TICTACTO - Editorial

Although my code may fail on large test cases, but can anyone tell me why my code is causing runtime error
Submission
Thank You :slight_smile:

This is the same pattern of this binary search problem.

It’s because this block:

 if (zz == 1)
        {
            continue;
        }

prevents you reading the rest of the testcase input when you think you know the answer, so it gets left in the stdin buffer, so the next testcase is read in incorrectly.

Just move it down to just after the cin>>t1>>t2; line.

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Thanks for pointing out the error. :slight_smile:

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thanks for considering the subtask and giving the solution for that also

i wrote the exact same code for second subtask but still getting TLE on second subtask
help

Why my solution is giving TLE . I have done the same thing
https://www.codechef.com/viewsolution/48385136

Their loss :slightly_smiling_face:

Consider the test input:

2
3 4 2
1 1
3 1
1 2
2 3
2 1
2 4
3 2
3 4
1 3
3 3
2 2
1 4
3 4 2
1 1
3 1
1 2
2 3
2 1
2 4
3 2
3 4
1 3
3 3
2 2
1 4
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Great Editorial. I must say, CC’s Editorails are better than CF’s in some rated contests.
Kudos !!!

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what is its output

It’s just the sample input from the Problem Statement, repeated, so:

Bob
Bob

and what should be the correct output for this

Alice
Win at turn # 33 for: Alice: 
 B B A A A A B 
 B B A A A B A 
 B B A[A]A B B 
 B A B B A B . 
 . A B A B A A 

can someone explain why I am getting runtime error.
https://www.codechef.com/submit/TICTACTO

Oh sorry

https://www.codechef.com/viewsolution/50157148

Please check it.

No problem; thanks!

Edit:

Out-of-bounds access on the sample test input:

[simon@simon-laptop][17:59:46]
[~/devel/hackerrank/otherpeoples]>./compile-latest-cpp.sh 
Compiling maxistein-TICTACTO.cpp
+ g++ -std=c++14 maxistein-TICTACTO.cpp -O3 -g3 -Wall -Wextra -Wconversion -DONLINE_JUDGE -D_GLIBCXX_DEBUG -fsanitize=undefined -ftrapv -fno-sanitize-recover
maxistein-TICTACTO.cpp: In function ‘Triplet gcdExtended(long long int, long long int)’:
maxistein-TICTACTO.cpp:33:36: warning: conversion to ‘__gnu_cxx::__enable_if<true, double>::__type {aka double}’ from ‘long long int’ may alter its value [-Wconversion]
     myans.y=ans.x - floor(a/b)*ans.y;
                                ~~~~^
maxistein-TICTACTO.cpp:33:17: warning: conversion to ‘__gnu_cxx::__enable_if<true, double>::__type {aka double}’ from ‘long long int’ may alter its value [-Wconversion]
     myans.y=ans.x - floor(a/b)*ans.y;
             ~~~~^
maxistein-TICTACTO.cpp:33:19: warning: conversion to ‘long long int’ from ‘__gnu_cxx::__enable_if<true, double>::__type {aka double}’ may alter its value [-Wfloat-conversion]
     myans.y=ans.x - floor(a/b)*ans.y;
             ~~~~~~^~~~~~~~~~~~~~~~~~
maxistein-TICTACTO.cpp: In function ‘int gcd(long long int, long long int)’:
maxistein-TICTACTO.cpp:38:12: warning: conversion to ‘int’ from ‘long long int’ may alter its value [-Wconversion]
     return a;
            ^
+ set +x
Successful
[simon@simon-laptop][17:59:51]
[~/devel/hackerrank/otherpeoples]>echo "1                                                       
3 4 2
1 1
3 1
1 2
2 3
2 1
2 4
3 2
3 4
1 3
3 3
2 2
1 4" | ./a.out
maxistein-TICTACTO.cpp:81:46: runtime error: index 4 out of bounds for type 'int [*]'

Edit2:

Also, potentially, this:

int temp[n+1][n+1];

See e.g. c - Getting a stack overflow exception when declaring a large array - Stack Overflow

(but I’d fix the out-of-bounds access and re-submit before changing this bit - it might be a non-issue).

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Oh, thank you so much !!!

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