math - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	3876	P1268B Domino for Young dp greedy math *2000	0 / 0	7
	3871	P1268D Invertation in Tournament brute force divide and conquer graphs math *3200	0 / 0	10
	3867	P1269A Equation brute force math *800	0 / 0	3
	3863	P1270A Card Game games greedy math *800	0 / 0	3
	3861	P1270B Interesting Subarray constructive algorithms greedy math *1200	0 / 0	4
	3859	P1270C Make Good bitmasks constructive algorithms math *1400	0 / 0	4
	3857	P1270D Strange Device constructive algorithms interactive math sortings *1900	0 / 0	6
	3856	P1270E Divide Points constructive algorithms geometry math *2300	0 / 0	8
	3855	P1270F Awesome Substrings math strings *2600	0 / 0	10
	3854	P1270G Subset with Zero Sum constructive algorithms dfs and similar graphs math *2700	0 / 0	10
	3850	P1270I Xor on Figures constructive algorithms fft math *3500	0 / 0	10
	3848	P1271A Suits brute force greedy math *800	0 / 0	3
	3846	P1271B Blocks greedy math *1300	1 / 1	4
	3839	P1271E Common Number binary search combinatorics dp math *2100	0 / 0	7
	3836	P1272A Three Friends brute force greedy math sortings *900	0 / 0	3
	3819	P1276C Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math *2300	0 / 0	8
	3808	P1277D Let's Play the Words? data structures hashing implementation math *1900	0 / 0	6
	3804	P1278B A and B greedy math *1500	0 / 3	5
	3795	P1278F Cards combinatorics dp math number theory probabilities *2600	0 / 0	10
	3794	P1279A New Year Garland math *900	0 / 0	3
	3788	P1279D Santa's Bot combinatorics math probabilities *1700	0 / 0	5
	3781	P1280A Cut and Paste implementation math *1700	0 / 0	5
	3779	P1280B Beingawesomeism implementation math *1800	0 / 0	6
	3773	P1280E Kirchhoff's Current Loss math *2900	0 / 0	10
	3771	P1280F Intergalactic Sliding Puzzle combinatorics constructive algorithms math *3400	0 / 0	10
	3765	P1282A Temporarily unavailable implementation math *900	0 / 0	3
	3755	P1283A Minutes Before the New Year math *800	0 / 0	3
	3753	P1283B Candies Division math *900	0 / 0	3
	3752	P1283C Friends and Gifts constructive algorithms data structures math *1500	0 / 0	5
	3744	P1284C New Year and Permutation combinatorics math *1600	0 / 0	5
	3741	P1284E New Year and Castle Construction combinatorics geometry math sortings *2500	0 / 0	9
	3740	P1284F New Year and Social Network data structures graph matchings graphs math trees *3200	0 / 0	10
	3737	P1285A Mezo Playing Zoma math *800	0 / 0	3
	3733	P1285C Fadi and LCM brute force math number theory *1400	0 / 0	4
	3722	P1286C1 Madhouse (Easy version) brute force constructive algorithms interactive math *2400	0 / 0	9
	3719	P1286C2 Madhouse (Hard version) brute force constructive algorithms hashing interactive math *2800	0 / 0	10
	3717	P1286D LCC data structures math matrices probabilities *3100	0 / 0	10
	3714	P1286F Harry The Potter brute force constructive algorithms dp fft implementation math *3100	0 / 0	10
	3710	P1288A Deadline binary search brute force math ternary search *1100	0 / 0	3
	3709	P1288B Yet Another Meme Problem math *1100	0 / 0	3
	3687	P1291A Even But Not Even greedy math strings *900	0 / 0	3
	3679	P1292D Chaotic V. dp graphs greedy math number theory trees *2700	0 / 0	10
	3678	P1292E Rin and The Unknown Flower constructive algorithms greedy interactive math *3500	0 / 0	10
	3675	P1293B JOE is on TV! combinatorics greedy math *1000	0 / 0	3
	3674	P1294A Collecting Coins math *800	0 / 0	3
	3670	P1294C Product of Three Numbers greedy math number theory *1300	0 / 0	4
	3669	P1294D MEX maximizing data structures greedy implementation math *1600	0 / 0	5
	3667	P1294E Obtain a Permutation greedy implementation math *1900	0 / 0	6
	3664	P1295B Infinite Prefixes math strings *1700	0 / 0	5
	3660	P1295D Same GCDs math number theory *1800	0 / 0	6
	3655	P1296A Array with Odd Sum math *800	0 / 0	3
	3652	P1296B Food Buying math *900	0 / 0	3
