constructive algorithms - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	2780	P1446E Long Recovery constructive algorithms dfs and similar *3500	0 / 0	10
	2778	P1447A Add Candies constructive algorithms math *800	0 / 0	3
	2776	P1450A Avoid Trygub constructive algorithms sortings *800	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
	2771	P1450E Capitalism constructive algorithms dfs and similar graphs shortest paths *2700	0 / 0	10
	2770	P1450F The Struggling Contestant constructive algorithms greedy *2400	0 / 0	9
	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
	2760	P1451F Nullify The Matrix constructive algorithms games *2700	0 / 0	10
	2754	P1452F Divide Powers constructive algorithms greedy *2900	0 / 0	10
	2751	P1453B Suffix Operations constructive algorithms implementation *1400	0 / 0	4
	2749	P1453D Checkpoints brute force constructive algorithms greedy math probabilities *1900	0 / 0	6
	2746	P1454A Special Permutation constructive algorithms probabilities *800	0 / 0	3
	2743	P1454D Number into Sequence constructive algorithms math number theory *1300	0 / 0	4
	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
	2723	P1461A String Generation constructive algorithms greedy *800	0 / 0	3
	2713	P1461F Mathematical Expression constructive algorithms dp greedy *2700	0 / 0	10
	2698	P1463B Find The Array bitmasks constructive algorithms greedy *1400	0 / 0	4
	2695	P1463D Pairs binary search constructive algorithms greedy two pointers *1900	0 / 0	6
	2692	P1463E Plan of Lectures constructive algorithms dfs and similar dsu graphs implementation sortings trees *2400	0 / 0	9
	2673	P1467A Wizard of Orz constructive algorithms greedy math *900	0 / 0	3
	2669	P1467C Three Bags constructive algorithms greedy *1900	0 / 0	6
	2652	P1468H K and Medians constructive algorithms greedy math *2200	0 / 0	8
	2638	P1469A Regular Bracket Sequence constructive algorithms greedy *1000	0 / 0	3
	2633	P1469D Ceil Divisions brute force constructive algorithms math number theory *1700	0 / 0	5
	2622	P1470C Strange Shuffle binary search brute force constructive algorithms interactive *2500	0 / 0	9
	2620	P1470D Strange Housing constructive algorithms dfs and similar graph matchings graphs greedy *2200	0 / 0	8
	2599	P1473C No More Inversions constructive algorithms math *1500	0 / 0	5
	2592	P1474B Different Divisors binary search constructive algorithms greedy math number theory *1000	0 / 0	3
	2591	P1474C Array Destruction brute force constructive algorithms data structures greedy implementation sortings *1700	0 / 0	5
	2589	P1474E What Is It? constructive algorithms greedy *2500	0 / 0	9
	2577	P1475F Unusual Matrix 2-sat brute force constructive algorithms *1900	0 / 0	6
	2573	P1476A K-divisible Sum binary search constructive algorithms greedy math *1000	0 / 0	3
	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
	2555	P1477D Nezzar and Hidden Permutations constructive algorithms dfs and similar graphs *2800	0 / 0	10
	2541	P1479B1 Painting the Array I constructive algorithms data structures dp greedy implementation *1900	0 / 0	6
	2539	P1479B2 Painting the Array II constructive algorithms data structures dp greedy implementation *2100	0 / 0	7
	2537	P1479C Continuous City bitmasks constructive algorithms *2500	0 / 0	9
	2524	P1481C Fence Painting brute force constructive algorithms greedy *1600	0 / 0	5
	2523	P1481D AB Graph brute force constructive algorithms graphs greedy implementation *2000	0 / 0	7
	2518	P1482C Basic Diplomacy brute force constructive algorithms greedy implementation *1600	0 / 0	5
	2506	P1485D Multiples and Power Differences constructive algorithms graphs math number theory *2200	0 / 0	8
	2497	P1486E Paired Payment binary search brute force constructive algorithms dp flows graphs shortest paths *2200	0 / 0	8
	2493	P1487C Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math *1500	0 / 0	5
	2470	P1490B Balanced Remainders brute force constructive algorithms math *1000	0 / 0	3
	2452	P1491D Zookeeper and The Infinite Zoo bitmasks constructive algorithms dp greedy math *1800	0 / 0	6
	2449	P1491F Magnets binary search constructive algorithms interactive *2700	0 / 0	10
	2447	P1491G Switch and Flip constructive algorithms graphs math *2800	0 / 0	10
	2437	P1492D Genius's Gambit bitmasks constructive algorithms greedy math *1900	0 / 0	6
	2436	P1492E Almost Fault-Tolerant Database brute force constructive algorithms dfs and similar greedy implementation *2500	0 / 0	9
