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Can't figure out the reason for getting a SiGSEGV run time error

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I am unable to determine the cause of the error . declaring function prototype as : long long int myfunc(long long int,long long int); A global array has been declared as : long long int a[50000]; calling function myfunc() by copying parameters start and end like : num=myfunc(start,end); Function Definition : long long int myfunc(long long int start,long long int end) { long long int x=0; int i=0; if((start<0)||(start>10000)||(end>10001)||(end<0)) return 0; for(i=start;i<=end;i++)
{
x = x+ a[i]; }
return x; } By Commenting out the loop in the function I am able to get WC as result but in all other cases its Runtime Error ( SIGSEGV) . The above function is the only place where the array is being accessed. Program working fine on my system ( tested with boundry conditions) !


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