TICTACTO - Editorial

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.

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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Explained 2d prefix sum & 3d prefix sum