math - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	2795	P1443B Saving the City dp greedy math sortings *1300	0 / 0	4
	2793	P1443E Long Permutation brute force math two pointers *2400	0 / 0	9
	2792	P1444A Division brute force math number theory *1500	0 / 0	5
	2791	P1444B Divide and Sum combinatorics math sortings *1900	0 / 0	6
	2786	P1445B Elimination greedy math *900	0 / 0	3
	2778	P1447A Add Candies constructive algorithms math *800	0 / 0	3
	2777	P1447B Numbers Box greedy math *1000	0 / 0	3
	2774	P1450C1 Errich-Tac-Toe (Easy Version) constructive algorithms math *2100	0 / 0	7
	2773	P1450C2 Errich-Tac-Toe (Hard Version) constructive algorithms math *2300	0 / 0	8
	2768	P1450H1 Multithreading (Easy Version) combinatorics fft math *2900	0 / 0	10
	2767	P1450H2 Multithreading (Hard Version) combinatorics implementation math *3300	0 / 0	10
	2766	P1451A Subtract or Divide greedy math *800	0 / 0	3
	2763	P1451D Circle Game games geometry math *1700	0 / 0	5
	2762	P1451E1 Bitwise Queries (Easy Version) bitmasks constructive algorithms interactive math *2000	0 / 0	7
	2761	P1451E2 Bitwise Queries (Hard Version) bitmasks constructive algorithms interactive math *2300	0 / 0	8
	2759	P1452A Robot Program math *800	0 / 0	3
	2758	P1452B Toy Blocks binary search greedy math sortings *1400	0 / 0	4
	2756	P1452D Radio Towers combinatorics dp math *1600	0 / 0	5
	2749	P1453D Checkpoints brute force constructive algorithms greedy math probabilities *1900	0 / 0	6
	2743	P1454D Number into Sequence constructive algorithms math number theory *1300	0 / 0	4
	2740	P1455A Strange Functions math number theory *800	0 / 0	3
	2739	P1455B Jumps constructive algorithms math *1200	0 / 0	4
	2738	P1455C Ping-pong constructive algorithms games math *1100	0 / 0	3
	2736	P1455E Four Points brute force constructive algorithms flows geometry greedy implementation math ternary search *2400	0 / 0	9
	2732	P1458A Row GCD math number theory *1600	0 / 0	5
	2729	P1458C Latin Square math matrices *2700	0 / 0	10
	2725	P1459A Red-Blue Shuffle math probabilities *800	0 / 0	3
	2724	P1459B Move and Turn dp math *1300	0 / 0	4
	2719	P1461C Random Events dp math probabilities *1500	0 / 0	5
	2715	P1461E Water Level brute force graphs greedy implementation math *2200	0 / 0	8
	2708	P1462C Unique Number brute force greedy math *900	0 / 0	3
	2706	P1462D Add to Neighbour and Remove greedy math number theory *1400	0 / 0	4
	2705	P1462E1 Close Tuples (easy version) binary search combinatorics math sortings two pointers *1500	0 / 0	5
	2704	P1462E2 Close Tuples (hard version) binary search combinatorics implementation math sortings two pointers *1700	0 / 0	5
	2700	P1463A Dungeon binary search math *1100	0 / 0	3
	2690	P1463F Max Correct Set bitmasks dp math *3100	0 / 1	10
	2687	P1466A Bovine Dilemma brute force geometry math *800	0 / 0	3
	2681	P1466E Apollo versus Pan bitmasks brute force math *1800	0 / 0	6
	2680	P1466F Euclid's nightmare bitmasks dfs and similar dsu graphs greedy math sortings *2100	0 / 0	7
	2679	P1466G Song of the Sirens combinatorics divide and conquer hashing math string suffix structures strings *2600	0 / 0	10
	2676	P1466H Finding satisfactory solutions combinatorics dp graphs greedy math *3300	0 / 0	10
	2673	P1467A Wizard of Orz constructive algorithms greedy math *900	0 / 0	3
	2668	P1467D Sum of Paths combinatorics dp math *2200	0 / 0	8
	2652	P1468H K and Medians constructive algorithms greedy math *2200	0 / 0	8
	2650	P1468I Plane Tiling geometry implementation math *2500	0 / 0	9
	2644	P1468L Prime Divisors Selection binary search greedy math number theory *2700	0 / 0	10
	2633	P1469D Ceil Divisions brute force constructive algorithms math number theory *1700	0 / 0	5
	2624	P1470B Strange Definition bitmasks graphs hashing math number theory *1900	0 / 0	6
	2614	P1471A Strange Partition greedy math number theory *900	0 / 0	3
	2612	P1471B Strange List brute force greedy implementation math *1100	0 / 0	3
