Help required with cause of runtime error

#1

Hello.
I get the below error when attempting to run the modified solution code I wrote on LeetCode

Error:
Line 1034: Char 9: runtime error: reference binding to null pointer of type ‘int’ (stl_vector.h)
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /usr/bin/…/lib/gcc/x86_64-linux-gnu/9/…/…/…/…/include/c++/9/bits/stl_vector.h:1043:9

I’m unable to locate the reason for this error.

Code Link: https://ide.codingblocks.com/s/386336

#2

Hey @sabihash
Please share the link to the question

#3

Hello, Link to question is at https://online.codingblocks.com/app/player/174625/content/172189/8506/code-challenge

#4

Oh u are getting this error on Coding blocks platform?

#5

Now try to debug logically

         for(int i=0;i<numCourses;i++){
            indegree.push_back(0);   //changed this because indegree[i] is not allocated 
            edgeList[i]=vector<int>();
         }
#6

Thank you! It seems I missed that somehow.

1 Like
#7

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