Question

//C++

Given a string S containing a number of substrings separated by spaces. Write a program to do the following:

1. Count the number of substrings in S and print S with extra spaces deleted.
2. Define a dynamic array of pointers (a pointer for each substring in S).
3. Save a pointer to each substring S into the array.

Hint: use strtok function.

Answer 1

#include <iostream>
#include <bits/stdc++.h>
#include <cstring>
using namespace std;

int main() {
    char S[] = "Apple Mango Orange Kiwi Watermelon Banana";
    char delim[] = " ";
    char *token = strtok(S,delim);
    vector<char *> arr;
    int count = 0;
    while(token) {
        count++;
        arr.push_back(token);
        token = strtok(NULL,delim);
    }
    cout<<"Number of substrings: "<<count<<endl;
    return 0;
}

Output screenshot