	2610	P1472A Cards for Friends greedy math *800	0 / 0	3
	2609	P1472B Fair Division dp greedy math *800	0 / 0	3
	2601	P1473A Replacing Elements greedy implementation math sortings *800	0 / 0	3
	2600	P1473B String LCM brute force math number theory strings *1000	0 / 0	3
	2599	P1473C No More Inversions constructive algorithms math *1500	0 / 0	5
	2596	P1473F Strange Set flows math *2700	0 / 0	10
	2595	P1473G Tiles combinatorics dp fft math *2800	0 / 0	10
	2592	P1474B Different Divisors binary search constructive algorithms greedy math number theory *1000	0 / 0	3
	2590	P1474D Cleaning data structures dp greedy math *2200	0 / 0	8
	2588	P1474F 1 2 3 4 ... dp math matrices *3000	0 / 0	10
	2587	P1475A Odd Divisor math number theory *900	0 / 0	3
	2584	P1475B New Year's Number brute force dp math *900	0 / 0	3
	2582	P1475C Ball in Berland combinatorics graphs math *1400	0 / 0	4
	2578	P1475E Advertising Agency combinatorics math sortings *1600	0 / 0	5
	2574	P1475G Strange Beauty dp math number theory sortings *1900	0 / 0	6
	2573	P1476A K-divisible Sum binary search constructive algorithms greedy math *1000	0 / 0	3
	2571	P1476B Inflation binary search brute force greedy math *1300	0 / 0	4
	2561	P1477A Nezzar and Board constructive algorithms math number theory *1800	0 / 0	6
	2557	P1477C Nezzar and Nice Beatmap constructive algorithms geometry greedy math sortings *2200	0 / 0	8
	2551	P1477F Nezzar and Chocolate Bars combinatorics fft math probabilities *3500	0 / 0	10
	2547	P1478B Nezzar and Lucky Number brute force dp greedy math *1100	0 / 0	3
	2546	P1478C Nezzar and Symmetric Array implementation math sortings *1700	0 / 0	5
	2533	P1479E School Clubs dp fft math number theory probabilities *3500	0 / 0	10
	2520	P1482A Prison Break math *800	0 / 0	3
	2519	P1482B Restore Modulo implementation math *1500	0 / 0	5
	2510	P1485A Add and Divide brute force greedy math number theory *1000	0 / 0	3
	2509	P1485B Replace and Keep Sorted dp implementation math *1200	0 / 0	4
	2508	P1485C Floor and Mod binary search brute force math number theory *1700	0 / 0	5
	2506	P1485D Multiples and Power Differences constructive algorithms graphs math number theory *2200	0 / 0	8
	2494	P1487B Cat Cycle math number theory *1200	0 / 0	4
	2493	P1487C Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math *1500	0 / 0	5
	2492	P1487D Pythagorean Triples binary search brute force math number theory *1500	0 / 0	5
	2489	P1487G String Counting combinatorics dp fft math *2700	0 / 0	10
	2488	P1488A From Zero To Y special problem math 900	0 / 0	3
	2486	P1488C Two Policemen special problem binary search brute force math 1900	0 / 0	6
	2474	P1488J Flower Shop special problem data structures fft math 3100	0 / 0	10
	2473	P1490A Dense Array greedy math *800	0 / 0	3
	2470	P1490B Balanced Remainders brute force constructive algorithms math *1000	0 / 0	3
	2468	P1490C Sum of Cubes binary search brute force brute force math *1100	0 / 0	3
	2463	P1490F Equalize the Array binary search data structures greedy math sortings *1500	0 / 0	5
	2460	P1490G Old Floppy Drive binary search data structures math *1900	0 / 0	6
	2457	P1491B Minimal Cost brute force math *1200	0 / 0	4
	2452	P1491D Zookeeper and The Infinite Zoo bitmasks constructive algorithms dp greedy math *1800	0 / 0	6
	2447	P1491G Switch and Flip constructive algorithms graphs math *2800	0 / 0	10
	2441	P1492A Three swimmers math *800	0 / 0	3
	2439	P1492B Card Deck data structures greedy math *1100	0 / 0	3
	2437	P1492D Genius's Gambit bitmasks constructive algorithms greedy math *1900	0 / 0	6
	2432	P1493D GCD of an Array brute force data structures hashing implementation math number theory sortings two pointers *2100	1 / 2	7
	2431	P1493E Enormous XOR bitmasks constructive algorithms greedy math strings two pointers *2600	0 / 0	10
	2416	P1495A Diamond Miner geometry greedy math sortings *1200	0 / 0	4

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