《算法竞赛入门经典》CH1

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mac, Xcode
一些无法得到理想结果的代码和实际输出样式

1. no mistake

printf（“%f\n", sqrt(-10));

nan

2. no mistake

printf("%f\n", 1.0/0.0);

inf

#include <stdio.h>
#include <math.h>
int main()
{   
    //no mistake
    printf("%f\n", 0.0/0.0);

    //no mistake, but warn
    //int isn't corresponded with double
    printf("%f\n", 0/0);

    //division by zero is undefined
    printf("%d\n", 0/0);
    return 0;
}

nan
nan
73823

4. Two warn that division by zero is undefined

printf("%d\n", 1/0);
printf("%d\n", 0/0);

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