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| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
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| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
| ID | Title | Ratio(AC/submit) | Date |
| 1100 | Dreisam Equations | 20%(768/3750) | Sep 1, 2025 |
| 1101 | The Game | 32%(5270/15975) | Sep 10, 2025 |
| 1102 | LC-Display | 40%(6954/17382) | May 23, 2025 |
| 1103 | Maze | 42%(837/1965) | Sep 2, 2025 |
| 1104 | Robbery | 40%(545/1352) | Sep 1, 2025 |
| 1105 | S-Trees | 50%(1576/3147) | May 7, 2025 |
| 1106 | Transmitters | 48%(3654/7611) | Sep 22, 2025 |
| 1107 | W's Cipher | 49%(3020/6136) | Aug 29, 2025 |
| 1108 | Split Windows | 50%(208/416) | Sep 2, 2025 |
| 1109 | Index Generation | 27%(122/442) | Sep 5, 2025 |
| 1110 | Double Vision | 40%(254/627) | Sep 5, 2025 |
| 1111 | Image Perimeters | 57%(6132/10658) | May 3, 2025 |
| 1112 | Team Them Up! | 27%(2538/9312) | Jun 11, 2025 |
| 1113 | Wall | 33%(16357/48450) | Oct 9, 2025 |
| 1114 | Chemical Reactions | 40%(421/1028) | Oct 27, 2024 |
| 1115 | Statistical Trouble | 24%(102/418) | Sep 4, 2025 |
| 1116 | Library | 35%(372/1058) | Nov 6, 2024 |
| 1117 | Pairs of Integers | 25%(1148/4452) | Jul 27, 2025 |
| 1118 | Lining Up | 31%(8693/27936) | Aug 25, 2025 |
| 1119 | Start Up the Startup | 24%(610/2477) | Sep 19, 2024 |
| 1120 | A New Growth Industry | 47%(1358/2876) | Aug 18, 2024 |
| 1121 | Algernon's Noxious Emissions | 32%(174/528) | Aug 18, 2024 |
| 1122 | FDNY to the Rescue! | 31%(1132/3604) | Jul 14, 2024 |
| 1123 | For the Porsche | 30%(162/537) | Sep 12, 2024 |
| 1124 | Oh, Those Achin' Feet | 27%(155/568) | Oct 27, 2024 |
| 1125 | Stockbroker Grapevine | 56%(25672/45707) | Sep 2, 2025 |
| 1126 | Simply Syntax | 44%(2672/5995) | May 20, 2025 |
| 1127 | Jack Straws | 44%(3090/6909) | Aug 18, 2025 |
| 1128 | Frame Stacking | 34%(2233/6447) | Aug 9, 2025 |
| 1129 | Channel Allocation | 50%(11395/22703) | Sep 27, 2025 |
| 1130 | Alien Security | 37%(1196/3228) | Jul 27, 2025 |
| 1131 | Octal Fractions | 53%(4550/8560) | Jul 27, 2025 |
| 1132 | Border | 47%(2061/4305) | Nov 15, 2024 |
| 1133 | Stars | 17%(196/1114) | May 13, 2025 |
| 1134 | Hexagon | 43%(218/498) | Sep 6, 2025 |
| 1135 | Domino Effect | 24%(3375/13520) | Jun 28, 2025 |
| 1136 | Pendulum | 19%(96/495) | Sep 8, 2025 |
| 1137 | The New Villa | 29%(602/2018) | Mar 14, 2025 |
| 1138 | Ships | 13%(147/1084) | Sep 6, 2025 |
| 1139 | Cat and Mouse | 31%(386/1213) | May 13, 2025 |
| 1140 | Expanding Fractions | 37%(1482/3904) | May 15, 2025 |
| 1141 | Brackets Sequence | 28%(11724/40963) | Sep 23, 2025 |
| 1142 | Smith Numbers | 33%(5456/16443) | Jul 24, 2025 |
| 1143 | Number Game | 41%(1780/4314) | Oct 17, 2024 |
| 1144 | Network | 42%(10649/25128) | Oct 9, 2025 |
| 1145 | Tree Summing | 25%(2331/9071) | Aug 1, 2025 |
| 1146 | ID Codes | 58%(5252/9055) | Aug 24, 2025 |
