Truncate Sentence.cpp

class Solution {
public:
	string truncateSentence(string s, int k) {

		int n = s.size();

		string ans;
		int cnt = 0;
		for(int i=0 ; i<n ; i++){

			if(s[i] == ' '){
				cnt++;
			}

			if(k == cnt){
				return ans;
			}

			ans += s[i];

		}

		return ans; 
	}
};