ID Title Ratio(AC/Submit)
1200 How many squares 336/948
1201 Czyptoghophy 9/38
1202 Easy task 170/360
1203 Union 38/239
1204 Mixed up numbers 37/158
1205 Primes' Sum 82/324
1206 Linear Algebra 43/69
1207 PB 125/196
1208 Operator + and operator ^ 130/498
1209 Playing games 63/133
1210 Is it possible? 13/74
1211 Mr. Y's investment plan 14/150
1212 Cubic-free numbers I 216/479
1213 Prime's Sum Again 18/118
1214 Cubic-free numbers II 92/798
1215 The expected distance 3/58
1216 Birds 13/109
1217 How many solutions? 78/172
1218 Acman and his GirlFriend 29/98
1219 Balance Binary Search Tree 19/149
1220 Coins 17/65
1221 Derangement 2/3
1222 Easy or Hard 212/538
1223 Friends 11/37
1224 God’s Palace 4/18
1225 Help! 3/8
1226 Integers 5/63
1227 Join Together 11/25
1228 区间合并 33/133
1229 Periodic Operation 6/24
1230 beautiful 44/151
1231 Coin 12/43
1232 dangerous 6/63
1233 Let's play a game 101/411
1234 Minimum Power 65/198
1235 Beauty of sceneries 76/285
1236 Sort The Number 35/207
1237 True or False? 97/228
1238 Message 57/200
1239 I am a PR man 78/338
1240 Yet Another A+B Problem 34/139
1241 Cube Tower 1 16/51
1242 Cube Tower 2 8/52
1243 Compare 88/179
1244 Fibonacci numbers 77/204
1245 inversion pair I 92/130
1246 inversion pair II 84/377
1247 LL's lock 52/91
1248 Frog's insects 55/208
1249 LL's cafe 49/148