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  1. /*"The Woods are lovely dark and deep,
  2. But i have promises to keep,
  3. Miles to go before i sleep and Miles to go before i Sleep"
  4. */
  5. #include<stdio.h>
  6. #include<set>
  7. #include<iostream>
  8. #include<stack>
  9. #include<math.h>
  10. #include<vector>
  11. #include<string.h>
  12. #include<algorithm>
  13. #define pb(n) push_front(n)
  14. #define M(ch) memset(ch,0,sizeof(ch))
  15. unsigned long long mod=1000000007;
  16. using namespace std;
  17. char ch[1000009];
  18. int t;
  19. int check[1000009];
  20.  int main()
  21.  {
  22. 	char replace[100][2];
  23. 	cin>>t;
  24.  	while(t--)
  25. 	{
  26.  		M(ch);
  27.  		M(replace);
  28.  		M(check);
  29. 		int pos,n,len,flag;
  30. 		flag=0;
  31. 		cin>>n;
  32. 		for(int i=0;i<n;i++)
  33. 		{
  34. 			cin>>replace[i][0];
  35. 			cin>>replace[i][1];
  36. 		}
  37. 		cin>>ch;
  38. 		len=strlen(ch);
  39. 		if(n)
  40. 		{
  41. 			for(int i=0;i<len;i++)
  42. 			{
  43.  
  44. 				for(int j=0;j<n;j++)
  45. 				{
  46.  
  47. 					if((ch[i]==replace[j][0])and(check[i]==0))
  48. 					{
  49. 						ch[i]=replace[j][1];
  50. 						check[i]=1;
  51. 						//if(replace[j][i]=='.')
  52. 							//flag=1;
  53. 						//break;
  54.  
  55. 					}
  56. 				}	
  57.  
  58. 			}	
  59.  
  60. 		}
  61. 		int count=0;
  62.  		char *ptr=NULL;
  63.  		ptr=strchr(ch,'.');		
  64. 		if(ptr!=NULL)
  65. 		{
  66. 			pos=ptr-&ch[0];		//POSITION AT WHICH THE ' . ' IS PRESENT
  67. 			//cout<<"Point found at "<<pos<<endl;
  68. 			for(int i=len-1;i>=pos;i--)
  69. 			{
  70. 				if(ch[i]!='0')
  71. 				{
  72. 					//flag=1;
  73. 					break;
  74. 				}
  75. 				else if(ch[i]=='0')
  76. 					{
  77. 						count++;
  78. 						ch[i]='\0';
  79. 					}
  80. 			}
  81. 		if(count+1==len-pos)
  82. 			ch[pos]=0;
  83. 		}
  84.  
  85. 		//cout<<"Count="<<count<<endl<<"Len-pos="<<len-pos<<endl;
  86.  
  87.  
  88. 		//if(flag)
  89. 		{
  90. 			/*int tmp=len-1;
  91. 			for(tmp;ch[tmp]=='0';)
  92. 				{
  93. 					ch[tmp]=0;
  94. 					tmp-=1;	
  95. 				}*/
  96. 			int tmp=0;
  97. 			for(tmp=0;ch[tmp]=='0';)
  98. 				{
  99. 					tmp++;
  100.  
  101. 				}
  102. 			char *q=&ch[tmp];
  103. 			if(ch[tmp]!=0)
  104. 				cout<<q<<endl;
  105. 			else
  106. 				cout<<"0\n"; 
  107.  
  108. 		}
  109.  
  110. 		/*else
  111. 		{
  112. 			double  ans;
  113. 			//cout<<ch<<endl;
  114. 			ans=atof(ch);
  115. 			cout<<ans<<endl;
  116. 		}/*
  117.  /*/
  118. 	}
  119.  //system("pause");
  120. 	return 0;
  121. }
Success #stdin #stdout 0s 8180KB
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https://ideone.com/lhS051
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
secret

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