Chen9's Competition History

Date Contest Duration Rank Performance New Rating Diff
Toyota Programming Contest 2023#7(AtCoder Beginner Contest 328) 01:40 7933 - - -
Sky Inc, Programming Contest 2023(AtCoder Beginner Contest 329) 01:40 6010 - - -
TOYOTA SYSTEMS Programming Contest 2023(AtCoder Beginner Contest 330) 01:40 8506 - - -
Daiwa Securities Co. Ltd. Programming Contest 2023(AtCoder Beginner Contest 331) 01:40 6731 - - -
AtCoder Beginner Contest 332 01:40 6445 197 10 -
Toyota Programming Contest 2023#8(AtCoder Beginner Contest 333) 01:40 11402 - - -
UNIQUE VISION Programming Contest 2023 Christmas (AtCoder Beginner Contest 334) 01:40 7205 266 36 +26
AtCoder Beginner Contest 335 (Sponsored by Mynavi) 01:40 8079 254 61 +25
AtCoder Beginner Contest 336 01:40 5992 366 94 +33
Toyota Programming Contest 2024#1(AtCoder Beginner Contest 337) 01:40 9736 183 105 +11
AtCoder Regular Contest 170 02:00 2058 263 123 +18
AtCoder Beginner Contest 338 01:40 5107 595 169 +46
Japan Registry Services (JPRS) Programming Contest 2024 (AtCoder Beginner Contest 339) 01:40 8882 224 174 +5
AtCoder Regular Contest 171 02:00 2073 245 182 +8
KAJIMA CORPORATION CONTEST 2024(AtCoder Beginner Contest 340) 01:40 5387 512 214 +32
Toyota Programming Contest 2024#2(AtCoder Beginner Contest 341) 01:40 11228 37 179 -35
HUAWEI Programming Contest 2024(AtCoder Beginner Contest 342) 01:40 8477 144 174 -5
AtCoder Beginner Contest 343 01:40 7906 353 191 +17
Toyota Programming Contest 2024#3(AtCoder Beginner Contest 344) 01:40 9157 200 192 +1
Monoxer Programming Contest 2024(AtCoder Beginner Contest 345) 01:40 9449 130 183 -9
UNIQUE VISION Programming Contest 2024 Spring(AtCoder Beginner Contest 346) 01:40 10468 - - -
AtCoder Beginner Contest 347 01:40 10793 97 171 -12
Toyota Programming Contest 2024#4(AtCoder Beginner Contest 348) 01:40 7308 - - -
AtCoder Beginner Contest 349 01:40 9947 46 152 -19
AtCoder Beginner Contest 350 01:40 10156 118 147 -5
AtCoder Beginner Contest 351 01:40 6175 509 175 +28
AtCoder Beginner Contest 352 01:40 10515 92 164 -11
AtCoder Beginner Contest 353 01:40 11059 82 153 -11
Panasonic Programming Contest 2024(AtCoder Beginner Contest 354) 01:40 8425 261 163 +10
Tokio Marine & Nichido Fire Insurance Programming Contest 2024 (AtCoder Beginner Contest 355) 01:40 9955 82 153 -10
AtCoder Beginner Contest 356 01:40 9589 - - -
SuntoryProgrammingContest2024(AtCoder Beginner Contest 357) 01:40 8571 234 160 +7
AtCoder Beginner Contest 358 01:40 10839 - - -
AtCoder Beginner Contest 360 01:40 8139 104 154 -6
Hitachi Vantara Programming Contest 2024(AtCoder Beginner Contest 368) 01:40 9816 95 147 -7
AtCoder Beginner Contest 369 01:40 7406 314 160 +13
Toyota Programming Contest 2024#9(AtCoder Beginner Contest 370) 01:40 6540 507 186 +26
AtCoder Beginner Contest 371 01:40 8718 218 189 +3
AtCoder Beginner Contest 373 01:40 9840 - - -
KEYENCE Programming Contest 2024(AtCoder Beginner Contest 374) 01:40 6193 540 216 +27
Panasonic Programming Contest 2024(AtCoder Beginner Contest 375) 01:40 10168 - - -
AtCoder Beginner Contest 376 01:40 9733 - - -
Toyota Programming Contest 2024#11(AtCoder Beginner Contest 379) 01:40 8217 170 211 -5
AtCoder Beginner Contest 380 01:40 9541 - - -
AtCoder Beginner Contest 382 01:40 8714 44 186 -25
Toyota Programming Contest 2024#12(AtCoder Beginner Contest 384) 01:40 7735 211 189 +3
HHKB Programming Contest 2025(AtCoder Beginner Contest 388) 01:40 8594 - - -
Toyota Programming Contest 2025(AtCoder Beginner Contest 389) 01:40 9441 135 183 -6
AtCoder Beginner Contest 390 01:40 9683 - - -
Japan Registry Services (JPRS) Programming Contest 2025#1 (AtCoder Beginner Contest 392) 01:40 10833 36 161 -22
AtCoder Beginner Contest 393 01:40 6884 414 180 +19
KAJIMA CORPORATION CONTEST 2025 (AtCoder Beginner Contest 394) 01:40 7453 343 193 +13
AtCoder Beginner Contest 395 01:40 10642 103 183 -10
AtCoder Beginner Contest 396 01:40 8991 223 186 +3
OMRON Corporation Programming Contest 2025 (AtCoder Beginner Contest 397) 01:40 10785 98 176 -10
AtCoder Beginner Contest 399 01:40 8965 222 180 +4
AtCoder Beginner Contest 400 01:40 7501 335 193 +13
