Answer to Question #76526 in C++ for LEE JIA WEI

Question #76526
Write a function num_dups that takes in a string and returns the number of duplicated characters in the string.

Hint: You can use a std::map to maintain a count of the characters.

#include <string>

using namespace std;

int num_dups(string str) {
//code

}
1
Expert's answer
2018-04-26T07:46:54-0400
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Comments

Assignment Expert
28.04.18, 14:40

int main() { cout

Assignment Expert
28.04.18, 14:40

{ if (!rep) num_of_dups++; rep = true; copy_str[comp_symbol] = '#'; } } } return num_of_dups; }

Assignment Expert
28.04.18, 14:40

string copy_str = str; int num_of_dups = 0; for (int symbol = 0; copy_str[symbol] != '\0'; symbol++) { bool rep = false; for (int comp_symbol = symbol + 1; copy_str[comp_symbol] != '\0'; comp_symbol++) { if (copy_str[symbol] == copy_str[comp_symbol] && ( (copy_str[comp_symbol] >= 'A' && copy_str[comp_symbol] = 'a' && copy_str[comp_symbol]

Assignment Expert
28.04.18, 14:40

There was a misunderstanding what exactly should be calculated. Try this: #include using namespace std; int num_dups(string str) {

LEE JIA WEI
27.04.18, 16:51

expected ans for num_dups("mississippi"); = 3 however get 7 for solution 1

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