matrix

[albanick]

can some1 tell me the source code for this matrix:
1 0 0
0 1 0
0 0 1

[vlad from moscow]

For example

const int N = 3;
int a[N][N] = { { true, false, false },
                { false, true, false },
                { false, false, true } };

Or

const int N = 3;
int a[N][N] = {};

for ( int i = 0; i < N; i++ ) a[i][i] = 1;

It is not clear what code you are awaiting.

[Catfish2]

int matrix[3][3] = {
    {1, 0, 0},
    {0, 1, 0},
    {0, 0, 1}
};

[albanick]

i thought (if (j=i) aij=1 else aij=0) if u understand what i mean cuz im a beginner and i just started learning c++