MTHUR - grace marks
In earlier days , grading in BITS used to be absolute , instead of relative grading scheme .
Once Professor Mathur decided to conduct a surprise quiz, and many students were caught unaware of it.
Their scores of the students came out to be much worse than the previous years scores.
Professor Mathur really believed that true test of talent comes in difficult situations and continued such horrifying sequences of tests . But finally poor placements of his students turned the heat up for the professor and he decided to revise everyone's marks .
Now being a qualified mathematician , professor mathur applied a simple strategy to this.
He decided to award some constant grace marks to each and every student.
He took every students last year marks and then added up the absolute difference with the
revised current year marks . And he decided to choose the grace marks with the least sum of absolute difference .
ie. sum( abs (a[i] - (b[i]+grace) ) ) should be minimum .
Also , prof. Mathur had a knack of choosing the grace value from his very set of favourite numbers .
Now that our students are happily placed in 'Microsoft' , 'Adobe' for the good , credit finally goes to professor "mathur" .
Now , decide for each input ,what grace marks were given by mathur .
(if there are many such grace marks , choose the lowest one) .
First line , t for number of testcases. Next 5*t line for each testcase .
First line of every testcase : integer n.
Second line : n integers showing previous years marks of every student .
Third line : n integers showing present years marks of every student .
Fourth line : intger m
Fifth line : m integers showing the possible values for grace marks
Output the expected grace marks .
9 10 7 3 10
4 1 4 1 3
0 1 2 3 4 5
number of testcases , t < 20
maximum number of students : n < 10000
1 <= m,marks[i] <= 50000
Make sure in case of equal cost return the one with minimum grace marks added.
first question on unimodal function, :)
AC after 9 WA & 1 RTE........!
(if there are many such grace marks , choose the lowest one) . -> caused 2 WA's
Grace marks are sorted? They have to be?
@Gaurav- reset your variables lsum,ls for each test case. Avoid using same loop variables(i here) for inner and outer loops. Your algo is O(n*m) which will be TLE probably
then choose the mminimum of such grace values.
@Romal Thoppilan IS IT POSSIBLE THAT WE CAN HAVE SAME SUM FOR TWO GRACE VALUES???
|Added by:||Romal Thoppilan|
|Cluster:||Cube (Intel G860)|
|Languages:||All except: ASM32-GCC ASM64 MAWK BC C-CLANG CPP14 CPP14-CLANG COBOL COFFEE D-CLANG D-DMD DART ELIXIR FANTOM FORTH GOSU GRV JS-MONKEY KTLN NIM NODEJS OBJC OBJC-CLANG OCT PERL6 PICO PROLOG PYPY PY_NBC R RACKET RUST CHICKEN SQLITE SWIFT UNLAMBDA VB.NET|