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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int              long long int
  4. #define double           long double
  5. #define print(a)         for(auto x : a) cout << x << " "; cout << endl
  6.  
  7.  
  8. const int M = 1000000007;
  9. const int N = 3e5+9;
  10. const int INF = 2e9+1;
  11. const int LINF = 2000000000000000001;
  12.  
  13. inline int power(int a, int b, int mod=M) {
  14.     int x = 1;
  15.     a %= mod;
  16.     while (b) {
  17.         if (b & 1) x = (x * a) % mod; 
  18.         a = (a * a) % mod;
  19.         b >>= 1;
  20.     }
  21.     return x;
  22. }
  23.  
  24.  
  25. //_ ***************************** START Below *******************************
  26.  
  27. // 2
  28. // 8
  29. // 18 5 4 3 2 1 8 10
  30. // 6
  31. // 5 4 3 2 1 8
  32.  
  33.  
  34.  
  35. vector<int> a;
  36.  
  37. bool consistency1(int n){
  38. 	int count = 0;
  39.  
  40.  
  41. 	for(int j = 1; j<n-1; j++){
  42. 		int ct1 = 0;
  43. 		int i =j-1;
  44. 		while(i>=0){
  45. 			if(a[i] < a[j]) ct1++;
  46. 			i--;
  47. 		}
  48.  
  49. 		int ct2 = 0;
  50. 		int k =j+1;
  51.  
  52. 		while(k<n){
  53. 			if(a[j] < a[k]) ct2++;
  54. 			k++;
  55. 		}
  56.  
  57. 		count += ct1 * ct2;
  58. 	}
  59.  
  60. 	if(count == 0) return false;
  61. 	return true;
  62.  
  63. }
  64.  
  65.  
  66.  
  67.  
  68. bool consistency2(int n){
  69. 	int count = 0;
  70.  
  71. 	vector<int> prefixMin(n+1, INF);
  72. 	for(int i=0; i<n; i++){
  73. 		prefixMin[i+1] = min(prefixMin[i-1], a[i]);
  74. 	}
  75.  
  76. 	vector<int> sufixMax(n+1, -INF);
  77. 	for(int i=n-1; i>=0; i--){
  78. 		sufixMax[i] = max(sufixMax[i+1], a[i]);
  79. 	}
  80.  
  81. 	for(int j = 1; j<=n-2; j++){
  82. 		if(a[j] > prefixMin[j] && a[j] < sufixMax[j+1]) return true;;
  83.  
  84. 	}
  85.  
  86. 	return false;
  87.  
  88. }
  89.  
  90.  
  91.  
  92.  
  93.  
  94.  
  95.  
  96. bool consistency3(int n){
  97. 	int count = 0;
  98.  
  99. 	vector<int> sufixMax(n+1, -INF);
  100. 	for(int i=n-1; i>=0; i--){
  101. 		sufixMax[i] = max(sufixMax[i+1], a[i]);
  102. 	}
  103.  
  104. 	int mini = a[0];
  105. 	for(int j = 1; j<=n-2; j++){
  106. 		if(a[j] > mini && a[j] < sufixMax[j+1]) return true;;
  107.  
  108. 		mini = min(mini, a[j]);
  109. 	}
  110.  
  111. 	return false;
  112. }
  113.  
  114.  
  115.  
  116.  
  117.  
  118.  
  119.  
  120.  
  121.  
  122.  
  123.  
  124.  
  125.  
  126.  
  127.  
  128.  
  129.  
  130.  
  131.  
  132.  
  133.  
  134.  
  135.  
  136.  
  137. bool practice(int n){
  138.  
  139.  
  140.     return 0;
  141. }
  142.  
  143.  
  144.  
  145.  
  146.  
  147. void solve() {
  148.  
  149.     int n;
  150.     cin>> n;
  151.  
  152.     a.resize(n);
  153.     for(int i=0; i<n; i++) cin >> a[i];
  154.  
  155.     cout << consistency1(n) << " " << consistency2(n) << endl;
  156.  
  157.  
  158. }
  159.  
  160.  
  161.  
  162.  
  163.  
  164. int32_t main() {
  165.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  166.  
  167.     int t = 1;
  168.     cin >> t;
  169.     while (t--) {
  170.         solve();
  171.     }
  172.  
  173.     return 0;
  174. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
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2
8
18 5 4 3 2 1 8 10
6
5 4 3 2 1 8
stdout
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1 1
0 0
https://ideone.com/qzLBTJ
language:
C++14 (gcc 8.3)
created:
1 hour ago
visibility:
public

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