Runtime Error(sigsegv)

help
,
1

my solution shows runtime error(sigsegv) even though it works perfectly fine with custom input.

2

Which solution? Which Problem? Please link to your submission.

Edit:

If you’re referring to this solution, there’s an obvious out-of-bounds access:

	    int cops_cover[400];
	    for(int i=0;i<1000;i++){
	        cops_cover[i]=0;
	    }
1 Like
3

I am referring to the same question but when i corrected this part, then also i was facing this problem. I couldn’t figure out why?

4

@manasvvi1 share your code

1 Like
5

Share The Problem Link And Your Code @manasvvi1

6

Question: COPS Problem - CodeChef
Answer: CodeChef: Practical coding for everyone

7

This still has the out-of-bounds access I mentioned here.

1 Like
8

I have corrected it, but it still shows the same error.

Solution: CodeChef: Practical coding for everyone

9 
[simon@simon-laptop][10:56:52]
[~/devel/hackerrank/otherpeoples]>./compile-latest-cpp.sh 
Compiling manasvvi1-COPS.cpp
+ g++ -std=c++14 manasvvi1-COPS.cpp -O3 -g3 -Wall -Wextra -Wconversion -DONLINE_JUDGE -D_GLIBCXX_DEBUG -fsanitize=undefined -ftrapv
+ set +x
Successful
[simon@simon-laptop][10:57:03]
[~/devel/hackerrank/otherpeoples]>cat failed_test_case.txt
1
10 5 7
71 39 3 26 69 4 100 20 32 16
[simon@simon-laptop][10:57:05]
[~/devel/hackerrank/otherpeoples]>cat failed_test_case.txt | ./a.out 
manasvvi1-COPS.cpp:29:30: runtime error: index 400 out of bounds for type 'int [400]'
manasvvi1-COPS.cpp:29:31: runtime error: store to address 0x7ffedfacf760 with insufficient space for an object of type 'int'
0x7ffedfacf760: note: pointer points here
 74 00 00 00  01 00 00 00 00 00 00 00  00 39 8b 59 ef dc 28 4b  40 db c7 c7 b7 7f 00 00  00 00 00 00
              ^ 
manasvvi1-COPS.cpp:36:30: runtime error: index 419 out of bounds for type 'int [400]'
manasvvi1-COPS.cpp:36:31: runtime error: store to address 0x7ffedfacf7ac with insufficient space for an object of type 'int'
0x7ffedfacf7ac: note: pointer points here
  87 00 00 00 b7 7f 00 00  00 00 00 00 00 00 00 00  88 f8 ac df fe 7f 00 00  c0 7f bd c6 01 00 00 00
              ^ 
manasvvi1-COPS.cpp:47:28: runtime error: index 400 out of bounds for type 'int [400]'
manasvvi1-COPS.cpp:47:28: runtime error: load of address 0x7ffedfacf760 with insufficient space for an object of type 'int'
0x7ffedfacf760: note: pointer points here
 74 00 00 00  75 00 00 00 76 00 00 00  77 00 00 00 78 00 00 00  79 00 00 00 7a 00 00 00  7b 00 00 00
              ^ 
0
*** stack smashing detected ***: <unknown> terminated
Aborted (core dumped)
10

Can u explain this please? I couldn’t understand!

11

With the testcase:

1
10 5 7
71 39 3 26 69 4 100 20 32 16

you’re still getting out-of-bounds accesses on the line numbers 29, 36 and 28.