URI 1029 - Fibonacci, How Many Calls?

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/// Header file begin
#include <iostream>
#include <cstdio>
#include <cstring>
#include <map>
#include <string>
#include <vector>
#include <cmath>
#include <cctype>
#include <sstream>
#include <set>
#include <list>
#include <stack>
#include<utility>
#include <queue>
#include <algorithm>
/// End
//..........
/// Macro
#define sf scanf
#define pf printf
#define sfint(a,b) scanf("%d %d",&a,&b)
#define sfl(a,b) scanf("%ld %ld",&a,&b)
#define sfll(a,b) scanf("%lld %lld",&a,&b)
#define sfd(a,b) scanf("%lf %lf",&a,&b)
#define sff(a,b) scanf("%f %f",&a,&b)
#define lp1(i,n) for(i=0;i<n;i++)
#define lp2(i,n) for(i=1;i<=n;i++)
#define mem(c,v) memset(c,v,sizeof(c))
#define cp(a) cout<<" "<<a<<" "
#define nl puts("")
#define sq(x) ((x)*(x))
#define all(x) x.begin(),x.end()
#define reall(x) x.rbegin(),x.rend()
#define sz size()
#define gc getchar()
#define pb push_back
/// End.........
 
/// Size
#define mx7 20000100
#define mx6 1500000
#define mx5 100005
#define mx4 1000100
#define inf 1<<30                                           //infinity value
#define eps 1e-9
#define mx (65540)
#define mod 1000000007
#define pi acos(-1.0)
 
/// Macros for Graph
 
#define white 0
#define gray 1
#define black -1
#define nil -2
 
using namespace std;
/***************/
 
/// typedef
 
typedef long long LL;
typedef long L;
typedef unsigned long long ull;
typedef unsigned long ul;
typedef unsigned int ui;
typedef pair<int, int> pii;
typedef vector<int>vi;
typedef vector<long long> vll;
typedef vector<long>vl;
typedef vector<char>vch;
typedef vector<string>vs;
typedef map<int,int>mpii;
typedef map<int,bool>mpbi;
typedef map<char,int>mpci;
typedef map<char,bool>mpbc;
typedef map<string,int>mpsi;
typedef map<long long,long long>mpll;
 
/// template
 
template<class T> T gcd(T a, T b ) {return b<=0?a:gcd(b,a%b);}
template<class T> T large(T a, T b ) {return a>b?a:b;}
template<class T> T small(T a, T b ) {return a<b?a:b;}
template<class T> T diffrnce(T a, T b) {return a-b<0?b-a:a-b;}
 
int dp[50],call[50];
 
int fib(int n)
{
 
    if(n==0)return 0;
    if(n == 1)
    {
        //c++;
        return n;
    }
 
    if(dp[n] != -1)
    {
        return dp[n];
    }
 
    else
    {
        //c++;
        //cout << "dp = " << dp[n] << " ";
        //c++;
        return (dp[n] = fib(n-1) + fib(n-2));
    }
}
 
int call_num(int n)
{
    if(n==0) return 0;
    if(n==1) return 0;
 
    if(call[n] != -1)
    {
        return call[n];
    }
 
    else
    {
        return (call[n] = call_num(n-1) + call_num(n-2) + 2);
    }
}
 
int main()
{
    mem(dp,-1);
    mem(call,-1);
 
    int t;
 
    sf("%d",&t);
 
    while(t--)
    {
        int n;
        sf("%d",&n);
 
        pf("fib(%d) = %d calls = %d\n",n,call_num(n),fib(n));
    }
 
    return 0;
}

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