求最大值

#include <stdio.h>
#include <math.h>

int
myMax(int i, int j)
{
    int max;

    max = ((i+j) + abs(i-j)) / 2;    //利用绝对值

    return (max);
}

int
myMax2(int i, int j)
{
    int c = 0;
    c = i - j;
    c = (unsigned)c >> (sizeof(int)*8 -1);   //根据符号位判断
    if (c)
    {
        return (j);
    }
    else
    {
        return (i);
    }
}

int
main(void)
{
    int i = 3, j = 5;

    printf("Max: %d\n", myMax(i,j));
    printf("Max: %d\n", myMax2(i,j));

    return (0);
}