fork download
copy 
  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <cmath>
  5. #include <climits>
  6. #include <iomanip>
  7. #include <vector>
  8. #include <stack>
  9. #include <queue>
  10.  
  11. using namespace std;
  12. // P.Moriarty //
  13. #define AAD ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr);
  14. long long fac(int n)
  15. {
  16. 	long long fact = 1;
  17. 	for (int i = 1;i <= n;i++)
  18. 	{
  19. 		fact *= i;
  20. 	}
  21. 	return fact;
  22. }
  23. long long per(int n, int j)
  24. {
  25. 	long long p = 1;
  26. 	for (int i = n; i > n - j; i--)
  27. 	{
  28. 		p *= i;
  29. 	}
  30. 	return p;
  31. }
  32. bool lucky(int ch)
  33. {
  34. 	bool l = true;
  35.  
  36. 	while (ch > 0)
  37. 	{
  38. 		int d = ch % 10;
  39. 		if (d == 7 || d == 4)
  40. 		{
  41. 			ch /= 10;
  42. 		}
  43. 		else
  44. 		{
  45. 			l = false;
  46. 			break;
  47. 		}
  48. 	}
  49.  
  50. 	return l;
  51.  
  52. }
  53. int pro(int x, int i)
  54. {
  55. 	int r = 1;
  56. 	for (int j = 1;j <= i;j++)
  57. 	{
  58. 		r *= x;
  59. 	}
  60. 	return r;
  61. }
  62.  
  63. bool prime(int x) {
  64. 	if (x <= 1) return false;
  65. 	if (x == 2 || x == 3) return true;
  66. 	if (x % 2 == 0 || x % 3 == 0) return false;
  67.  
  68. 	for (int i = 5; i <= sqrt(x); i += 6) {
  69. 		if (x % i == 0 || x % (i + 2) == 0) return false;
  70. 	}
  71.  
  72. 	return true;
  73. }
  74.  
  75. int f(string a, string b)
  76. {
  77. 	int c = 0;
  78. 	for (int i = 0;i < a.size();i++)
  79. 	{
  80. 		if (a[i] == b[i])
  81. 			c++;
  82. 	}
  83. 	return c;
  84. }
  85.  
  86. int main()
  87. {
  88. 	AAD;
  89. 	vector<string>q;
  90. 	int n;
  91. 	cin >> n;
  92. 	bool ch = true;
  93. 	for(int i=0;i<n;i++)
  94. 	{        
  95. 		string x;
  96. 		cin >> x;
  97. 		if (i == 0)
  98. 			q.push_back(x);
  99. 		else
  100. 		{
  101. 			string a = q[q.size() - 1];
  102. 			if (x[0] == 'E' && a[0] == x[3])
  103. 			{
  104. 				q.pop_back();
  105. 			}
  106. 			else
  107. 			{
  108. 				if (x[0] == 'E' && a[0] != x[3])
  109. 				{
  110. 					ch = false;
  111. 					break;
  112. 				}
  113. 				else
  114. 					q.push_back(x);
  115.  
  116. 			}
  117.  
  118. 		}
  119.  
  120. 	}
  121. 	if (q.size() == 0&&ch==true)
  122. 		cout << "ACC";
  123. 	else
  124. 		cout << "WA";
  125.  
  126.  
  127. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
WA
https://ideone.com/26sNuW
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!