575 道题

ID 题目 显示标签 隐藏标签 AC / 尝试 难度
907 P1906   Three powers 1 / 3 1
924 P1923   Fourier's Lines 1 / 2 5
981 P1980   Unit Fraction Partition 1 / 2 10
996 P1995   Raising Modulo Numbers 1 / 1 10
1035 P2034   Anti-prime Sequences 2 / 2 10
1127 P2126   Factoring a Polynomial 1 / 1 10
1130 P2129   Invariant Polynomials 1 / 1 10
1152 P2151   Check the difficulty of problems 1 / 3 10
1193 P2191   Mersenne Composite Numbers 1 / 4 10
1211 P2211   Photograph 1 / 1 10
1250 P2249   Binomial Showdown 1 / 1 10
1263 P2262   Goldbach's Conjecture 1 / 2 10
1320 P2319   COMPRESS 1 / 2 10
1326 P2325   Persistent Numbers 1 / 1 10
1336 P2335   Temple of Dune 1 / 3 10
1337 P2336   Ferry Loading II 1 / 1 10
1348 P2347   Equations 1 / 16 10
1357 P2356   Find a multiple 1 / 4 10
1370 P2369   Permutations 1 / 12 10
1418 P2417   Discrete Logging 2 / 2 10
1428 P2427   Smith's Problem 0 / 0 (无)
1449 P2447   RSA 1 / 6 10
1454 P2453   An Easy Problem 0 / 0 (无)
1481 P2480   Longge's problem 1 / 4 10
1546 P2545   Hamming Problem 1 / 1 10
1552 P2551   Ones 1 / 1 10
1556 P2555   Drink, on Ice 1 / 3 10
1562 P2561   Language Cardinality 1 / 1 10
1604 P2603   Brave balloonists 1 / 2 10
1635 P2635   The Embarrassed Cryptographer 1 / 2 10
1649 P2649   Factovisors 1 / 1 10
1651 P2651   So you want to be a 2<sup>n</sup>-aire? 1 / 3 10
1668 P2668   Defending Castle 1 / 2 10
1689 P2689   Prime Distance 1 / 1 10
1700 P2700   Space Travel 1 / 3 10
1710 P2710   Consecutive Digits 1 / 3 10
1719 P2719   Faulty Odometer 1 / 1 10
1720 P2720   Last Digits 1 / 1 10
1721 P2721   Suit Distribution 1 / 1 10
1739 P2739   Sum of Consecutive Prime Numbers 1 / 3 10
1773 P2773   Happy 2006 1 / 1 10
1801 P2800   Joseph's Problem 1 / 2 10
1887 P2886   Who Gets the Most Candies? 1 / 1 10
1891 P2890   Matrix Multiplication 1 / 3 10
1892 P2891   Strange Way to Express Integers 1 / 3 10
1898 P2897   Dramatic Multiplications 1 / 1 10
1910 P2909   Goldbach's Conjecture 1 / 1 10
1946 P2945   Find the Clones 1 / 1 10
1993 P2992   Divisors 1 / 1 4
2003 P3002   Jackpot 1 / 1 10
2006 P3005   Exploding CPU 1 / 5 10
2007 P3006   Dirichlet's Theorem on Arithmetic Progressions 1 / 5 10
2013 P3012   A Number from Yanghui Triangle 1 / 1 10
2028 P3027   Base equality 1 / 2 10
2049 P3048   Max Factor 1 / 1 10
2067 P3066   Maximum 1 / 2 10
2071 P3070   Fibonacci 2 / 2 10
2072 P3071   Football 1 / 1 8
2085 P3084   Panic Room 1 / 2 8
2087 P3086   Triangular Sums 1 / 6 10
2091 P3090   Visible Lattice Points 1 / 4 10
2186 P3185   The Water Bowls 1 / 1 10
2276 P3275   Ranking the Cows 1 / 1 10
2325 P3324   Lucas-Lehmer Test 1 / 1 10
2362 P3361   Gaussian Prime Factors 1 / 1 10
2375 P3374   Cake Share 1 / 1 10
2472 P3471   Integral Roots 1 / 2 10
2493 P3492   Knapsack II 1 / 1 10
2496 P3495   Bitwise XOR of Arithmetic Progression 1 / 1 10
2512 P3511   Fermat's Christmas Theorem 1 / 5 10
2519 P3518   Prime Gap 1 / 10 10
2735 P3735   Training little cats 1 / 1 4
2789 P3789   Binary Clock 0 / 0 (无)
2793 P3793   Joe’s Triangular Gardens 1 / 1 10
2869 P3875   Lights 1 / 1 10

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