C语言 在 c 中打印 N 个第一个阶乘数的程序
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Program to print N first factorial numbers in c
提问by user3120705
Factorial number is a number that is multiplied by it's previous numbers. For example it's 5. 1*2*3*4*5 is it's factorial number. I already made a program which prints factorial of any number, but i don't know how to make it to print N first factorial number in c. For example i type 10. It must show first 10 numbers along with their factorials (Making a table) Here is what i was made to print factorial of any number.Is there any possibility to do with while/ if else statements/ and for loop?
阶乘数是一个数乘以其先前的数。例如它是 5。1*2*3*4*5 是它的阶乘数。我已经制作了一个打印任何数字阶乘的程序，但我不知道如何让它在 c 中打印 N 个第一个阶乘数。例如，我输入 10。它必须显示前 10 个数字及其阶乘（制作表格）这是我用来打印任何数字的阶乘的内容。是否有可能与 while/if else 语句/和 for 循环有关?
#include <stdio.h>
int main()
{
int i, n, fakt = 1;
printf("Enter a number:\n");
scanf("%d", &n);
for (i = 1; i <= n; i++)
fakt = fakt*i;
printf("Factorial of %d js %d\n", n, fakt);
getch();
}
回答by Rikayan Bandyopadhyay
You probably want this:
你可能想要这个：
Program:
程序：
#include <stdio.h>
int main()
{
int i, n, fakt = 1;
printf("Enter a number:\n");
scanf("%d", &n);
for (i=1;i<= n;i++) //use braces to write more than one statement inside the loop
{
fakt=fakt*i;
printf("Factorial of %d is %d\n", i, fakt);
}
getch();
}
Output:
输出：
Enter a number:
5
Factorial of 1 is 1
Factorial of 2 is 2
Factorial of 3 is 6
Factorial of 4 is 24
Factorial of 5 is 120
回答by droidman
#include <conio.h>
#include <stdio.h>
void main()
{
int f=1,i,v;
clrscr();
printf("Enter the number :");
scanf("%d",&v);
for(i=1;i<=v;i++)
{
f=f*i;
printf("num =%d and fac=%d\n",i,f);
}
getch();
}
this code will work
此代码将工作
回答by Dan D.
That code already uses the forloop. The whileloop equivalent is:
该代码已经使用了for循环。while等价的循环是：
i = 1;
while (i <= n) {
fakt = fakt*i;
i++;
}
回答by reza.safiyat
You can do a nested loop.
您可以执行嵌套循环。
Run the parent loop from 1 to n, and the nested loop will be your already working for loop.
从 1 到 n 运行父循环，嵌套循环将是您已经在工作的 for 循环。
You may want this:
你可能想要这个：
#include <stdio.h>
int main()
{
int n, i, num, factorial;
printf("Enter the number of terms: ");
scanf("%d", &n);
for(i = 1; i <= n; i++)
{
num = i;
factorial = 1;
while(num)
factorial *= num--;
printf("%d \t %d\n", i, factorial);
}
return 0;
}
Output:
输出：
Enter the number of terms: 10
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 40320
9 362880
10 3628800
回答by user3203860
#include <stdio.h>
int factorial(int n)
{
int i,fakt = 1;
printf("Enter a number:\n");
scanf("%d", &n);
for (i = 1; i <= n; i++)
fakt = fakt*i;
return fakt;
}
int main()
{
int n;
printf("Enter a number:\n");
scanf("%d", &n);
int i = 0;
for(i=1;i<=n;i++)
{
printf("Factorial for %d is %d\n",i,factorial(i));
}
return 0;
}
I think this will do the job just fine.
我认为这会很好地完成工作。
回答by Kalanidhi
Use this fastest version of factorial using recursion with if ..else statement
使用带有 if ..else 语句的递归使用这个最快的阶乘版本
#include<stdio.h>
int fact(int n);
void main()
{
int n;
printf("\nEnter an integer:");
scanf("%d",&n);
fact(n);
}
int fact(int n)
{
int a;
if(n==0)
{
printf("The Factorial of 0 is 1\n");
return 1;
}
else
{
a=n*fact(n-1);
printf("The Factorial of %d is %d\n",n,a);
return a;
}
}
回答by Goutam Chakraborty
#include<stdio.h>
int main(int n){
int fact;
clrscr();
printf("Enter a number and type exit:\n");
scanf("%d",&n);
if(n!=0){
fact=n*main(n-1);
printf("Factorial of %d is %d\n",n,fact);
getch();
return fact;
}
else{
printf("Factorial of 0 is 1.\n");
getch();
return 1;
}
}
