Getting TLE error in the code

#1

#include
using namespace std;
int f(int n){
if(n<=1){
return 1;
}
return (f(n-1)+((n-1)*f(n-2)));
}
int main() {
int t;
int n;
for(int i=0;i<t;i++){
cin>>n;
cout<<f(n)<<endl;
}
return 0;
}

#2

Hey @mansi25
You havent inputted t
Thats why getting tle
Also use long long otherwise answer may overflow

#include<iostream>
using namespace std;

long long int solve(int n){
	if(n<=2){
		return n;
	}
	return solve(n-1)+((n-1)*solve(n-2));
}
int main() {
	int t;
	cin>>t;
	while(t--){
		int n;
		cin>>n;
		cout<<solve(n)<<endl;
	}
	return 0;
}
#3

this code is giving segmentation fault

#4

Try with custom input
Its working perfectly on my side :slight_smile:
I even submitted to check and its passing the given testcases