Starlight: List of Problems

Login | Register

Over 20,000 problems available. AMC 8/10/12 and AIME problems from 2010-2023; USAJMO/USAMO problems from 2002-2023 available. USACO problems from 2014 to 2023 (all divisions). Codeforces, AtCoder, DMOJ problems are added daily around 04:00 AM UTC, which may cause disruptions.

Reset
Filter by type: All Codeforces AtCoder DMOJ USACO AMC 8 AMC 10 AMC 12 AIME USAJMO USAMO

Need help searching? Click for format/examples of problems

ID Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)
19821 DMOJ New Year's '19 P2 - Ball Sculpture
19820 DMOJ New Year's '19 P1 - Snowball Fight
19819 DMOJ New Year's '18 P8 - Snowy Streets
19818 DMOJ New Year's '18 P7 - Tree of Life
19817 DMOJ New Year's '18 P6 - Old Christmas Lights II
19816 DMOJ New Year's '18 P5 - Hanoi Heuristics
19815 DMOJ New Year's '18 P4 - The Polar Express
19814 DMOJ New Year's '18 P3 - World Domination Fun
19813 DMOJ New Year's '18 P2 - Mimi and Christmas Cake
19812 DMOJ New Year's '18 P1 - Happy New Year!
19811 DMOJ New Year's '17 P8 - Boxen in Boxen
19810 DMOJ New Year's '17 P7 - Santa's Deliveries
19809 DMOJ New Year's '17 P6 - Christmas Cards
19808 DMOJ New Year's '17 P5 - The Christmas Swap
19807 DMOJ New Year's '17 P4 - Christmas Cozonac
19806 DMOJ New Year's '17 P3 - Fibonacci Presents
19805 DMOJ New Year's '17 P2 - Peter's Escape
19804 DMOJ New Year's '17 P1 - Mr. N and Presents
19803 DMOJ New Year's '16 P8 - S-NO-wall
19802 DMOJ New Year's '16 P7 - Old Christmas Lights
19801 DMOJ New Year's '16 P6 - Cake Balancing
19800 DMOJ New Year's '16 P5 - Eggnog Dilemma
19799 DMOJ New Year's '16 P4 - DIY Christmas Tree
19798 DMOJ New Year's '16 P3 - Arithmetic Snowman
19797 DMOJ New Year's '16 P2 - The 365 Days of Christmas
19796 DMOJ New Year's '16 P1 - Late Christmas Shopping
19795 DMOJ New Year's '15 P6 - Tiles
19794 DMOJ New Year's '15 P5 - Message to Mars
19793 DMOJ New Year's '15 P4 - Leftover Eggnog
19792 DMOJ New Year's '15 P3 - Gift Wrap
19791 DMOJ New Year's '15 P2 - Food Selection
19790 DMOJ New Year's '15 P1 - Invitation Devastation
19789 DMOJ Yet Another Contest 6 P6 - No More Snakes and Ladders
19788 DMOJ Yet Another Contest 6 P5 - No More Coyotes
19787 DMOJ Yet Another Contest 6 P4 - No More Nails!
19786 DMOJ Yet Another Contest 6 P3 - No More Cell Phone Messaging
19785 DMOJ Yet Another Contest 6 P2 - No More Telemarketers
19784 DMOJ Yet Another Contest 6 P1 - No More Separation
19783 DMOJ Yet Another Contest 5 P5 - No More Concerts
19782 DMOJ Yet Another Contest 5 P4 - Nils++
19781 DMOJ Yet Another Contest 5 P3 - Potted Plants
19780 DMOJ Yet Another Contest 5 P2 - Big Score
19779 DMOJ Yet Another Contest 5 P1 - Number Pyramid
19778 DMOJ Yet Another Contest 4 P6 - No More Solitaire
19777 DMOJ Yet Another Contest 4 P5 - Signpost
19776 DMOJ Yet Another Contest 4 P4 - Even The Odds
19775 DMOJ Yet Another Contest 4 P3 - Canadian Cactus Competition
19774 DMOJ Yet Another Contest 4 P2 - Alchemy 2
19773 DMOJ Yet Another Contest 4 P1 - Snap
19772 DMOJ Yet Another Contest 3 P5 - No More Thieves
View links to all pages 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497

AboutPrivacy NoticeRulesProblems listJournalYour profileGitHub

Moon Symbol icon by Icons8Sun icon by Icons8 • Emojis from Twemoji by Twitter under CC by 4.0