Problem Set - SAST OJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	2556	codeforces#P1428H Rotary Laser Lock binary search interactive *3500	0 / 0	10
	2555	codeforces#P1430A Number of Apartments brute force constructive algorithms math *900	0 / 0	3
	2554	codeforces#P1430B Barrels greedy implementation sortings *800	0 / 0	3
	2553	codeforces#P1430C Numbers on Whiteboard constructive algorithms data structures greedy implementation math *1000	0 / 0	3
	2552	codeforces#P1430D String Deletion binary search data structures greedy two pointers *1700	0 / 0	5
	2551	codeforces#P1430E String Reversal data structures greedy strings *1900	0 / 0	6
	2550	codeforces#P1430F Realistic Gameplay dp greedy *2600	0 / 0	10
	2549	codeforces#P1430G Yet Another DAG Problem bitmasks dfs and similar dp flows graphs math *2600	0 / 0	10
	2548	codeforces#P1431A Selling Hamburgers special problem 800	0 / 0	3
	2547	codeforces#P1431B Polycarp and the Language of Gods special problem implementation two pointers 1400	0 / 0	4
	2546	codeforces#P1431C Black Friday special problem implementation 1600	0 / 0	5
	2545	codeforces#P1431D Used Markers special problem greedy 1500	0 / 0	5
	2544	codeforces#P1431E Chess Match special problem 2000	0 / 0	7
	2543	codeforces#P1431F Neural Network Problem special problem binary search greedy 2100	0 / 0	7
	2542	codeforces#P1431G Number Deletion Game special problem dp games greedy 2100	0 / 0	7
	2541	codeforces#P1431H Rogue-like Game special problem brute force greedy two pointers 2600	0 / 0	10
	2540	codeforces#P1431I Cyclic Shifts special problem strings 2900	0 / 0	10
	2539	codeforces#P1431J Zero-XOR Array special problem dp 3400	0 / 0	10
	2538	codeforces#P1433A Boring Apartments implementation math *800	0 / 0	3
	2537	codeforces#P1433B Yet Another Bookshelf greedy implementation *800	0 / 0	3
	2536	codeforces#P1433C Dominant Piranha constructive algorithms greedy *900	0 / 0	3
	2535	codeforces#P1433D Districts Connection constructive algorithms dfs and similar *1200	0 / 0	4
	2534	codeforces#P1433E Two Round Dances combinatorics math *1300	0 / 0	4
	2533	codeforces#P1433F Zero Remainder Sum dp *2100	0 / 0	7
	2532	codeforces#P1433G Reducing Delivery Cost brute force graphs shortest paths *2100	0 / 0	7
	2531	codeforces#P1434E A Convex Game dsu games *3500	0 / 0	10
	2530	codeforces#P1436A Reorder math *800	0 / 0	3
	2529	codeforces#P1436B Prime Square constructive algorithms math *900	0 / 0	3
	2528	codeforces#P1436C Binary Search binary search combinatorics *1500	0 / 0	5
	2527	codeforces#P1436D Bandit in a City binary search dfs and similar graphs greedy trees *1900	0 / 0	6
	2526	codeforces#P1436E Complicated Computations binary search data structures two pointers *2400	0 / 0	9
	2525	codeforces#P1436F Sum Over Subsets combinatorics math number theory *2800	0 / 0	10
	2524	codeforces#P1437A Marketing Scheme brute force constructive algorithms greedy math *800	0 / 0	3
	2523	codeforces#P1437B Reverse Binary Strings constructive algorithms greedy *1200	0 / 0	4
	2522	codeforces#P1437C Chef Monocarp dp flows graph matchings greedy math sortings *1800	0 / 0	6
	2521	codeforces#P1437D Minimal Height Tree graphs greedy shortest paths trees *1600	0 / 0	5
	2520	codeforces#P1437E Make It Increasing binary search constructive algorithms data structures dp implementation *2200	0 / 0	8
	2519	codeforces#P1437F Emotional Fishermen combinatorics dp math two pointers *2600	0 / 0	10
	2518	codeforces#P1437G Death DBMS data structures string suffix structures strings trees *2600	0 / 0	10
	2517	codeforces#P1438A Specific Tastes of Andre constructive algorithms implementation *800	0 / 0	3
	2516	codeforces#P1438B Valerii Against Everyone constructive algorithms data structures greedy sortings *1000	0 / 0	3
	2515	codeforces#P1438C Engineer Artem 2-sat chinese remainder theorem constructive algorithms fft flows *2000	0 / 0	7
	2514	codeforces#P1438D Powerful Ksenia bitmasks constructive algorithms math *2200	0 / 0	8
	2513	codeforces#P1438E Yurii Can Do Everything binary search bitmasks brute force constructive algorithms divide and conquer two pointers *2500	0 / 0	9
	2512	codeforces#P1438F Olha and Igor interactive probabilities trees *3000	0 / 0	10
	2511	codeforces#P1439A1 Binary Table (Easy Version) constructive algorithms implementation *1500	0 / 0	5
	2510	codeforces#P1439A2 Binary Table (Hard Version) constructive algorithms graphs greedy implementation *1900	0 / 0	6
	2509	codeforces#P1439B Graph Subset Problem constructive algorithms data structures graphs *2600	0 / 0	10
	2508	codeforces#P1439C Greedy Shopping binary search data structures divide and conquer greedy implementation *2600	0 / 0	10
