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Thank you big brother for your great info.

I am posting here the code for 280 - Vertex where I used malloc, in Linux I don't find any runtime crash but after submission i got RTL. Would you kindly review and help me to find my fault?


#include<stdio.h>
#include<stdlib.h>

short nonaccessible[101 ...

Thanks. Yes DMA is an OS staff, I can remember, but here I used it (erroneously) as a shortcut of dynamic memory allocation, not as the acronym of Direct Memory Access.

Your point is right but you will find the RTL even if you use index range between 0 - (n-1) or allocate memory n+1.

My question ...

Hi,
I received Runtime error whenever I use malloc() for Dynamic memory allocation in C. The same code is accepted if I use static array. I don't know if I use malloc in wrong way. How can I do Dynamic memory allocation in C that won't yield RTL?

Here is a sample code of my malloc use

#include ...

I got WA for several times :cry: Can any body fix my error?


#include<math.h>
#include<stdio.h>

main(){
double a,b,c,s;
double area,ara;
while(scanf("%f%f%f",&a,&b,&c)!=EOF){

s=(a+b+c)/2.0;
ara=s*(s-a)*(s-b)*(s-c);

if(a<0||b<0||c<0) area=-1.0;
else if(ara<=0) area=-1.0;
else{
area ...