	3623	P1297G M-numbers *special problem dp math	0 / 0	(None)
	3620	P1299A Anu Has a Function brute force greedy math *1500	0 / 0	5
	3617	P1299D Around the World bitmasks combinatorics dfs and similar dp graphs graphs math trees *3000	0 / 0	10
	3616	P1299E So Mean interactive math *3400	0 / 0	10
	3615	P1300A Non-zero implementation math *800	0 / 0	3
	3611	P1301C Ayoub's function binary search combinatorics greedy math strings *1700	0 / 0	5
	3596	P1303B National Project math *1400	0 / 0	4
	3590	P1304A Two Rabbits math *800	0 / 0	3
	3581	P1305C Kuroni and Impossible Calculation brute force combinatorics math number theory *1600	0 / 0	5
	3579	P1305E Kuroni and the Score Distribution constructive algorithms greedy implementation math *2200	0 / 0	8
	3578	P1305F Kuroni and the Punishment math number theory probabilities *2500	0 / 0	9
	3574	P1307B Cow and Friend geometry greedy math *1300	0 / 0	4
	3573	P1307C Cow and Message brute force dp math strings *1500	0 / 0	5
	3571	P1307E Cow and Treats binary search combinatorics dp greedy implementation math *2500	0 / 0	9
	3557	P1310F Bad Cryptography math number theory *3400	0 / 0	10
	3556	P1311A Add Odd or Subtract Even greedy implementation math *800	0 / 0	3
	3550	P1311D Three Integers brute force math *2000	0 / 0	7
	3544	P1312A Two Regular Polygons geometry greedy math number theory *800	0 / 0	3
	3540	P1312C Adding Powers bitmasks greedy implementation math number theory ternary search *1400	0 / 0	4
	3539	P1312D Count the Arrays combinatorics math *1700	0 / 0	5
	3534	P1313B Different Rules constructive algorithms greedy implementation math *1700	0 / 0	5
	3519	P1316C Primitive Primes constructive algorithms math ternary search *1800	0 / 0	6
	3512	P1320A Journey Planning data structures dp greedy math sortings *1400	0 / 0	4
	3496	P1322B Present binary search bitmasks constructive algorithms data structures math sortings *2100	0 / 0	7
	3493	P1322C Instant Noodles graphs hashing math number theory *2300	0 / 0	8
	3465	P1326B Maximums implementation math *900	0 / 0	3
	3463	P1326C Permutation Partitions combinatorics greedy math *1300	0 / 0	4
	3453	P1326F2 Wise Men (Hard Version) bitmasks dp math *3200	0 / 0	10
	3450	P1327A Sum of Odd Integers math *1100	0 / 0	3
	3447	P1327D Infinite Path brute force dfs and similar graphs math number theory *2200	0 / 0	8
	3446	P1327E Count The Blocks combinatorics dp math *1800	1 / 3	6
	3442	P1328A Divisibility Problem math *800	0 / 0	3
	3439	P1328B K-th Beautiful String binary search brute force combinatorics implementation math *1300	0 / 0	4
	3436	P1328D Carousel constructive algorithms dp graphs greedy math *1800	0 / 0	6
	3429	P1329A Dreamoon Likes Coloring constructive algorithms greedy implementation math *1800	0 / 0	6
	3427	P1329B Dreamoon Likes Sequences bitmasks combinatorics math *1700	0 / 0	5
	3417	P1330B Dreamoon Likes Permutations implementation math *1400	0 / 0	4
	3414	P1331B Limericks *special problem math number theory	0 / 0	(None)
	3400	P1332A Exercising Walk greedy implementation math *1100	0 / 0	3
	3398	P1332B Composite Coloring brute force constructive algorithms greedy math number theory *1400	0 / 0	4
	3395	P1332D Walk on Matrix bitmasks constructive algorithms math *1700	0 / 0	5
	3394	P1332E Height All the Same combinatorics constructive algorithms math matrices *2100	0 / 0	7
	3382	P1333F Kate and imperfection greedy implementation math number theory sortings two pointers *2200	0 / 0	8
	3381	P1334A Level Statistics implementation math *1200	0 / 0	4
	3379	P1334C Circle of Monsters brute force constructive algorithms greedy math *1600	0 / 0	5
	3376	P1334E Divisor Paths combinatorics graphs greedy math number theory *2200	0 / 0	8
	3373	P1335A Candies and Two Sisters math *800	0 / 0	3
	3360	P1336B Xenia and Colorful Gems binary search greedy math sortings two pointers *1700	0 / 0	5

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