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USING - C++ Make a function that takes as an input a character array and an arra

ID: 3835686 • Letter: U

Question

USING - C++ Make a function that takes as an input a character array and an array of integers. This function should return a dynamically created string array, created by combining the char array into words of length denoted by the int array. More specifically, the first element in the integer array denotes how many characters from the character array comprise the first word. The second element in the integer array indicates that those many letters after the first word in the character array are the second word. And so on.... Example: char words[] = {'h', 'i', 't', 'h', 'e', 'r', 'e', 'c', 'l', 'a', 's', 's'}; int lens[] = {2, 5, 5};//The above input into your function should return a string array://{"hi", "there", "class";}

Explanation / Answer

#include<iostream>

using namespace std;
string* getStrings(char c[], int l[]){
int n = sizeof(l) / sizeof(int);

string *str = new string[n+1];
int index = 0;
for(int j=0,i=0;i<n+1;i++){
string s = "";
index = index + l[i];
for(;j<index; j++){
s = s + c[j];
}
str[i]=s;
}
return str;
}
int main() {


char words[] = {'h','i','t','h','e','r','e','c','l','a','s','s'};
int lens[] = {2,5,5};
string *s= getStrings(words, lens);

int n = sizeof(lens) / sizeof(int);
for(int i=0;i<n;i++){
cout<<s[i]<<endl;
}
return 0;
}

Output:

sh-4.2$ g++ -o main *.cpp                                                                                                                                                                                                                                              

sh-4.2$ main                                                                                                                                                                                                                                                           

hi                                                                                                                                                                                                                                                                     

there                                                                                                                                                                                                                                                                  

class