Why is memset() incorrectly initializing int?

Question

Why is the output of the following program 84215045?

int grid[110];
int main()
{
    memset(grid, 5, 100 * sizeof(int));
    printf(\"%d\", grid         


        

Answer 1

memset is about setting bytes, not values. One of the many ways to set array values in C++ is std::fill_n:

std::fill_n(grid, 100, 5);