SCUSA Prelim

Problem Statements (PDFs)

ProblemSample InputSample Output
Quick Changea-in.txta-out.txt
Triangular Sumsb-in.txtb-out.txt
Shuffle Them Upc-in.txtc-out.txt
Push Button Lockd-in.txtd-out.txt
Sign Message Formattinge-in.txte-out.txt
Visibile Lattice Pointsf-in.txtf-out.txt
Nondivisible 2-3 Power Sumsh-in.txth-out.txt
Margaritas on the Riverwalki-in.txti-out.txt

These problems were borrowed from the 2006 ACM Greater New York Regional Programming Contest. Please enjoy them!