What's wrong in this code? I am getting an error:

class Solution {
public:
    string truncateSentence(string s, int k) {
        int count=0;
        for(char it : s){
            if(it == ' '){
                if(count<k){
                    count  ;
                }
                else {
                    break;
                }
            }        
            
        }
        return count;    
    }
};

Line 16: Char 16: error: no viable conversion from returned value of type 'int' to function return type 'std::string' (aka 'basic_string<char>')
        return count;

CodePudding user response：

Your function declaration is string truncateSentence(string s, int k) which indicates you are returning a string, but then you have return count where count is an int.

Thus, the error.

So, you need to either:

• change the return type to int:

  int truncateSentence(string s, int k)

• convert the int value to a string in the return statement:

  return to_string(count);