	2435	P1493A Anti-knapsack constructive algorithms greedy *800	0 / 0	3
	2433	P1493C K-beautiful Strings binary search brute force constructive algorithms greedy strings *2000	0 / 0	7
	2431	P1493E Enormous XOR bitmasks constructive algorithms greedy math strings two pointers *2600	0 / 0	10
	2422	P1494D Dogeforces constructive algorithms data structures dfs and similar divide and conquer dsu greedy sortings trees *2300	0 / 0	8
	2421	P1494E A-Z Graph constructive algorithms data structures graphs hashing *2400	0 / 0	9
	2418	P1494F Delete The Edges brute force constructive algorithms dfs and similar graphs implementation *2900	0 / 0	10
	2414	P1495C Garden of the Sun constructive algorithms graphs *2300	0 / 0	8
	2410	P1495F Squares constructive algorithms data structures dp graphs trees *3300	0 / 0	10
	2409	P1496A Split it! brute force constructive algorithms greedy strings *900	0 / 0	3
	2404	P1497B M-arrays constructive algorithms greedy math *1200	0 / 0	4
	2402	P1497C1 k-LCM (easy version) constructive algorithms math *1200	0 / 0	4
	2400	P1497C2 k-LCM (hard version) constructive algorithms math *1600	0 / 0	5
	2383	P1499A Domino on Windowsill combinatorics constructive algorithms math *800	0 / 0	3
	2368	P1500C Matrix Sorting bitmasks brute force constructive algorithms greedy two pointers *2600	0 / 0	10
	2359	P1503A Balance the Bits constructive algorithms greedy *1600	0 / 0	5
	2356	P1503B 3-Coloring constructive algorithms games interactive *1700	0 / 0	5
	2353	P1503D Flip the Cards 2-sat constructive algorithms data structures greedy sortings two pointers *2600	0 / 0	10
	2351	P1503F Balance the Cards constructive algorithms data structures divide and conquer geometry graphs implementation *3500	0 / 0	10
	2350	P1504A Déjà Vu constructive algorithms strings *800	0 / 0	3
	2349	P1504B Flip the Bits constructive algorithms greedy implementation math *1200	0 / 0	4
	2334	P1506D Epic Transformation constructive algorithms data structures greedy *1400	0 / 0	4
	2332	P1506E Restoring the Permutation constructive algorithms implementation *1500	0 / 0	5
	2330	P1506F Triangular Paths constructive algorithms graphs math shortest paths sortings *2000	0 / 0	7
	2327	P1508A Binary Literature constructive algorithms greedy implementation strings two pointers *1900	0 / 0	6
	2325	P1508B Almost Sorted binary search combinatorics constructive algorithms implementation *1800	0 / 0	6
	2323	P1508D Swap Pass constructive algorithms geometry sortings *3000	0 / 0	10
	2321	P1508E Tree Calendar brute force constructive algorithms data structures dfs and similar sortings trees *3100	0 / 0	10
	2317	P1509A Average Height constructive algorithms *800	0 / 0	3
	2298	P1510J Japanese Game constructive algorithms math *2700	0 / 0	10
	2295	P1511B GCD Length constructive algorithms math number theory *1100	0 / 0	3
	2293	P1511D Min Cost String brute force constructive algorithms graphs greedy strings *1600	0 / 0	5
	2285	P1512C A-B Palindrome constructive algorithms implementation strings *1200	0 / 0	4
	2283	P1512D Corrupted Array constructive algorithms data structures greedy *1200	0 / 0	4
	2275	P1513A Array and Peaks constructive algorithms implementation *800	0 / 0	3
	2273	P1513B AND Sequences bitmasks combinatorics constructive algorithms math *1400	0 / 0	4
	2271	P1513D GCD and MST constructive algorithms dsu graphs greedy number theory sortings *2000	1 / 1	7
	2270	P1513E Cost Equilibrium combinatorics constructive algorithms math sortings *2300	0 / 0	8
	2269	P1513F Swapping Problem brute force constructive algorithms data structures sortings *2500	0 / 0	9
	2263	P1515A Phoenix and Gold constructive algorithms greedy math *800	0 / 0	3
	2261	P1515C Phoenix and Towers constructive algorithms data structures greedy *1400	0 / 0	4
	2258	P1515F Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees *2600	0 / 0	10
	2246	P1516C Baby Ehab Partitions Again bitmasks constructive algorithms dp math *1700	0 / 0	5
	2238	P1517B Morning Jogging constructive algorithms greedy sortings *1200	0 / 0	4
	2236	P1517C Fillomino 2 constructive algorithms dfs and similar greedy implementation *1400	0 / 0	4
	2230	P1517G Starry Night Camping constructive algorithms flows graphs *3300	0 / 0	10
	2224	P1519E Off by One constructive algorithms dfs and similar geometry graphs sortings trees *2700	0 / 0	10

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