BASIC-50/Factorial at main · mithunbarath/BASIC-50 · GitHub

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#include <stdio.h>
int main() {
  int n=5,ans=1;
  for(int i=1;i<=n;i++)
  ans=ans*i;
  printf("%d",ans);
}
-------------------------------------------------------------------------------------------------------------------------------------------------
#include <stdio.h>
int main() {
  int n=5,ans=1;
  while(n>0)
  {
  ans=ans*n;
  n--;
  }
  printf("%d",ans);
}
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#include<stdio.h>
int main()
{
    int n,ans=1,i=1;
    scanf("%d",&n);
    while(i<=n){
        ans=ans*i;
        i++;
    }
    printf("%d",ans);
}