时间随机种子，猜数字大小

1.需调用库函数<stdlib.h>
2.srand(seed);
3.rand()随机函数

游戏机制：
随便输入一个数开始
过大过小有提示直至猜对。

代码展示：

#include<stdio.h>
#include<stdlib.h>
int main()
{
    
        int m,seed,a;

printf("please input any number to start it\n");
scanf("%d",&seed);
srand(seed);
m=rand();
while(a=-1)
{
    
    
printf("if you don't want to play,you can input -1\n let's begin!");
printf("please guess a number:\n");
scanf("%d",&a);
	 if(m==a)
	 {
    
    printf("right!");
	 break;
	 }
	 else
	 {
    
    printf("wrong!\n");
	 if(a<m)
	 {
    
    printf("small!\n");}
	 if(a>m)
	 {
    
    printf("big!\n");}
	 }
}
printf("the number is %d\n",m);
return 0;
}