How to store index of nested loop into arraylist of coordinates xyz

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Hi,

I am a beginner in C++. I have question about nested loop. I want to generate a list of coordinates (x,y,z) from 1 to N.

This is the code that I have tried, but it doesnt give the correct coordinates like (0,0,0) (1,0,0) and so on. I am struggling to put the coordinates into array list of X[] Y[] and Z[]. Can someone please give me hint on what is going wrong?

What I have tried:

int count=1;

for ( int i = 0; i < size ; i++)
{ for ( int j = 0; j < size ; j++)
{ for ( int k = 0; k < size; k++) // I want to put the value of i,j,k into arraylist from 1 to N for X[], Y[] and Z[]
{ X[count] = k;
Z[count] = i;
Y[count] = j;

count++;
}

}

}

for ( int count = 1; count<=N; count++)
{ cout << count << setw(6)<< X[count] <<Y[count]<<Z[count]<<endl;
}

Posted 22-Mar-17 2:37am

Member 12985257

Updated 22-Mar-17 4:15am

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Sunasara Imdadhusen 22-Mar-17 9:44am

Not clear at all!

Patrice T 22-Mar-17 14:45pm

Post code that can be compiled.

1 solution

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Garth J Lancaster · Accepted Answer · 2017-03-22T04:15:00

Solution 1

Its not clear what your sequence is .. but if you look at this

C++

{ for ( int k = 0; k < size; k++) // I want to put the value of i,j,k into arraylist from 1 to N for X[], Y[] and Z[]
{ X[count] = k;
Z[count] = i;
Y[count] = j;}

vs what you have written, should it not be

C++

...
{ for ( int k = 0; k < size; k++) // I want to put the value of i,j,k into arraylist from 1 to N for X[], Y[] and Z[]
{ X[count] = i;
Y[count] = j;
Z[count] = k;}

you also need to learn how to use debugger and to step through your program, which by then observing the values of the variables etc would show you what is/isnt happening

Posted 22-Mar-17 4:15am

Garth J Lancaster

Updated 22-Mar-17 4:16am

v2

Comments

CPallini 22-Mar-17 11:10am

5.

Member 12985257 22-Mar-17 12:33pm

Sorry for not explaining clearly on the problem. When we created a nested loop, if let say the size = 2; with this code:
for ( int i = 0; i < size ; i++)
{ for ( int j = 0; j < size ; j++)
{ for ( int k = 0; k < size; k++)
{ cout << i << j << k << endl;

count++;
}

}

}

Output will be:
000
100
010
110
001
101
011
111

But, what I want is something like this, where the index value is stored into an array.
Element X[] Y[] Z[]
1 0 0 0
2 1 0 0
3 0 1 0
4 1 1 0
5 0 0 1
6 1 0 1
7 0 1 1
8 1 1 1

Member 12985257 22-Mar-17 17:27pm

Thanks everyone, I now know where the mistake come from.