LeetCode题解之Number of Segments in a String

1.题目描述

2、题目分析

找到字符串中的空格即可

 

3、代码

int countSegments(string s) {
        if( s.size() == 0){
            return 0;
        }
        
        vector<string> v;
        for( int i = 0; i < s.size(); i++){
            if( isspace(s[i]) ){
                continue;
            }
            int j = i+1;
            while( !isspace(s[j]) ){
                if( j < s.size() )
                    j++;
                else
                    break;
                }
            string sb = s.substr(i,j-i);
            v.push_back(sb);
            if( j == s.size() )
                break;
            i = j; 
        }
        
        int n = v.size() ;
        return n;
    }