[問題] 終極密碼遊戲問題
#include<stdlib.h>
void main()
{
int i,r,d,u,l;
char c;
srand((unsigned)time(NULL));
do{
do{
printf("Enter upper (limit is 1 to 32767)\n");
scanf("%d",&u);
while(u<=0||u>=32768){
printf("Error! Limit is 1 to 32767\n");
printf("Enter upper (limit is 1 to 32767)\n");
scanf("%d",&u);
}
printf("Enter lower (limit is 1 to 32767)\n");
scanf("%d",&l);
while(l<=0||l>=32768){
printf("Error! Limit is 1 to 32767\n");
printf("Enter upper (limit is 1 to 32767)\n");
scanf("%d",&l);
}
}while(l>=u);
i=rand()%(u-l)+1;
while(i<=l){
i=rand()%u+1;
}
do{
printf("Please Enter Your Guess\n");
scanf("%d",&d);
if(i==d)
printf("You win\n");
else if(d<=i)
printf("range is %d to %d\n",d,u);
else if(d>=i)
printf("range is %d to %d\n",l,d);
}while(i!=d);
printf("Again?(Y/N)\n");
scanf("%d%d",&c,&c);
}while(c!='n');
}
這是我寫的程式
不過最後要按Y/N的時候卻怎樣都會變無窮迴圈
不知道怎辦
還有輸入的文字我想要判斷是否為數字
不過還是不行
有哪位高手可以幫助一下?
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