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費式數列中,除了第一項第二項是一之外,之後的每一項皆為前兩項的和,請撰寫一程式,由使用者輸入N代表費是數列的第N項,程式會輸出第N項的值。

 

輸入說明:

輸入一個正整數N,代表要計算出費式數列的的N項,N大於0。

 

輸出說明:

輸出費式數列第N項的值。

 

輸入範例:

5

 

輸出範例:

5
[Exam] asked in 2017-1 程式設計(一)AD by (30k points)
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int **** *

{
***** *   int ** ** * * *
***** * ** * * while(1){
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* * ** **** * * * if(n==0)
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*** *** * ** * * * * * *** * * ** * n_2=n_1;
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* * * *** ****** * ***** ** * * ** * ** *******
** * *** }
* * * ** **** return 0;

}




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