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55 lines
1.1 KiB
C++
55 lines
1.1 KiB
C++
/*
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* C++ Program to Find Factorial of a Number using Dynamic Programming
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*/
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#include <cstring>
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#include <iostream>
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#include <cstdlib>
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#define ll long long
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using namespace std;
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int result[1000] = {0};
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/*
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* Find Factorial of a Number using Dynamic Programming
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*/
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ll fact_dp(int n)
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{
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if (n >= 0)
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{
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result[0] = 1;
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for (int i = 1; i <= n; ++i)
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{
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result[i] = i * result[i - 1];
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}
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return result[n];
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}
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}
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/*
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* Main
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*/
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int main()
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{
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int n;
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while (1)
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{
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cout<<"Enter interger to compute factorial(0 to exit): ";
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cin>>n;
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if (n == 0)
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break;
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cout<<fact_dp(n)<<endl;
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}
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return 0;
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}
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/*
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Enter interger to compute factorial(0 to exit): 10
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3628800
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Enter interger to compute factorial(0 to exit): 20
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2432902008176640000
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Enter interger to compute factorial(0 to exit): 15
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1307674368000
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Enter interger to compute factorial(0 to exit): 0
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------------------
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(program exited with code: 1)
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Press return to continue
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