【POJ】[3122]Pie【POJ】[3176]Cow Bowling【POJ】[3187]Backward Digit Sums【POJ】[3253]Fence Repair【POJ】[3258]River Hopscotch【POJ】[3273]Monthly Expense【POJ】[3279]Fliptile【POJ】[3620]Avoid The Lakes【POJ】[3641]Pseudoprime numbers【UVa】[10006]Carmichael Numbers«««3435363738»»»