题目内容
As Jack lies under the bed, there must be somebody sleeping on top of it.
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The doctor asks Jack to see him three times a week for two years to cure his fears.
The doctor charges Jack $200 a visit.
Jack is willing to pay the amount the doctor charges.
有以下程序#includevoid fun(int n,int *p){ int f1,f2;if(n==1||n==2) *p=1;else{ fun(n-1,&f1); fun(n-2,&f2);*p=f1+f2;}}main(){ int s;fun(3,&s); printf("%d\n",s);}程序的运行结果是
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