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Given A,B,C, You should quickly calculate the result of A^B mod C. (1 include include include include include define sf scanf define pf printf define 阅读全文
posted @ 2018-07-24 21:27
一无所知小白龙
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求a^b(%mod) 如果是接近1e18的数字的快速幂，则会爆long long，这就要用快速乘; 阅读全文
posted @ 2018-07-24 20:48
一无所知小白龙
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The Sky is Sprite. The Birds is Fly in the Sky. The Wind is Wonderful. Blew Throw the Trees Trees are Shaking, Leaves are Falling. Lovers Walk passing 阅读全文
posted @ 2018-07-24 18:15
一无所知小白龙
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The Farey Sequence Fn for any integer n with n = 2 is the set of irreducible rational numbers a/b with 0 include include include include include defin 阅读全文
posted @ 2018-07-24 17:42
一无所知小白龙
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1.欧几里得原理是辗转相除法，用来求最大公约数的； 2.拓展欧几里得原理，可以用来解二元一次方程：A X+B Y=C; 模板 (返回值是gcd(a,b)) 因为用的是A X+B Y=gcd(A,B)，所以结果x，y要乘上 c/gcd(a,b)!!!!! int ans=exgcd(int a,int 阅读全文
posted @ 2018-07-24 11:05
一无所知小白龙
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