帮我写一下C语言大作业吧，非常紧急，是关于猜价格游戏的。

#include
#include
#include

void introduction(){
printf("猜价格游戏，。。。。。\n");
}
int startgame(){
int price,player;
int i;
time_t t;

srand((unsigned)time(&t));
price=rand()%101+100;
printf("%d\n",price);
for(i=0;i<6;i++){
printf("请输入价格：");
scanf("%d",&player);
if(player>price)
printf("高\n");
else if(player printf("低\n");
else{
printf("恭喜你!猜对了!\n");
return i;
break;
}
}
printf("很遗憾!没有猜对!\n");
return -1;
}

double winingper(int winnum,int total){
double per,prinper;

if(total==0){
printf("你还没有进行游戏!\n");
return -1;
}

per=(double)winnum/total;
prinper=per*100;
printf("你的胜率为：%.1lf % \n",prinper);
return prinper;
}

int average(int score,int num){
if(num==0){
printf("你还没有进行游戏!\n");
return -1;
}

printf("你的平均分为：%d\n",score/num);

return score/num;
}

int gameover(){
exit(1);
}

void menu(){
printf("***********menu*************\n");
printf("1.游戏介绍\n");
printf("2.开始游戏\n");
printf("3.输出胜率\n");
printf("4.输出平均成绩\n");
printf("5.\n");
printf("6.退出游戏\n");
printf("****************************\n");
}

void main(){
int i,select,flag;
int count=0,wincount=0,score=0;

label:
menu();
scanf("%d",&select);
switch(select){
case 1:introduction();goto label;
break;
case 2:flag=startgame();count++;
if(flag!=-1){
wincount++;
score+=(5-flag)*2;
}
goto label;
break;
case 3:winingper(wincount,count);goto label;
break;
case 4:average(score,count);goto label;
break;
case 5:goto label;
break;
case 6:exit(1);
break;
default:
printf("错误的选择项!\n");
break;
}

}

不知

楼上都不看题
楼主又没问怎么猜

快速查找

用二分查找