C. Jzzhu and Chocolate
time limit per test: 1 seconds
memory limit per test: 256 megabytes
input: standard input
output: standard output
Jzzhu has a b ......
D. Jzzhu and Cities
time limit per test: 2 seconds
memory limit per test: 256 megabytes
input: standard input
output: standard output
Jzzhu is the pre ......