0
An array is simply a contiguous block of memory. The length of that memory is the product of all its dimensions multiplied by the size of its type. Thus a 5x5 array is exactly the same as a 1x25 array. The only difference is in how you refer to each element.
The following code demonstrates how we can remap a 5x5 array to a 1x25 array, simply by pointing at the first element. Note that we haven't actually changed the array, nor have we copied it to new memory. We're simply interpreting the exact same memory in two different ways.
#include<iostream>
#include<iomanip>
int main()
{
int x[5][5] = {
1, 2, 3, 4, 5,
6, 7, 8, 9, 10,
11, 12, 13, 14, 15,
16, 17, 18, 19, 20,
21, 22, 23, 24, 25
};
// treat as 5x5 array:
for (int a=0; a<5; ++a)
{
for (int b=0; b<5; ++b)
{
std::cout<<std::setw (3)<<x[a][b];
}
std::cout<<'\n';
}
std::cout<<std::endl;
// treat as one-dimensional array (remap)
int* y = x[0];
for (int c=0; c<25; ++c)
std::cout<<std::setw (3)<<y[c];
std::cout<<'\n'<<std::endl;
}
Output:
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
What else can I help you with?
Array implementation of priority queue example program in c plus plus?
yes
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You can write a C++ fib pro using arrays but the problem is the prog becomes very complicated since u need to pass the next adding value in an array.....
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yes
Can you help me with the C plus plus code of the program which has 10 index of array it adds 5 into every even elements of the array and then it subtracts 10 into the odd elements of the array?
int array[10] = {...}; for (int i = 0; i < 10; ++i) { if (i % 2 == 0) array[i] += 5; else array[i] -= 10; }
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Would you Write c plus plus program using array for Fibonacci number?
You can write a C++ fib pro using arrays but the problem is the prog becomes very complicated since u need to pass the next adding value in an array.....
What is the lowest subscript of an array in c plus plus?
The lowest subscript of an array in C, or C++ is 0.
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