| Task: | Sorting |
| Sender: | stephan |
| Submission time: | 2021-01-30 04:34:02 +0200 |
| Language: | C++ (C++11) |
| Status: | READY |
| Result: | 0 |
| group | verdict | score |
|---|---|---|
| #1 | WRONG ANSWER | 0 |
| #2 | WRONG ANSWER | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | WRONG ANSWER | 0.01 s | 1, 2 | details |
| #2 | WRONG ANSWER | 0.02 s | 2 | details |
| #3 | WRONG ANSWER | 0.01 s | 1, 2 | details |
| #4 | WRONG ANSWER | 0.01 s | 1, 2 | details |
Compiler report
input/code.cpp: In function 'int main()':
input/code.cpp:34:7: warning: unused variable 'op' [-Wunused-variable]
int op=0;
^~Code
///By Stephan Ramirez dsramirezc@unal.edu.co
#include<bits/stdc++.h>
#define ms(a,v) memset(a,v,sizeof a)
#define ll long long
#define N 105
#define MAXN 20004
using namespace std;
int T;
int n;
int arr[N];
int pos[N];
void sw(int x,int y){
swap(arr[x],arr[y]);
swap(arr[x+1],arr[y+1]);
pos[arr[x]]=x;
pos[arr[x+1]]=x+1;
pos[arr[y]]=y;
pos[arr[y+1]]=y+1;
}
int main(){
ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#ifdef LOCAL
freopen("in.txt","r",stdin);
//freopen("out.txt","w",stdout) ;
#endif
cin>>T;
while(T--){
cin>>n;
for(int i=0;i<n;i++){
cin>>arr[i];
arr[i]--;
pos[arr[i]]=i;
}
int op=0;
for(int j=0;j<n+n;j++){
for(int i=0;i<n;i++){
if(pos[i]==i)
continue;
if(pos[i]==i+1){
if(i+3<n-1){
sw(i+1,i+3);
i--;
continue;
}
sw(i,0);
break;
}
if(pos[i]==n-1){
sw(n-2,0);
break;
}
sw(pos[i],i);
}
}
bool f=true;
for(int i=0;i<n;i++){
if(pos[i]!=i)
f=false;
}
if(f)
cout<<"YES\n";
else
cout<<"NO\n";
}
return 0;
}
Test details
Test 1
Group: 1, 2
Verdict: WRONG ANSWER
| input |
|---|
| 153 1 1 2 1 2 ... |
| correct output |
|---|
| YES YES NO NO NO ... |
| user output |
|---|
| YES YES NO NO NO ... Truncated |
Test 2
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 1000 59 35 29 32 50 11 15 9 21 19 45 2... |
| correct output |
|---|
| YES NO YES NO YES ... |
| user output |
|---|
| NO NO NO NO NO ... Truncated |
Test 3
Group: 1, 2
Verdict: WRONG ANSWER
| input |
|---|
| 720 6 1 6 4 5 2 3 6 6 3 2 1 5 4 ... |
| correct output |
|---|
| YES NO NO NO YES ... |
| user output |
|---|
| NO NO NO NO NO ... Truncated |
Test 4
Group: 1, 2
Verdict: WRONG ANSWER
| input |
|---|
| 1000 8 7 4 2 8 6 3 5 1 8 3 8 2 7 5 4 6 1 ... |
| correct output |
|---|
| NO NO YES NO YES ... |
| user output |
|---|
| NO NO NO NO NO ... Truncated |