chenghaojia's Competition History

Date Contest Rank Performance New Rating Diff
HHKB Programming Contest 2023(AtCoder Beginner Contest 327) 9215 49 2 -
TOYOTA SYSTEMS Programming Contest 2023(AtCoder Beginner Contest 330) 3092 882 67 +65
Daiwa Securities Co. Ltd. Programming Contest 2023(AtCoder Beginner Contest 331) 1347 - - -
UNIQUE VISION Programming Contest 2023 Christmas (AtCoder Beginner Contest 334) 9927 - - -
AtCoder Beginner Contest 336 2645 993 202 +135
Toyota Programming Contest 2024#1(AtCoder Beginner Contest 337) 2063 1227 436 +234
AtCoder Regular Contest 170 1321 1249 623 +187
AtCoder Beginner Contest 338 1404 1343 771 +148
Japan Registry Services (JPRS) Programming Contest 2024 (AtCoder Beginner Contest 339) 1972 1246 854 +83
AtCoder Regular Contest 171 2073 245 774 -80
Toyota Programming Contest 2024#2(AtCoder Beginner Contest 341) 833 1647 941 +167
Toyota Programming Contest 2024#3(AtCoder Beginner Contest 344) 911 1606 1053 +112
Monoxer Programming Contest 2024(AtCoder Beginner Contest 345) 290 2091 1251 +198
UNIQUE VISION Programming Contest 2024 Spring(AtCoder Beginner Contest 346) 1975 1242 1249 -2
AtCoder Beginner Contest 347 1924 1243 1247 -2
AtCoder Beginner Contest 349 1323 1443 1271 +24
AtCoder Beginner Contest 350 1068 1557 1308 +37
AtCoder Beginner Contest 352 2235 1185 1294 -14
Panasonic Programming Contest 2024(AtCoder Beginner Contest 354) 773 1704 1348 +54
Tokio Marine & Nichido Fire Insurance Programming Contest 2024 (AtCoder Beginner Contest 355) 2024 1204 1332 -16
AtCoder Beginner Contest 356 3497 983 1298 -34
SuntoryProgrammingContest2024(AtCoder Beginner Contest 357) 645 1800 1365 +67
UNIQUE VISION Programming Contest 2024 Summer (AtCoder Beginner Contest 359) 2098 1239 1352 -13
Denso Create Programming Contest 2024(AtCoder Beginner Contest 361) 991 1635 1386 +34
Toyota Programming Contest 2024#7(AtCoder Beginner Contest 362) 745 1731 1428 +42
AtCoder Beginner Contest 363 2383 1171 1403 -25
Japan Registry Services (JPRS) Programming Contest 2024#2 (AtCoder Beginner Contest 364) 563 - - -
Toyota Programming Contest 2024#8(AtCoder Beginner Contest 365) 2026 1266 1389 -14
AtCoder Regular Contest 181 1663 1048 1358 -31
AtCoder Beginner Contest 366 1620 1378 1360 +2
AtCoder Regular Contest 182 846 1561 1382 +22
AtCoder Beginner Contest 367 806 1703 1420 +38
AtCoder Grand Contest 067 391 - - -
Hitachi Vantara Programming Contest 2024(AtCoder Beginner Contest 368) 1052 1571 1436 +16
Marubeni Programming Contest 2024 (AtCoder Regular Contest 183) 816 1543 1448 +12
AtCoder Beginner Contest 369 1229 1486 1452 +4
Toyota Programming Contest 2024#9(AtCoder Beginner Contest 370) 1049 1583 1466 +14
UNIQUE VISION Programming Contest 2024 Autumn (AtCoder Beginner Contest 372) 1354 1400 1459 -7
Panasonic Programming Contest 2024(AtCoder Beginner Contest 375) 2232 1214 1437 -22
AtCoder Regular Contest 185 875 1539 1447 +10
AtCoder Beginner Contest 376 3228 995 1409 -38
AtCoder Regular Contest 186 515 - - -
AtCoder Beginner Contest 378 910 1617 1432 +23
Toyota Programming Contest 2024#11(AtCoder Beginner Contest 379) 463 1872 1485 +53
AtCoder Beginner Contest 380 908 1633 1501 +16
AtCoder Regular Contest 187 1071 1007 1459 -42
AtCoder Beginner Contest 381 477 1808 1500 +41
estie Programming Contest 2024 (AtCoder Regular Contest 188) 881 1162 1470 -30
AtCoder Grand Contest 069 180 - - -
AtCoder Beginner Contest 382 594 1675 1492 +22
Daiwa Securities Co. Ltd. Programming Contest 2024(AtCoder Beginner Contest 383) 463 1866 1536 +44
