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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define f(i, x, n) for(int i = x; i < (int)(n); ++i)
  4. #define ll long long
  5. const int N = 1000005;
  6. int q, a[200001], c[200001];
  7. pair <int, int> b[200001];
  8. int main(){
  9. 	int n;
  10.     cin  >> q;
  11.     while(q--){
  12.     	cin >> n;
  13.     	for(int i = 1; i <= n; ++i){
  14.     		scanf("%d", &a[i]);
  15.     		b[i] = make_pair(a[i], i);
  16.     	}
  17.     	c[1] = 1;
  18.     	sort(b + 1, b + n + 1);
  19.     	int mn = 2000000, mx = 1;
  20.     	for(int i = 1; i <= n; ++i){
  21.     		mx = max(mx, b[i].second);
  22.     		mn = min(mn, b[i].second);
  23.     		if(mx - mn == i - 1){
  24.     			c[i] = 1;
  25.     		}
  26.     		else{
  27.     			c[i] = 0;
  28.     		}
  29.     	}
  30.     	for(int i = 1; i <= n; ++i){
  31.     		cout << c[i];
  32.     	}
  33.     	cout << endl;
  34.     }
  35.     return 0;}
  36.  
  37.  
Success #stdin #stdout 0s 4372KB
comments (?)
stdin
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3
6
4 5 1 3 2 6
5
5 3 1 2 4
4
1 4 3 2
stdout
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101011
11111
1001
https://ideone.com/pwlcr1
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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