Submission #4020854


Source Code Expand

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;
 
#define fi first
#define se second
#define mp make_pair
#define pb push_back
 
typedef long long ll;
typedef pair<int,int> ii;
typedef vector<int> vi;
typedef unsigned long long ull;
typedef long double ld; 
typedef tree<ii, null_type, less<ii>, rb_tree_tag, tree_order_statistics_node_update> pbds;

int a[333333];

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n; cin>>n;
	for(int i=0;i<n;i++) 
	{
		cin>>a[i]; a[i]--;
	}
	a[n]=n; int mx=-1; bool dir=0; //dir=1 => all look left 
	for(int i=0;i<n;i++)
	{
		if(a[i]==i) continue;
		if(mx==-1)
		{
			mx=a[i];
			if(a[i+1]!=i+1){cout<<"No\n"; return 0;}
			i++;
		}
		else
		{
			if(a[i]>i)
			{
				if(dir){cout<<"No\n"; return 0;}
				if(a[i]<mx){cout<<"No\n"; return 0;}
				mx=a[i];
				if(a[i+1]!=i+1){cout<<"No\n"; return 0;}
				i++;
			}
			else
			{
				if(a[i-2]<i-2&&a[i-2]>a[i]){cout<<"No\n"; return 0;}
				dir=1;
				if(mx==i)
				{
					dir=0; mx=-1;
				}
			}
		}
	}
	if(mx!=-1){cout<<"No\n"; return 0;}
	cout<<"Yes\n";
}

Submission Info

Submission Time
Task F - Revenge of BBuBBBlesort!
User zscoder
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1222 Byte
Status WA
Exec Time 27 ms
Memory 1408 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 1200
Status
AC × 4
AC × 82
WA × 18
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt, s4.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, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, 65.txt, 66.txt, 67.txt, 68.txt, 69.txt, 70.txt, 71.txt, 72.txt, 73.txt, 74.txt, 75.txt, 76.txt, 77.txt, 78.txt, 79.txt, 80.txt, 81.txt, 82.txt, 83.txt, 84.txt, 85.txt, 86.txt, 87.txt, 88.txt, 89.txt, 90.txt, 91.txt, 92.txt, 93.txt, 94.txt, 95.txt, 96.txt, s1.txt, s2.txt, s3.txt, s4.txt
Case Name Status Exec Time Memory
01.txt AC 26 ms 1408 KB
02.txt AC 26 ms 1408 KB
03.txt AC 27 ms 1408 KB
04.txt AC 27 ms 1408 KB
05.txt AC 25 ms 1408 KB
06.txt WA 25 ms 1408 KB
07.txt AC 26 ms 1408 KB
08.txt WA 26 ms 1408 KB
09.txt AC 25 ms 1408 KB
10.txt AC 26 ms 1408 KB
11.txt AC 26 ms 1408 KB
12.txt AC 26 ms 1408 KB
13.txt AC 25 ms 1408 KB
14.txt WA 25 ms 1408 KB
15.txt WA 25 ms 1408 KB
16.txt AC 26 ms 1408 KB
17.txt AC 26 ms 1408 KB
18.txt WA 25 ms 1408 KB
19.txt AC 25 ms 1408 KB
20.txt AC 25 ms 1408 KB
21.txt AC 26 ms 1408 KB
22.txt AC 26 ms 1408 KB
23.txt WA 25 ms 1408 KB
24.txt WA 25 ms 1408 KB
25.txt AC 25 ms 1408 KB
26.txt WA 25 ms 1408 KB
27.txt AC 25 ms 1408 KB
28.txt AC 25 ms 1408 KB
29.txt AC 25 ms 1408 KB
30.txt AC 26 ms 1408 KB
31.txt AC 26 ms 1408 KB
32.txt AC 26 ms 1408 KB
33.txt AC 25 ms 1408 KB
34.txt AC 25 ms 1408 KB
35.txt WA 25 ms 1408 KB
36.txt AC 25 ms 1408 KB
37.txt AC 25 ms 1408 KB
38.txt AC 25 ms 1408 KB
39.txt AC 25 ms 1408 KB
40.txt AC 26 ms 1408 KB
41.txt AC 26 ms 1408 KB
42.txt AC 26 ms 1408 KB
43.txt AC 25 ms 1408 KB
44.txt AC 25 ms 1408 KB
45.txt AC 25 ms 1408 KB
46.txt AC 25 ms 1408 KB
47.txt WA 25 ms 1408 KB
48.txt AC 25 ms 1408 KB
49.txt WA 25 ms 1408 KB
50.txt AC 25 ms 1408 KB
51.txt AC 25 ms 1408 KB
52.txt AC 25 ms 1408 KB
53.txt AC 26 ms 1408 KB
54.txt AC 26 ms 1408 KB
55.txt AC 26 ms 1408 KB
56.txt AC 27 ms 1408 KB
57.txt AC 27 ms 1408 KB
58.txt AC 26 ms 1408 KB
59.txt AC 26 ms 1408 KB
60.txt AC 26 ms 1408 KB
61.txt AC 25 ms 1408 KB
62.txt AC 26 ms 1408 KB
63.txt AC 26 ms 1408 KB
64.txt WA 26 ms 1408 KB
65.txt AC 26 ms 1408 KB
66.txt AC 26 ms 1408 KB
67.txt AC 25 ms 1408 KB
68.txt AC 26 ms 1408 KB
69.txt AC 26 ms 1408 KB
70.txt AC 26 ms 1408 KB
71.txt AC 25 ms 1408 KB
72.txt AC 26 ms 1408 KB
73.txt AC 25 ms 1408 KB
74.txt AC 26 ms 1408 KB
75.txt AC 25 ms 1408 KB
76.txt AC 26 ms 1408 KB
77.txt AC 26 ms 1408 KB
78.txt AC 25 ms 1408 KB
79.txt AC 26 ms 1408 KB
80.txt AC 25 ms 1408 KB
81.txt AC 25 ms 1408 KB
82.txt WA 25 ms 1408 KB
83.txt WA 26 ms 1408 KB
84.txt WA 25 ms 1408 KB
85.txt WA 26 ms 1408 KB
86.txt AC 25 ms 1408 KB
87.txt WA 26 ms 1408 KB
88.txt AC 26 ms 1408 KB
89.txt AC 25 ms 1408 KB
90.txt AC 25 ms 1408 KB
91.txt AC 1 ms 256 KB
92.txt AC 1 ms 256 KB
93.txt AC 1 ms 256 KB
94.txt AC 1 ms 256 KB
95.txt AC 1 ms 256 KB
96.txt WA 1 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt AC 1 ms 256 KB
s4.txt AC 1 ms 256 KB