Submission #4260930
Source Code Expand
#include<cstdio> #include<iostream> #include<algorithm> using namespace std; struct Node{ int value; int devid; int index; } arr[100050]; bool comp1(const Node &A,const Node &B) { return A.value<B.value; } bool comp2(const Node &A,const Node &B) { return A.index < B.index; } int main() { int N; scanf("%d",&N); for(int i=1;i<=N;++i) { scanf("%d",&arr[i].value); arr[i].index=i; } sort(arr+1,arr+N+1,comp1); for(int i=1;i<=N;++i) { arr[i].devid=i; } sort(arr+1,arr+N+1,comp2); int B[100050]; for(int i=1;i<=N;++i) { B[i]=arr[i].devid; } int cnt=0; for(int i=1;i<=N;++i) { if(B[i]%2!=i%2) { cnt++; } } printf("%d",cnt/2); return 0; }
Submission Info
Submission Time | |
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Task | C - BBuBBBlesort! |
User | vjudge4 |
Language | C++14 (Clang 3.8.0) |
Score | 600 |
Code Size | 674 Byte |
Status | AC |
Exec Time | 32 ms |
Memory | 1792 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 600 / 600 | ||||
Status |
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Set Name | Test Cases |
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Sample | s1.txt, s2.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, s1.txt, s2.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 32 ms | 1792 KB |
02.txt | AC | 32 ms | 1792 KB |
03.txt | AC | 32 ms | 1792 KB |
04.txt | AC | 32 ms | 1792 KB |
05.txt | AC | 30 ms | 1792 KB |
06.txt | AC | 30 ms | 1792 KB |
07.txt | AC | 30 ms | 1792 KB |
08.txt | AC | 13 ms | 1792 KB |
09.txt | AC | 13 ms | 1792 KB |
10.txt | AC | 14 ms | 1792 KB |
11.txt | AC | 14 ms | 1792 KB |
12.txt | AC | 19 ms | 1792 KB |
13.txt | AC | 19 ms | 1792 KB |
14.txt | AC | 30 ms | 1792 KB |
15.txt | AC | 30 ms | 1792 KB |
16.txt | AC | 30 ms | 1792 KB |
17.txt | AC | 30 ms | 1792 KB |
18.txt | AC | 1 ms | 256 KB |
19.txt | AC | 1 ms | 256 KB |
20.txt | AC | 1 ms | 256 KB |
21.txt | AC | 1 ms | 256 KB |
22.txt | AC | 1 ms | 256 KB |
s1.txt | AC | 1 ms | 256 KB |
s2.txt | AC | 1 ms | 256 KB |