数论 (共39题)
ID Problem Title Source AC Ratio Solved Tries
1104 Sum of Consecutive Prime Numbers Japan 2005, POJ 2739, UVA 3399 58% 7 12
2827 青蛙的约会 POJ 1061 22% 11 73
2894 Qualified Primes USACO 2007 Jan Bronze 25% 5 20
2915 Prime Factors USACO 2007 Mar Level1 21% 4 19
2989 Cow Gymnasts USACO 2018 February Platinum 100% 1 1
3205 Driving Out the Piggies 驱逐猪猡 USACO 2010 Hol 0% 0 0
3208 Hexadecimal Conversion USACO 2010 Mar Bronze 0% 0 0
3308 小凯的疑惑(math) NOIP2017提高组Day1 88% 6 8
3326 斐波那契的整除 XOJ 56% 10 18
3327 五指山 XOJ 52% 6 21
3328 Prime Distance 素数距离 Waterloo local 1998, POJ 2689 9% 6 79
3329 Relatives 互质 Waterloo local, POJ 2407 63% 14 32
3330 Farey Sequence POJ 2478 0% 0 1
3331 Visible Lattice Points Greater New York 2006, POJ 3090 71% 9 17
3332 Fibonacci 超级斐波那契 Stanford Local 2006 67% 13 24
3333 Tr A 矩阵的迹 HDU 1575 0% 0 5
3334 C Looooops CTU Open 2004, POJ 2115 0% 0 4
3335 Biorhythms 生理周期 East Central North America 1999, POJ 1006 42% 6 24
3336 Strange Way to Express Integers 表示整数的奇怪方法 POJ 2891 76% 10 17
3337 YAPTCHA 超级验证码 CEPC 2008 0% 0 0
3338 小猪佩奇 XOJ 22% 1 9
3339 Primitive Roots HDU 4992 100% 1 1
3340 Primitive Roots POJ 1284 100% 1 1
3356 video HE 71% 15 28
3705 Bedtime Reading USACO 2006 Open Level1 0% 0 0
3746 大水题2(dst) genies 25% 1 4
3983 3101 阶乘分解 李煜东, XOJ 60% 6 10
3984 反素数ant HAOI2007 80% 7 10
3985 余数之和 CQOI2007 58% 7 12
3987 Power Modulo Inverted SPOJ 3105 20% 4 20
3995 Devu and Flowers Codeforces 451E 33% 6 18
4001 Longge's problem POJ 2480 55% 6 11
4019 教堂(church) XOJ 0% 0 0
4020 密码箱(strongbox) POI 2011 0% 0 0
4022 欧几里得的游戏 XOJ 100% 1 1
4023 普通递归关系(recur) XOJ 0% 0 0
4266 亲和数 XOJ 32% 7 22