list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
10232 Distinct Primes   84 5829 45.48
10
9
328 Bishops   82 8935 31.99
14
7
5971 LCM Sum   81 3655 25.88
20
29
154 Sweet and Sour Rock   80 3411 51.26
14
17
3405 Almost Shortest Path   80 1664 31.60
22
21
21357 Crucial Equation   80 6166 38.07
4
9
91 Two squares or not two squares   79 6032 24.60
11
14
3871 GCD Extreme   79 2677 29.47
19
26
21524 Pattern Find   79 4595 38.00
10
13
10509 Cards   78 13456 34.01
4
4
3381 Highways   77 4362 37.99
10
9
5117 Wine trading in Gergovia   76 5353 33.82
9
12
9494 Just Add It   76 6265 47.84
11
10
339 Recursive Sequence   75 3674 50.23
20
17
2939 Query on a tree V   75 1779 28.02
29
30
18167 SubXor   75 1730 30.42
25
29
247 Chocolate   74 5835 43.82
10
18
3749 Subset Sums   74 4057 26.36
17
20
6294 Yodaness Level   74 3534 49.23
15
16
12150 Just Next !!!   74 6567 23.06
12
11
288 Prime or Not   73 5058 18.94
21
22
10394 Buying Apples!   72 5490 34.86
12
14
379 Ambiguous Permutations   71 12328 59.57
4
5
8611 Non-Decreasing Digits   71 3719 54.80
7
11
22403 Divisors of factorial   71 1925 29.71
14
14
3978 Distance Query   70 1738 32.51
24
21
11404 Save Thy Toys   70 2812 30.19
12
15
1724 Counting Triangles   69 13084 34.04
7
21
6471 Printing some primes   69 7184 28.63
13
11
7588 Wise And Miser   69 5398 67.82
8
10
8238 N-Factorful   69 2590 26.46
17
16
10283 ALL IZZ WELL   69 3454 31.30
17
14
78 Marbles   68 7951 34.98
15
13
1108 Card Trick   68 2193 50.38
21
24
9788 Friends of Friends   67 7117 63.23
7
5
11772 Negative Score   67 3395 34.25
10
11
138 Election Posters   65 2276 25.64
20
21
503 Prime Intervals   65 1747 15.85
21
19
9032 Cube Free Numbers   65 4125 31.66
12
11
10707 Count on a tree II   65 3042 19.03
31
31
1296 4 values whose sum is 0   64 5067 24.87
18
14
11516 VALIDATE THE MAZE   64 3086 32.07
11
8
35674 COLORFUL ARRAY   64 1618 41.36
20
21
10628 Count on a tree   63 2408 17.06
32
31
21326 Akbar , The great   63 2476 15.82
21
18
7386 Activities   62 1423 25.48
16
19
8869 Roti Prata   62 7022 39.57
15
17
11372 Blueberries   62 2223 33.56
12
13
27307 Alternating Sequences   62 2095 32.45
8
9
1028 Hubulullu   61 8216 58.76
2
15

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