华为机试——查找子字符串个数

/*查找子字符串个数*/#include <iostream>#include <string>using namespace std;int num_of_sub(char *str){int len = strlen(str);int count = 0;for(int i= 0;i < len;i++)if(str[i] != ' '){for(int j = i+1;j < len;j++)if(str[j] == ' '|| j == len - 1){count++;break;}i = j;}return count;}int main(){char *str = " asdg ds  dga   ";cout << num_of_sub(str) << " words." << endl;return 0;}