遞歸關係T定義在n> = 0上,並以T(n)= T(n-1)+ 2 * n的形式給出,其基本情況T(0)= 1。評估遞歸關係
你會得到一個整數k,你必須編寫一個程序來找出T(k)。
該程序必須實現T()遞歸。
這裏是我的代碼:
include<stdio.h>
long long T(int input)
{
if(input == 0)
return 1;
return 2*input + T(input-1);
}
int main()
{
/*write your code here*/
int k;
scanf("%d",&k);
printf("%lli",T(k));
return 0;
}
這裏是我得到
Program:1:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
Program:In function 'main':
Program:13:4: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
Program:13:4: warning: incompatible implicit declaration of built-in function 'scanf' [enabled by default]
Program:14:4: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
Program:14:4: warning: incompatible implicit declaration of built-in function 'printf' [enabled by default]
Program:14:4: warning: implicit declaration of function 'T' [-Wimplicit-function-declaration]
Program:14:4: warning: format '%lli' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat]
我如何能實現以下預期結果的錯誤?
Sample Test Cases
Input Output
Test Case 1 1 3
Test Case 2 2 7
Test Case 3 3 13
你應該寫#include –
非常感謝yar .. !! – user3454353