#include <iostream>
using namespace std;
void long_fctrl(int num[], int f_num) // Function for Factorial
{
--f_num; // Decrement Number to multiply with Factorial Number.
int i = 0, pow = 0, x, j, len = 0, k = 0;
while(f_num > 1) // Loop for Factorial Number
{
i = 0;
do { // Loop to Multiply Two Array Number
x = (num[i]*f_num) + pow;
num[i] = x%10;
pow = x/10;
++i;
}while((pow!=0) || (x == 0));
--f_num;
if(k == 0) //Condition to Find the Length of Factorial Number in array
{
len = i;
k = 1;
}
if(i > len)// Condition for factorial array Length
len = i;
}
cout << "Your Number : \n";
for(j = len-1; j >= 0; --j) // Loop for Output of Factorial Number..
cout << num[j];
}
int main()
{
cout << "Enter Number (1 - 100) : ";
int num, temp;
cin >> num;// num is the number of which we have to calculate Factorial.
if(num > 0 && num <= 100)
{
int fctrl[200] = {0};
int i;
temp = num;// Temp initialize to Factorial Number..
for(i = 0; temp!= 0; ++i,temp/=10)
{
fctrl[i] = temp%10;
} // Loop to insert user entered Number in Factorial Array...
long_fctrl(fctrl, num); //Giving Factorial Number in Array and also
//in the integer form to the Function
}
return 0;
}
計劃是在範圍1到計算階乘至100 ..
通過輸入數小於6它給正確的輸出
輸入:
輸出:
但對其他數它給輸出錯誤
輸入:
輸出:
預期輸出:
我無法找到我的邏輯錯誤................ ...
請,如果你能找到任何錯誤,告訴我.......
....................... .....................................
........... ..................................................按計劃在c中所示意外的輸出++
我無法理解。請詳細回答...並且我在循環乘法後初始化len,那麼如何使用它之前? –
@NavneetC。你需要跟蹤每一個循環的len,所以你知道你現在的數字有多長,以便你知道你的乘法有多遠。像上面所做的那樣,將代碼放在調試器中,或者通過紙張工作。 – 1201ProgramAlarm
謝謝!幫助... –