| 1147 | Binary codes | 39%(2598/6535) | May 19, 2025 |
| 1148 | Utopia Divided | 36%(447/1212) | Sep 21, 2025 |
| 1149 | PIGS | 44%(11964/26675) | Sep 2, 2025 |
| 1150 | The Last Non-zero Digit | 31%(1911/6115) | May 21, 2025 |
| 1151 | Atlantis | 33%(12584/37716) | Oct 9, 2025 |
| 1152 | An Easy Problem! | 25%(2491/9588) | May 19, 2025 |
| 1153 | SAFE | 23%(269/1123) | Sep 1, 2025 |
| 1154 | LETTERS | 44%(4454/10028) | Aug 13, 2025 |
| 1155 | TELE | 55%(3985/7189) | Aug 2, 2025 |
| 1156 | A STRIP OF LAND | 29%(2106/7021) | Sep 1, 2025 |
| 1157 | LITTLE SHOP OF FLOWERS | 45%(11493/25228) | Jul 30, 2025 |
| 1158 | TRAFFIC LIGHTS | 41%(3143/7524) | Jul 23, 2024 |
| 1159 | Palindrome | 35%(28319/80761) | Oct 9, 2025 |
| 1160 | Post Office | 53%(13521/25413) | Sep 5, 2025 |
| 1161 | Walls | 47%(3958/8398) | Jun 23, 2023 |
| 1162 | Building with Blocks | 27%(162/596) | Aug 13, 2024 |
| 1163 | The Triangle | 59%(46457/78097) | Sep 22, 2025 |
| 1164 | The Castle | 55%(5780/10457) | Sep 1, 2025 |
| 1165 | The Primes | 39%(895/2262) | Dec 27, 2024 |
| 1166 | The Clocks | 41%(8600/20764) | Sep 24, 2025 |
| 1167 | The Buses | 27%(2238/8156) | Jul 30, 2025 |
| 1168 | The Circle | 28%(292/1030) | Dec 3, 2024 |
| 1169 | Packing Rectangles | 48%(690/1415) | Jun 21, 2025 |
| 1170 | Shopping Offers | 42%(2652/6273) | Sep 2, 2025 |
| 1171 | Letter Game | 27%(3419/12498) | May 22, 2025 |
| 1172 | Street Race | 22%(304/1327) | Sep 18, 2024 |
| 1173 | Bar Codes | 36%(504/1368) | Sep 8, 2025 |
| 1174 | Contact | 27%(813/2925) | Jul 30, 2024 |
| 1175 | Starry Night | 37%(875/2320) | May 18, 2025 |
| 1176 | Party Lamps | 33%(1733/5223) | Feb 24, 2025 |
| 1177 | Picture | 50%(9058/17971) | Sep 20, 2025 |
| 1178 | Camelot | 44%(1883/4211) | Dec 26, 2024 |
| 1179 | Polygon | 42%(3698/8668) | Sep 14, 2025 |
| 1180 | Batch Scheduling | 46%(2849/6184) | Sep 11, 2025 |
| 1181 | Bus Terminals | 30%(229/760) | Jun 7, 2024 |
| 1182 | 食物链 | 30%(45068/149332) | Oct 9, 2025 |
| 1183 | 反正切函数的应用 | 35%(5943/16557) | Jul 27, 2025 |
| 1184 | 聪明的打字员 | 22%(2153/9444) | Sep 3, 2025 |
| 1185 | 炮兵阵地 | 38%(17017/44392) | Oct 1, 2025 |
| 1186 | 方程的解数 | 32%(3034/9250) | Aug 18, 2025 |
| 1187 | 陨石的秘密 | 39%(1200/3038) | May 23, 2025 |
| 1188 | Gleaming the Cubes | 52%(831/1579) | May 6, 2025 |
| 1189 | 钉子和小球 | 31%(2994/9471) | May 6, 2025 |
| 1190 | 生日蛋糕 | 35%(13164/36947) | Sep 24, 2025 |
| 1191 | 棋盘分割 | 35%(6486/18203) | Sep 24, 2025 |
| 1192 | 最优连通子集 | 52%(1915/3628) | May 6, 2025 |
| 1193 | 内存分配 | 20%(1173/5816) | Sep 22, 2025 |
| 1194 | HIDDEN CODES | 20%(139/684) | Mar 6, 2025 |
| 1195 | Mobile phones | 44%(12798/28497) | Sep 27, 2025 |
| 1196 | Twofive | 31%(182/569) | Sep 4, 2025 |
| 1197 | Depot | 24%(140/570) | Sep 14, 2024 |
| 1198 | Solitaire | 32%(1710/5183) | May 13, 2025 |
| 1199 | Left labyrinths | 20%(134/646) | May 5, 2025 |
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