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下面是問題:突出(通過放一個括號)C(n,k)在三角形中的答案。 我已經爲我的11行pascal三角形構造了我的代碼。但我無法突出顯示C(n,k)。如何在pascal三角形中插入一個數字的括號?
這是我所做的。
#include<stdio.h>
int recursive(int n, int k);
int main(void)
{
int row, space, column, b, x, y;
printf("Pascal triangle with 11 rows : \n");
printf("Enter the row and column that you would like to highlight on the triangle : ");
scanf("%d %d", &x, &y);
if (x > 11)
{
printf("Error! The row entered must be smaller than 11! \n ");
}
else if (y > x)
{
printf("Error! Column CANNOT more than number of row!\n");
}
else
{
for(row = 0 ; row < 11 ; row++)
{
for(space = 30 - 3 * row ; space > 0 ; space--)
{
printf(" ");
}
for(column = 0;column <= row; column++)
{
{
if(column == 0 || row == 0)
{
b = 1;
}
else
{
b = (b * (row - column + 1)/column);
}
printf("%6d", b);
}
if(row == x-1 && column == y-1)
{
printf("(%2d)",recursive(row , column));
}
else
{
printf("%d ",recursive(row , column));
}
}
printf("\n");
}
}
return 0;
}
int recursive(int n,int k)
{
if(k == 0 || k > n)
return 0;
else if(n == 1 && k == 1)
return 1;
else
return (recursive(n - 1, k) + recursive(n - 1, k - 1));
}
有人能告訴我我哪裏做錯了嗎?
嗯,你沒有用`x`和`y`做任何事情嗎? – 2011-02-13 17:47:59