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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <vector>
  4. #include <map>
  5. #include <cmath>
  6. using namespace std;
  7. string a = "send";
  8. string b = "more";
  9. string c = "money";
  10.  
  11. bool satisfyCondition(map <char, int> assigned){
  12. 	if(assigned[a[0]] == 0 || assigned[b[0]] == 0 || assigned[c[0]] == 0)	return 0;
  13. 	int stringA = 0;
  14. 	int stringB = 0;
  15. 	int stringC = 0;
  16.  
  17. 	for(int i = 0; i< a.length(); i++){
  18. 		stringA = stringA*10 + assigned[a[i]];
  19. 	}
  20. 	for(int i = 0; i< b.length(); i++){
  21. 		stringB = stringB*10 + assigned[b[i]];
  22. 	}
  23. 	for(int i = 0; i< c.length(); i++){
  24. 		stringC = stringC*10 + assigned[c[i]];
  25. 	}
  26. 	if((stringA + stringB) == stringC)	return 1;
  27. 	else return 0;
  28. }
  29.  
  30. bool CalculatePuzzle(map<char, int> &assigned, string lettersToAssign,string fullString){
  31.  
  32. 	if(lettersToAssign.empty()){
  33. 		// for(int i = 0 ; i< fullString.size();i++ )
  34. 		// cout << fullString[i] << " " << assigned[fullString[i]] << endl;
  35. 		// cout << endl << endl;
  36. 		return satisfyCondition(assigned);
  37. 	}
  38.  
  39. 	for(int i = 9; i >=0; i--){
  40. 		char toAssign = lettersToAssign[0];
  41. //		cout << toAssign << endl;
  42. 		bool present = 0;
  43. 		for(map <char, int>::iterator it = assigned.begin(); it != assigned.end(); it++)
  44. 		{
  45. 			if(it->second == i){
  46. 				present = 1;	
  47. 			}
  48. 		}
  49. 		if(present == 1)	continue;
  50. 		assigned[toAssign] = i;
  51. 		bool b = CalculatePuzzle(assigned, lettersToAssign.substr(1),fullString);
  52. 		if(b == 1)
  53. 		return 1;
  54. 		else{
  55. 			assigned[toAssign] = -1;
  56. 		}
  57. 	}
  58. 	return 0;
  59. }
  60.  
  61. int main(){
  62. 	map <char, int> assigned;
  63. 	string letters;
  64. 	int frequency[26] = {0};
  65. 	for(int i = 0; i< a.length(); i++){
  66. 		if(frequency[a[i]-'a']++ == 0){
  67. 			//assigned[a[i]]++;
  68. 			letters+= a[i];
  69. 		}
  70. 	}
  71. 	for(int i = 0; i< b.length(); i++){
  72. 		if(frequency[b[i]-'a']++ == 0){
  73. 			//assigned[b[i]]++;
  74. 			letters+= b[i];
  75. 		}
  76. 	}
  77. 	for(int i = 0; i< c.length(); i++){
  78. 		if(frequency[c[i]-'a']++ == 0){
  79. 			//assigned[c[i]]++;
  80. 			letters+= c[i];
  81. 		}
  82. 	}
  83. 	for(int i = 0; i < letters.size(); i++){
  84. 		assigned[letters[i]] = -1;
  85. 	}
  86. //	cout << letters << endl;
  87. 	bool b = CalculatePuzzle(assigned,letters,letters);
  88. 	if (b == 0)	{
  89. 		cout << "No solution" << endl;
  90. 	}
  91. 	else{
  92. 		for(map <char, int>::iterator it = assigned.begin(); it != assigned.end(); it++){
  93. 		cout << it->first << " " << it->second << endl;
  94. 		}
  95. 	}
  96. 	cout << endl;
  97.  
  98. }
  99.  
Success #stdin #stdout 0.08s 3480KB
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stdin
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Standard input is empty
stdout
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d 7
e 5
m 1
n 6
o 0
r 8
s 9
y 2
https://ideone.com/jvZq3i
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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