HERE this solution accepted in c++17 but https://codeforces.me/contest/1971/submission/290780147 runtime error in c++20/23 i found similar problem same code WA in test 1 int 17 and WA in 2nd test in c++20 !!
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HERE this solution accepted in c++17 but https://codeforces.me/contest/1971/submission/290780147 runtime error in c++20/23 i found similar problem same code WA in test 1 int 17 and WA in 2nd test in c++20 !!
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Well, the compiler is right. Undefined behavior means that the code can have any result. Btw, if I use custom invocation of your accepted solution under c++17 on this test
then I will get: https://imgur.com/a/haQfRI3, which is obliviously WA.
But output correct though ! can you add a little explaination
ll ds = (a[id + 1] — a[id]); ll dt = (b[id + 1] — b[id]);
in these line...the array goes out of bound...!!!(a[id + 1] =>> where id is k)..
and here is the accepted solution code of your code...!!!