HELP

Question

#include <iostream>
using namespace std;

int main() {
long double fac=1, sum=0;
int i,j;
for(i=2; i<=50; i++)
{
for(j=1; j<i; j++)
{
fac*=i;
sum+=(j/fac);
}
}
cout << sum ;

return 0;
}
is this code correct for the expression
1/2!+2/3!+.....+49/50! ?

Answer 1

I think you calculate the factorial in the wrong way, also you never reset "fac", resulting in it keeping its value all the time, and I think the addition to the sum should be done once per iteration, e.g. after the second for-loop. For reference:
https://code.sololearn.com/cpPEjwJQD05r/?ref=app