Problems #2008-TIOJcon-4th

# Name
TopCoder AC Ratio (user) AC (submission)
1238 97.0% (32/33) 49.6% (64/129)
1239 83.3% (10/12) 40.8% (31/76)
1240 86.8% (66/76) 63.8% (153/240)
1241 95.3% (41/43) 61.0% (50/82)
1243 53.8% (7/13) 31.4% (38/121)