I started learning C today and am struggling to implement my approach to SUMTRIAN ( http://www.codechef.com/problems/SUMTRIAN ) using it. I want to make my 2D array representing the triangle accessible to all methods so that I can solve it recursively but can’t figure out how.

In Java, I simply made the array static, saved values of the triangle, then computed the solution recursively.

How do you do this in C? I initialize the 2D array but can’t find anyway to overwrite/update it when it’s outside of any methods. And using my recursive approach, I can’t constantly keep passing in the triangle (I’m finding passing a 2D array through a method challenging…)

Thanks!

Code:

```
#include <stdio.h>
#include <math.h>
int main()
{
int tests;
scanf("%d", &tests);
while(tests-->0){
int levels;
scanf("%d", &levels);
int triangle[levels][levels];
int y, x, value;
for(y = 0; y < levels; y += 1){
for(x = 0; x < 1 + y; x += 1){
scanf("%d", &value);
triangle[y][x] = value;
}
}//triangle is stored
/*here i would call a recursive method on the triangle without having to pass it*/
}//all tests processed
return 0;
```

}