ID Problem Show tags Hide tags AC / Tried Difficulty
1644 P1601A   Array Elimination 0 / 0 4
1635 P1601F   Two Sorts 0 / 0 10
1632 P1603A   Di-visible Confusion 0 / 0 4
1631 P1603B   Moderate Modular Mode 1 / 1 5
1630 P1603C   Extreme Extension 0 / 0 8
1627 P1603E   A Perfect Problem 0 / 0 10
1626 P1603F   October 18, 2017 0 / 0 10
1623 P1605A   A.M 0 / 0 3
1619 P1605E   Array Equalizer 0 / 0 9
1615 P1606B   Update Files 0 / 0 3
1612 P1606E   Arena 0 / 0 7
1608 P1607B   Odd Grasshopper 0 / 0 3
1606 P1607D   Blue-Red Permutation 0 / 0 4
1597 P1608A   Find Array 0 / 0 3
1590 P1608D   Dominoes 0 / 0 9
1583 P1609A   Divide and Multiply 0 / 0 3
1573 P1609G   A Stroll Around the Matrix 0 / 0 10
1571 P1610A   Anti Light's Cell Guessing 0 / 0 3
1568 P1610D   Not Quite Lee 0 / 0 7
1567 P1610E   AmShZ and G.O.A.T. 0 / 0 8
1562 P1611A   Make Even 0 / 0 3
1561 P1611B   Team Composition: Programmers and Mathematicians 0 / 0 3
1552 P1612C   Chat Ban 0 / 0 4
1551 P1612D   X-Magic Pair 0 / 0 5
1547 P1613A   Long Comparison 0 / 0 3
1544 P1613D   MEX Sequences 0 / 0 6
1539 P1614C   Divan and bitwise operations 0 / 0 5
1535 P1615A   Closing The Gap 0 / 0 3
1534 P1615B   And It's Non-Zero 0 / 0 4
1533 P1615C   Menorah 0 / 0 5
1531 P1615E   Purple Crayon 0 / 0 9
1530 P1615F   LEGOndary Grandmaster 0 / 0 10
1525 P1616C   Representative Edges 0 / 0 5
1524 P1616D   Keep the Average High 0 / 0 7
1522 P1616F   Tricolor Triangles 0 / 0 10
1520 P1616H   Keep XOR Low 0 / 0 10
1518 P1617B   GCD Problem 0 / 0 3
1517 P1617C   Paprika and Permutation 0 / 0 4
1515 P1617D2   Too Many Impostors (hard version) 0 / 0 9
1514 P1617E   Christmas Chocolates 0 / 0 10
1513 P1618A   Polycarp and Sums of Subsequences 0 / 0 3
1511 P1618C   Paint the Array 0 / 0 3
1510 P1618D   Array and Operations 0 / 0 4
1509 P1618E   Singers' Tour 0 / 0 5
1508 P1618F   Reverse 0 / 0 7
1505 P1619B   Squares and Cubes 0 / 0 3
1502 P1619E   MEX and Increments 0 / 0 5
1501 P1619F   Let's Play the Hat? 0 / 0 7
1497 P1620B   Triangles on a Rectangle 0 / 0 3
1496 P1620C   BA-String 0 / 0 6
1489 P1621C   Hidden Permutations 0 / 0 5
1488 P1621D   The Winter Hike 0 / 0 7
1485 P1621G   Weighted Increasing Subsequences 0 / 0 10
1482 P1622A   Construct a Rectangle 0 / 0 3
1481 P1622B   Berland Music 0 / 0 3
1479 P1622D   Shuffle 0 / 0 7
1477 P1622F   Quadratic Set 0 / 0 10
1476 P1623A   Robot Cleaner 1 / 3 3
1473 P1623D   Robot Cleaner Revisit 0 / 0 8
1471 P1624A   Plus One on the Subset 0 / 0 3
1470 P1624B   Make AP 0 / 0 3
1469 P1624C   Division by Two and Permutation 0 / 0 3
1464 P1625A   Ancient Civilization 0 / 0 3
1461 P1625D   Binary Spiders 0 / 0 8
1456 P1626C   Monsters And Spells 0 / 0 5
1455 P1626D   Martial Arts Tournament 0 / 0 7
1453 P1626F   A Random Code Problem 0 / 0 10
1447 P1627D   Not Adding 0 / 0 6
1441 P1628A   Meximum Array 0 / 0 4
1437 P1628C   Grid Xor 0 / 0 8
1435 P1628D1   Game on Sum (Easy Version) 0 / 0 7
1434 P1628D2   Game on Sum (Hard Version) 0 / 0 9
1425 P1629B   GCD Arrays 0 / 0 3
1416 P1630E   Expected Components 0 / 0 10
1406 P1632C   Strange Test 0 / 0 5
1404 P1632D   New Year Concert 0 / 0 7
1399 P1633C   Kill the Monster 0 / 0 3
1397 P1633E   Spanning Tree Queries 0 / 0 9
1394 P1634B   Fortune Telling 0 / 0 4
1392 P1634D   Finding Zero 0 / 0 7
1390 P1634F   Fibonacci Additions 0 / 0 10
1386 P1635D   Infinite Set 0 / 0 6
1382 P1637B   MEX and Array 0 / 0 3
1380 P1637D   Yet Another Minimization Problem 0 / 0 6
1377 P1637G   Birthday 0 / 0 10
1376 P1637H   Minimize Inversions Number 0 / 0 10
1375 P1638A   Reverse 0 / 0 3
1374 P1638B   Odd Swap Sort 0 / 0 3
1373 P1638C   Inversion Graph 0 / 0 4
1355 P1641D   Two Arrays 0 / 1 10
1354 P1641E   Special Positions 0 / 0 10
1347 P1644D   Cross Coloring 0 / 0 5
1346 P1644E   Expand the Path 0 / 0 6
1345 P1644F   Basis 0 / 0 10
1344 P1646A   Square Counting 0 / 0 3
1342 P1646C   Factorials and Powers of Two 0 / 0 5
1340 P1646E   Power Board 0 / 0 8
1338 P1647A   Madoka and Math Dad 0 / 0 3
1335 P1647D   Madoka and the Best School in Russia 0 / 0 6
1332 P1648A   Weird Sum 0 / 0 4

Categories

Lucky

Pick a problem randomly based on the current filter.