一个简单的随机函数

#include<stdlib.h>   #include<stdio.h>   main()   {    int a,b,c,x=0;    while(x<5)    {a=rand()%100;     b=rand()%100;     if(a+b>100)         continue;     printf("\\n%d+%d=? ",a,b);     scanf("%d",&c);     if(c==a+b)     {printf("the answer is right");     x++;     }     else     {printf("The answer is wrong");x=0;          }        }printf("\\n program is over");      }