1792 KB |
1_35.txt | WA | 25 ms | 1792 KB |
1_36.txt | WA | 24 ms | 1792 KB |
1_37.txt | WA | 24 ms | 1792 KB |
1_38.txt | WA | 25 ms | 1792 KB |
1_39.txt | WA | 25 ms | 1792 KB |
1_40.txt | WA | 24 ms | 1792 KB |
1_41.txt | WA | 25 ms | 1792 KB |
1_42.txt | WA | 24 ms | 1792 KB |
1_43.txt | WA | 25 ms | 1792 KB |
1_44.txt | WA | 25 ms | 1792 KB |
1_45.txt | WA | 25 ms | 1792 KB |
1_46.txt | WA | 25 ms | 1792 KB |
1_47.txt | AC | 24 ms | 1792 KB |
1_48.txt | WA | 24 ms | 1792 KB |
1_49.txt | AC | 24 ms | 1792 KB |
1_50.txt | AC | 24 ms | 1792 KB |
1_51.txt | AC | 23 ms | 1792 KB |
1_52.txt | AC | 24 ms | 1792 KB |
1_53.txt | WA | 24 ms | 1792 KB |
1_54.txt | AC | 27 ms | 1792 KB |