Check out example codes for "least number of coins to form a sum". It will help you in understanding the concepts better.

Code Example 1

``````// A Dynamic Programming based C++ program to find minimum of coins
// to make a given change V
#include<bits/stdc++.h>
using namespace std;

// m is size of coins array (number of different coins)
int minCoins(int coins[], int m, int V)
{
// table[i] will be storing the minimum number of coins
// required for i value.  So table[V] will have result
int table[V+1];

// Base case (If given value V is 0)
table = 0;

// Initialize all table values as Infinite
for (int i=1; i<=V; i++)
table[i] = INT_MAX;

// Compute minimum coins required for all
// values from 1 to V
for (int i=1; i<=V; i++)
{
// Go through all coins smaller than i
for (int j=0; j<m; j++)
if (coins[j] <= i)
{
int sub_res = table[i-coins[j]];
if (sub_res != INT_MAX && sub_res + 1 < table[i])
table[i] = sub_res + 1;
}
}
return table[V];
}

// Driver program to test above function
int main()
{
int coins[] =  {9, 6, 5, 1};
int m = sizeof(coins)/sizeof(coins);
int V = 11;
cout << "Minimum coins required is "
<< minCoins(coins, m, V);
return 0;
}``````

Learn ReactJs, React Native from akashmittal.com