Anagram

Solutions Possible C++ Solution: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 #include <set>#include <cstdio>#include <vector>#include <iostream>#include <algorithm>using namespace std; int main() { int T; cin >> T; string s; while (T--) { cin >> s; if (s.size() % 2) { cout << -1 << endl; continue; } multiset<char> inters; const auto splitIt = begin(s)+(s. [Read More]

Happy Ladybugs

Solutions This problem can be solved by considering a few things: 1) if a ladybug’s color is unique in the set, the ladybug will never be happy (the solution is “NO”); 2) if 1) does not occur and if there is at least one empty cell, then the solution is always “YES” since it’s always possible to rearrange the ladybugs in the best position; 3) if 2) does not occur then the solution is “YES” only if all the ladybugs are already happy (because they cannot be moved) [Read More]