Answer / pavan_mustyala

/**************************
Locates Search Element in the array and returns it's
position. If not found returns -1(Invalid)
**************************/
int locateElement(int *arr, int searchElement, int
arraySize)
{
int i = -1;// Invalid Id

for(i = 0; i < arraySize; i++)
{
if(arr[i] == searchElement)
{
return i; // Element found at this index in the array
}
}
return -1; // Search Element not found in the array
}

Coin Problem You are given 9 gold coins that look identical. One is counterfeit and weighs a bit greater than the others, but the difference is very small that only a balance scale can tell it from the real one. You have a balance scale that costs 25 USD per weighing. Give an algorithm that finds the counterfeit coin with as little weighting as possible. Of primary importance is that your algorithm is correct; of secondary importance is that your algorithm truly uses the minimum number of weightings possible. HINT: THE BEST ALGORITHM USES ONLY 2 WEIGHINGS!!!

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