AtCoder Beginner Contest 401 01:40 10125 118 185 -8
Tokio Marine & Nichido Fire Insurance Programming Contest 2025 (AtCoder Beginner Contest 402) 01:40 8707 147 181 -4
AtCoder Beginner Contest 404 01:40 8421 - - -
AtCoder Beginner Contest 405 01:40 6929 476 203 +22
Panasonic Programming Contest 2025(AtCoder Beginner Contest 406) 01:40 11010 84 188 -15
AtCoder Beginner Contest 407 01:40 8981 221 191 +3
AtCoder Beginner Contest 408 01:40 10041 - - -
AtCoder Beginner Contest 409 01:40 8038 292 200 +9
AtCoder Beginner Contest 410 01:40 7627 304 209 +9
UNIQUE VISION Programming Contest 2025 Summer (AtCoder Beginner Contest 411) 01:40 6206 358 222 +13
AtCoder Beginner Contest 412 01:40 8767 - - -
Denso Create Programming Contest 2025(AtCoder Beginner Contest 413) 01:40 9312 118 209 -13
Mirrativ Programming Contest 2025 (AtCoder Beginner Contest 414) 01:40 8544 195 208 -1
Japan Registry Services (JPRS) Programming Contest 2025#2 (AtCoder Beginner Contest 415) 01:40 8650 163 203 -5
AtCoder Beginner Contest 416 01:40 10558 124 194 -9
AtCoder Beginner Contest 417 01:40 8789 217 196 +2
AtCoder Beginner Contest 418 01:40 8105 288 205 +9
AtCoder Beginner Contest 419 01:40 10665 45 182 -23
AtCoder Beginner Contest 420 01:40 9347 56 165 -17
AtCoder Beginner Contest 421 01:40 6772 481 187 +22
AtCoder Regular Contest 205 (Div. 2) 02:00 2520 - - -
AtCoder Beginner Contest 422 01:40 5339 79 174 -13
AtCoder Beginner Contest 423 01:40 5308 507 198 +24
UNIQUE VISION Programming Contest 2025 Autumn (AtCoder Beginner Contest 425) 01:40 5452 494 221 +23
AtCoder Beginner Contest 426 01:40 9215 164 215 -6
Panasonic Programming Contest 2025(AtCoder Beginner Contest 427) 01:40 8697 - - -
AtCoder Beginner Contest 428 01:40 8093 230 216 +1
Polaris.AI Programming Contest 2025(AtCoder Beginner Contest 429) 01:40 9309 - - -
TOYOTA SYSTEMS Programming Contest 2025(AtCoder Beginner Contest 431) 01:40 5950 407 232 +16
OMRON Corporation Programming Contest 2025 #2 (AtCoder Beginner Contest 432) 01:40 7747 168 225 -7
AtCoder Beginner Contest 433 01:40 8077 250 227 +2
Sky Inc, Programming Contest 2025 (AtCoder Beginner Contest 434) 01:40 6927 180 222 -5
AtCoder Beginner Contest 435 01:40 4373 803 273 +51
AtCoder Beginner Contest 436 01:40 8033 264 272 -1
UNIQUE VISION Programming Contest 2025 Christmas (AtCoder Beginner Contest 437) 01:40 8733 164 260 -12
AtCoder Beginner Contest 438 01:40 9378 56 230 -30
AtCoder Beginner Contest 439 01:40 8271 - - -
AtCoder Beginner Contest 440 01:40 5859 618 262 +32
AtCoder Beginner Contest 441 (Promotion of Engineer Guild Fes) 01:40 5970 603 292 +30
JPRS Programming Contest 2026#1 (AtCoder Beginner Contest 442) 01:40 6636 443 306 +14
Denso Create Programming Contest 2026(AtCoder Beginner Contest 443) 01:40 8594 181 291 -15
AtCoder Beginner Contest 444 01:40 7210 503 310 +19
AtCoder Beginner Contest 446 01:40 6156 361 315 +5
AtCoder Beginner Contest 447 01:40 7467 251 308 -7
AtCoder Beginner Contest 448 01:40 9626 142 288 -20
AtCoder Beginner Contest 449 01:40 5849 652 322 +34
AtCoder Beginner Contest 450 01:40 7896 396 329 +7
AtCoder Beginner Contest 451 01:40 8807 240 319 -10
AtCoder Beginner Contest 452 01:40 10191 121 294 -25
AtCoder Beginner Contest 453 01:40 7989 344 299 +5
Keysight Technologies Programming Contest(AtCoder Beginner Contest 454) 01:40 7367 333 302 +3
Sky Inc, Programming Contest 2026 (AtCoder Beginner Contest 455) 01:40 5689 621 332 +30
Polaris.AI Programming Contest 2026(AtCoder Beginner Contest 457) 01:40 6985 - - -
SMBC Programming Contest #1 (AtCoder Beginner Contest 458) 01:40 11057 44 286 -46
Tokio Marine & Nichido Fire Insurance Programming Contest 2026 (AtCoder Beginner Contest 459) 01:40 11101 - - -
AtCoder Beginner Contest 460 01:40 11116 - - -
CodeQUEEN 2026 -qual- (AtCoder Beginner Contest 462) 01:40 10763 - - -
AtCoder Beginner Contest 466 01:40 7484 490 304 +18
AtCoder Beginner Contest 468 01:40 8569 362 310 +6
AtCoder Beginner Contest 472 01:40 5895 679 346 +36
AtCoder Beginner Contest 473 01:40 7244 445 355 +9
AtCoder Beginner Contest 478 01:40 8111 281 348 -7
SMBC Programming Contest #2 (AtCoder Beginner Contest 481) 01:40 5999 - - -