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nth fibonacci number

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Subodh Chandra Shil answered on March 1, 2022 Popularity 9/10 Helpfulness 2/10

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nth fibonacci number

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// Find N-th fibonacci number using recursion

#include <bits/stdc++.h>
using namespace std;

int fibo(int n)
{
    if (n == 1)
        return 1;
    if (n == 2)
        return 1;
    return fibo(n - 1) + fibo(n - 2);
}

int main()
{
    int n, T;
    cin >> T;
    while (T--)
    {
        cin >> n;
        cout << fibo(n) << endl;
    }

    return 0;
}

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++ fibonacci

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Contributed on May 31 2022

Subodh Chandra Shil

0 Answers Avg Quality 2/10

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nth fibonacci number

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def fib(n):
    if(n<0):
        print("Invalid input")
    elif(n==0):
        return 0
    elif(n==1) or (n==2):
        return 1
    else:
        return fib(n-1)+fib(n-2)
n=int(input())
print(fib(n))

Popularity 9/10 Helpfulness 2/10 Language whatever

Source: Grepper

Tags: fibonacci fibo

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Contributed on Mar 01 2022

Red Team

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find nth fibonacci number

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// a dynamic programming approach for generating any number of fibonacci number
#include<bits/stdc++.h>
using namespace std;
 
long long int save[100]; // declare any sized array
long long int fibo(int n){
  if(n==0) return 0;
  if(n==1) return 1;
  if(save[n]!=-1) return save[n]; //if save[n] holds any value that means we have already calculated it and can return it to recursion tree
  save[n]=fibo(n-1)+fibo(n-2); // if it come tp this line that means I don't know what is the value of it
  return save[n];
}

int main(){
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  memset(save,-1,sizeof save);
  cout<<fibo(2)<<'\n';

  return 0;
}

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Mar 15 2022

Lucky Lemur

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nth fibonacci number

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function nthFibonacci(n, cn = 0, val = 0, pval = 0) {
    if (n == cn) return pval;
    if (val == 0) val++;
    return nthFibonacci(n, cn + 1, val + pval, val);
}

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: fibonacci fibo

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Contributed on Jul 22 2022

Long Llama

0 Answers Avg Quality 2/10

nth fibonacci number

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