c语言问题求帮助

#include <stdio.h>
int fount(int a[][30],int n)
{
int nSum = 0;
static int nCount = 0;
for(int i=1;i<n/2;i++)
{
nSum = 0;
for(int j=i;j<n;j++){
nSum = nSum + j;
if(nSum == n)