-
Notifications
You must be signed in to change notification settings - Fork 0
/
ninja2.cpp
64 lines (56 loc) · 1.19 KB
/
ninja2.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
#include <bits/stdc++.h>
using namespace std;
int main()
{
int t;
cin >> t;
while (t--)
{
int n;
cin >> n;
int input[n],count;
for (int i = 0; i < n; i++)
{
cin >> input[i];
count++;
}
int l = 0, r = n - 1, minimum = 1, maximum = n;
bool check = false;
while (r - l >= 3)
{
if (input[l] == minimum)
{
l++;
minimum++;
}
else if (input[l] == maximum)
{
l++;
maximum--;
}
if (input[r] == maximum)
{
r--;
maximum--;
}
else if (input[r] == minimum)
{
r--;
minimum++;
}
if (input[l] != maximum && input[r] != maximum && input[r] != minimum && input[l] != minimum)
{
check = 1;
break;
}
}
if (check)
{
cout << l + 1 << " " << r + 1 << endl;
}
else
{
cout << "-1" << endl;
}
}
}