A 3389 Quick Change
B 3392 Triangular Sums
C 3418 Shuffle'm Up
D 3498 Push Button Lock
E 3526 Sign Message Formatting
F 3571 Visible Lattice Points
G 3572 Triangular N-Queens Problem
H 3573 Non-divisible 2-3 Power Sums
I 3574 Margaritas on the River Walk

problems at the ACM ICPC Live Archive

Resolvidos:

OK - A Quick Change - nike total
OK - B Triangular Sums - nike total
OK - C Shuffle'm Up - nike total
OK - D Push Button Lock - aritmético + programação dinâmica
   - E Sign Message Formatting
OK - F Visible Lattice Points - aritmético (totiente)
OK - G Triangular N-Queens Problem - provar floor(2*N+1) = MAX  ou seguir o padrao na saida
OK - H Non-divisible 2-3 Power Sums - aritmético
OK - I Margaritas on the River Walk - programação dinâmica