	2507	codeforces#P1439D INOI Final Contests combinatorics dp fft *3100	0 / 0	10
	2506	codeforces#P1439E Cheat and Win bitmasks data structures games trees *3500	0 / 0	10
	2505	codeforces#P1440A Buy the String implementation math *800	0 / 0	3
	2504	codeforces#P1440B Sum of Medians greedy math *900	0 / 0	3
	2503	codeforces#P1442A Extreme Subtraction constructive algorithms dp greedy *1800	0 / 0	6
	2502	codeforces#P1442B Identify the Operations combinatorics data structures dsu greedy implementation *1800	0 / 0	6
	2501	codeforces#P1442C Graph Transpositions dfs and similar graphs greedy shortest paths *2400	0 / 0	9
	2500	codeforces#P1442D Sum data structures divide and conquer dp greedy *2800	0 / 0	10
	2499	codeforces#P1442E Black, White and Grey Tree binary search constructive algorithms dfs and similar dp greedy trees *3000	0 / 0	10
	2498	codeforces#P1442F Differentiating Games games interactive *3400	0 / 0	10
	2497	codeforces#P1443A Kids Seating constructive algorithms math *800	0 / 0	3
	2496	codeforces#P1443B Saving the City dp greedy math sortings *1300	0 / 0	4
	2495	codeforces#P1443C The Delivery Dilemma binary search greedy sortings *1400	0 / 0	4
	2494	codeforces#P1443E Long Permutation brute force math two pointers *2400	0 / 0	9
	2493	codeforces#P1444A Division brute force math number theory *1500	0 / 0	5
	2492	codeforces#P1444B Divide and Sum combinatorics math sortings *1900	0 / 0	6
	2491	codeforces#P1444C Team-Building data structures dfs and similar dsu graphs *2500	0 / 0	9
	2490	codeforces#P1444D Rectangular Polyline constructive algorithms dp geometry *2900	0 / 0	10
	2489	codeforces#P1444E Finding the Vertex brute force dfs and similar dp interactive trees *3500	0 / 0	10
	2488	codeforces#P1445A Array Rearrangment greedy sortings *800	0 / 0	3
	2487	codeforces#P1445B Elimination greedy math *900	0 / 0	3
	2486	codeforces#P1446A Knapsack constructive algorithms greedy sortings *1300	0 / 0	4
	2485	codeforces#P1446B Catching Cheaters dp strings *1800	0 / 0	6
	2484	codeforces#P1446C Xor Tree binary search bitmasks data structures divide and conquer dp trees *2100	0 / 0	7
	2483	codeforces#P1446D1 Frequency Problem (Easy Version) data structures greedy *2600	0 / 0	10
	2482	codeforces#P1446D2 Frequency Problem (Hard Version) data structures greedy two pointers *3000	0 / 0	10
	2481	codeforces#P1446E Long Recovery constructive algorithms dfs and similar *3500	0 / 0	10
	2480	codeforces#P1446F Line Distance binary search data structures geometry *3200	0 / 0	10
	2479	codeforces#P1447A Add Candies constructive algorithms math *800	0 / 0	3
	2478	codeforces#P1447B Numbers Box greedy math *1000	0 / 0	3
	2477	codeforces#P1450A Avoid Trygub constructive algorithms sortings *800	0 / 0	3
	2476	codeforces#P1450B Balls of Steel brute force geometry greedy *1000	0 / 0	3
	2475	codeforces#P1450C1 Errich-Tac-Toe (Easy Version) constructive algorithms math *2100	0 / 0	7
	2474	codeforces#P1450C2 Errich-Tac-Toe (Hard Version) constructive algorithms math *2300	0 / 0	8
	2473	codeforces#P1450D Rating Compression binary search data structures greedy implementation two pointers *1800	0 / 0	6
	2472	codeforces#P1450E Capitalism constructive algorithms dfs and similar graphs shortest paths *2700	0 / 0	10
	2471	codeforces#P1450F The Struggling Contestant constructive algorithms greedy *2400	0 / 0	9
	2470	codeforces#P1450G Communism bitmasks dp trees *3500	0 / 0	10
	2469	codeforces#P1450H1 Multithreading (Easy Version) combinatorics fft math *2900	0 / 0	10
	2468	codeforces#P1450H2 Multithreading (Hard Version) combinatorics implementation math *3300	0 / 0	10
	2467	codeforces#P1451A Subtract or Divide greedy math *800	0 / 0	3
	2466	codeforces#P1451B Non-Substring Subsequence dp greedy implementation strings *900	0 / 0	3
	2465	codeforces#P1451C String Equality dp greedy hashing implementation strings *1400	0 / 0	4
	2464	codeforces#P1451D Circle Game games geometry math *1700	0 / 0	5
	2463	codeforces#P1451E1 Bitwise Queries (Easy Version) bitmasks constructive algorithms interactive math *2000	0 / 0	7
	2462	codeforces#P1451E2 Bitwise Queries (Hard Version) bitmasks constructive algorithms interactive math *2300	0 / 0	8
	2461	codeforces#P1451F Nullify The Matrix constructive algorithms games *2700	0 / 0	10
	2460	codeforces#P1452A Robot Program math *800	0 / 0	3
	2459	codeforces#P1452B Toy Blocks binary search greedy math sortings *1400	0 / 0	4
	2458	codeforces#P1452C Two Brackets greedy *800	0 / 0	3
	2457	codeforces#P1452D Radio Towers combinatorics dp math *1600	0 / 0	5

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