Number of Segments in a String in C++

C++Server Side ProgrammingProgramming

Suppose we have a string s. We have to count the number of segments in a string, where a segment is defined to be a contiguous sequence of characters (no whitespace).

So, if the input is like "Hello, I love programming", then the output will be 4, as there are 4 segments.

To solve this, we will follow these steps −

• n := 0

• for initialize i := 0, when i < size of s, update (increase i by 1), do −

• if s[i] is not equal to white space, then −

• (increase n by 1)

• while (i < size of s and s[i] is not equal to white space), do −

• (increase i by 1)

• return n

Example

Let us see the following implementation to get a better understanding −

Live Demo

#include <bits/stdc++.h>
using namespace std;
class Solution {
public:
int countSegments(string s) {
int n = 0;
for(int i = 0; i < s.size(); i++){
if(s[i] != ' ')
n++;
while( i < s.size() && s[i] != ' ')
i++;
}
return n;
}
};
main(){
Solution ob;
cout << (ob.countSegments("Hello, I love programming"));
}

Input

"Hello, I love programming"

4