C/C++ :: Find Largest Sum Down A Triangle - Code Error With Recursive Function

Thing I want is find the largest sum down a triangle,(moving to adjacent numbers on the row below )there are many methods to go down.

75
95 64
17 47 82
18 35 87 10
20 04 82 47 65
19 01 23 75 03 34
88 02 77 73 07 63 67
99 65 04 28 06 16 70 92
41 41 26 56 83 40 80 70 33
41 48 72 33 47 32 37 16 94 29
53 71 44 65 25 43 91 52 97 51 14
70 11 33 28 77 73 17 78 39 68 17 57
91 71 52 38 17 14 91 43 58 50 27 29 48
63 66 04 68 89 53 67 30 73 16 69 87 40 31
04 62 98 27 23 09 70 98 73 93 38 53 60 04 23

I wrote a program with a recursive() called finder. But it dose not work properly,at run time it becomes to a infinite status. How to detect the error at runtime. Here is the code.

#include<stdio.h>
void finder(int x,int y);
int tot;

[Code] ....

I think the error is the changing value of x after a round of for loop.