Submission #1304714
Source Code Expand
#include <stdio.h> #include <vector> int main() { int n; scanf("%d", &n); if (n == 1) { return printf("0\n"), 0; } std::vector<int> p(n + 1), q(n + 1), t(n + 1), f(n + 1); for (int i = 1; i <= n; ++ i) { scanf("%d", &p[i]); q[p[i]] = i; } for (int i = n - 1; i >= 1; -- i) { if (t[i + 1] == 0) { if (q[i] > q[i + 1]) { t[i] = 1; f[i] = i + 1; } else { t[i] = 0; } } else { if (q[f[i + 1]] < q[i] && q[i] < q[i + 1] || q[i + 1] < q[f[i + 1]] && q[f[i + 1]] < q[i] || q[i] < q[i + 1] && q[i + 1] < q[f[i + 1]]) { t[i] = t[i + 1]; f[i] = f[i + 1]; } else { t[i] = t[i + 1] + 1; f[i] = i + 1; } } } printf("%d\n", t[1]); }
Submission Info
Submission Time | |
---|---|
Task | F - Strange Sorting |
User | Nero |
Language | C++14 (GCC 5.4.1) |
Score | 2400 |
Code Size | 969 Byte |
Status | AC |
Exec Time | 25 ms |
Memory | 3328 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:7:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:13:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &p[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 2400 / 2400 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 25 ms | 3328 KB |
in10.txt | AC | 25 ms | 3328 KB |
in11.txt | AC | 25 ms | 3328 KB |
in12.txt | AC | 25 ms | 3328 KB |
in13.txt | AC | 25 ms | 3328 KB |
in14.txt | AC | 25 ms | 3328 KB |
in15.txt | AC | 25 ms | 3328 KB |
in16.txt | AC | 25 ms | 3328 KB |
in17.txt | AC | 25 ms | 3328 KB |
in18.txt | AC | 25 ms | 3328 KB |
in19.txt | AC | 25 ms | 3328 KB |
in2.txt | AC | 25 ms | 3328 KB |
in20.txt | AC | 25 ms | 3328 KB |
in21.txt | AC | 21 ms | 3328 KB |
in22.txt | AC | 21 ms | 3328 KB |
in23.txt | AC | 1 ms | 256 KB |
in3.txt | AC | 25 ms | 3328 KB |
in4.txt | AC | 25 ms | 3328 KB |
in5.txt | AC | 25 ms | 3328 KB |
in6.txt | AC | 25 ms | 3328 KB |
in7.txt | AC | 25 ms | 3328 KB |
in8.txt | AC | 25 ms | 3328 KB |
in9.txt | AC | 25 ms | 3328 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |