Why does this code only get 20 points. https://ideone.com/P1TT3z Problem: https://mirror.codeforces.com/group/swEqtABRxe/contest/243430/problem/B
A Question about a problem
Why does this code only get 20 points. https://ideone.com/P1TT3z Problem: https://mirror.codeforces.com/group/swEqtABRxe/contest/243430/problem/B