笔试常见编程题_其它

int fun1(int num)
{
    int count = 0;

    while(num)
    {
        num=num&(num-1);
        count++;
    }

    return count;
}

#include <iostream>
#include <string.h>

using namespace std;

//将字符串中每个单词的第一个字符变为大写？
char *fun(char *str)
{
    int i;
    int len = strlen(str);

    if(islower(str[0]))
    {
        str[0] = toupper(str[0]);
    }

    for(i=1; i<len; i++)
    {
        if(str[i]==‘ ‘ && islower(str[i+1]))
        {
            str[i+1] = toupper(str[i+1]);
        }
    }

    return str;
}

int main(void)
{
    char str[40] = "this is example";  //回文：从左读和从右读都是一样的

    cout << fun(str) << endl;    //This Is Example
}