AtCoder Regular Contest 189 (Div. 2) 468 1843 1571 +35
Toyota Programming Contest 2024#12(AtCoder Beginner Contest 384) 1599 1311 1547 -24
UNIQUE VISION Programming Contest 2024 Christmas (AtCoder Beginner Contest 385) 1473 1355 1529 -18
AtCoder Beginner Contest 386 882 1548 1531 +2
AtCoder Grand Contest 070 270 - - -
AtCoder Beginner Contest 387 692 1688 1548 +17
HHKB Programming Contest 2025(AtCoder Beginner Contest 388) 3490 - - -
AtCoder Regular Contest 190 (Div. 1) 670 - - -
Toyota Programming Contest 2025(AtCoder Beginner Contest 389) 394 1954 1596 +48
AtCoder Beginner Contest 390 588 1795 1617 +21
AtCoder Regular Contest 191 (Div. 2) 571 1691 1625 +8
Japan Registry Services (JPRS) Programming Contest 2025#1 (AtCoder Beginner Contest 392) 428 1960 1663 +38
AtCoder Regular Contest 192 (Div. 2) 665 1694 1666 +3
AtCoder Beginner Contest 393 2554 1117 1622 -44
KAJIMA CORPORATION CONTEST 2025 (AtCoder Beginner Contest 394) 2110 1223 1587 -35
AtCoder Regular Contest 193 (Div. 1) 473 - - -
AtCoder Beginner Contest 396 848 1639 1593 +6
OMRON Corporation Programming Contest 2025 (AtCoder Beginner Contest 397) 5369 675 1527 -66
UNIQUE VISION Programming Contest 2025 Spring (AtCoder Beginner Contest 398) 1039 1524 1527 ±0
AtCoder Beginner Contest 399 3260 983 1483 -44
AtCoder Beginner Contest 400 10822 - - -
AtCoder Regular Contest 197 (Div. 2) 766 1540 1489 +6
AtCoder Beginner Contest 405 427 1920 1540 +51
Panasonic Programming Contest 2025(AtCoder Beginner Contest 406) 3615 912 1490 -50
AtCoder Beginner Contest 407 583 1775 1522 +32
AtCoder Beginner Contest 408 1496 1344 1506 -16
AtCoder Regular Contest 199 (Div. 1) 247 - - -
AtCoder Beginner Contest 409 1013 1539 1509 +3
AtCoder Beginner Contest 410 2554 1105 1474 -35
UNIQUE VISION Programming Contest 2025 Summer (AtCoder Beginner Contest 411) 6950 - - -
Mirrativ Programming Contest 2025 (AtCoder Beginner Contest 414) 1765 1286 1457 -17
AtCoder Regular Contest 202 (Div. 1) 527 - - -
AtCoder Beginner Contest 416 1255 1444 1456 -1
AtCoder Beginner Contest 417 642 1742 1488 +32
AtCoder Regular Contest 203 (Div. 2) 1508 777 1433 -55
AtCoder Beginner Contest 418 998 1543 1445 +12
AtCoder Beginner Contest 419 323 1980 1511 +66
AtCoder Regular Contest 204 (Div. 1) 382 - - -
AtCoder Regular Contest 205 (Div. 2) 415 - - -
AtCoder Beginner Contest 422 5339 - - -
AtCoder Regular Contest 206 (Div. 2) 926 1149 1479 -32
UNIQUE VISION Programming Contest 2025 Autumn (AtCoder Beginner Contest 425) 1630 1270 1460 -19
AtCoder Grand Contest 073 284 - - -
AtCoder Beginner Contest 426 666 1732 1490 +30
AtCoder Regular Contest 207 (Div.1) 522 - - -
Panasonic Programming Contest 2025(AtCoder Beginner Contest 427) 835 1590 1501 +11
AtCoder Regular Contest 208 (Div. 2) 540 1693 1521 +20
AtCoder Beginner Contest 428 416 1868 1561 +40
Polaris.AI Programming Contest 2025(AtCoder Beginner Contest 429) 296 1953 1607 +46
AtCoder Grand Contest 074 285 - - -
AtCoder Beginner Contest 430 7507 - - -
TOYOTA SYSTEMS Programming Contest 2025(AtCoder Beginner Contest 431) 1193 1463 1593 -14
AtCoder Regular Contest 209 (Div. 1) 313 - - -
AtCoder Regular Contest 210 443 1819 1618 +25
AtCoder Beginner Contest 433 2101 1272 1588 -30
AtCoder Regular Contest 211 (Div. 2) 868 887 1534 -54
AtCoder Beginner Contest 436 1602 1395 1521 -13
AtCoder Beginner Contest 444 1375 1514 1520 -1
AtCoder Regular Contest 214 953 1218 1493 -27
AtCoder Beginner Contest 446 1148 1505 1494 +1
AtCoder Regular Contest 215 1010 1027 1455 -39