The function's only behavior should be to return the sum of array userVals' elements. What common error does the function make? Assume userVals always has exactly 10 elements.
int SumArray Elements(int uservals[]) {
for (i = 1; i <10; ++i) {
userVals[i] = userVals[i] + userVals[i - 1]; } return userVals[i]; }
A. Attempts to access an invalid element.
B. Omits the first element from the sum.
C. Modifies userVals' elements.
D. Omits the last element from the sum.

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Write a program that performs a simple n-body simulation, called "jumping leprechauns." this simulation involves n leprechauns, numberd 1 to n. it maintains a gold value g_i for each leprechaun i, which begins with each leprechaun starting out with a million dollars worth of gold, that is, g_i = 1000000 for each i = 1,. in addition, the simulation also maintains, for each leprachaun,i, a place on the horizon, which is represented as a double-precision floating point number, x_i. in each iteration of the simulation, the simulation processes the leprachauns in order. processing a leprachaun i during its iteration begins by computing a new place on the horizon for i, which is determined by the assignment:

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