random ssn generator

PHP random color generator Function randomColor (){ $ Str = '#'; For ($ I = 0; $ I $ RandNum = rand (0, 15 ); Switch ($ randNum ){ Case 10: $ randNum = 'a'; break; Case 11: $ randNum = 'B'; break; Case 12: $ randNum = 'C'; break; Case 13: $ randNum = 'd'; break; Case 14: $ randNum = 'e'; break; Case 15: $ randNum = 'F'; break; }

Occupy the pit first. Revise laterI met a question yesterday, Given int Rand (1) = 0 or 1-uniformly distributed, write a function to implement Rand-uniformly distribut EdBecause the undergraduate time probability did not learn, hung. Come back online A look at the information found there are similar topics-Given rand (5) = {1, 2, 3, 4, 5}, for Rand (7).The code to ask for Rand7 is Public Static int random7 () { int val = (RANDOM5 ()-1) * 5 + (RANDOM5 ()-1); return Val : Random7 (

Prioritize the processing of arrays in the way it describesAnd then, in order to get as many small numbers as possible in the sequence,So 1 is a must to appear, in order to make the whole sequence of the order of the dictionary after the smallest.We thought, if 2 could be in this series, it'd be better.But 2 may not be in this series, that is, 2 walk 1 is impossible to go to the place, you can not walk 2.So from small to large enumeration numbers, if the current number can go, the output, and th

; - } -T/=D; the ll x, y; the EXGCD (a,b,x,y); thex= (x*t)%p; the while(x0) x+=p; - returnx+1; the } thell C=pow (A-1, P-2); thell a= (b*c+x1)%p,b=p,t= (b*c+t)%p;94 if(a0) a= (a+p)%p; the if(b0) b= (b+p)%p; thell d=gcd (A, b); the if(t%D) {98 return-1; About } -T/=D;101 ll x, y;102 EXGCD (a,b,x,y);103 while(x0) x= (x+p)%p;104x= (x*t)%p; thell ans=Work (a,x);106 if(ans!=-1)returnans+1;107 Else returnans;108 }109 intMain