#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define REP(i,n) for(int (i)=0;(i)<(n);(i)++) #define FOR(i,a,b) for(int (i)=(a);(i)<(b);(i)++) #define RREP(i,a) for(int (i)=(a)-1;(i)>=0;(i)--) #define FORR(i,a,b) for(int (i)=(a)-1;(i)>=(b);(i)--) #define PI acos(-1.0) #define DEBUG(C) cout< #define VII vector #define VL vector #define VLL vector #define VD vector #define VDD vector #define PII pair #define PDD pair #define PLL pair #define VPII vector #define ALL(a) (a).begin(),(a).end() #define SORT(a) sort(ALL(a)) #define REVERSE(a) reverse(ALL(a)) #define MP make_pair #define FORE(a,b) for(auto &&a:b) #define FIND(s,n) s.find(n)!=s.end() using namespace std; typedef long long LL; typedef unsigned long long ULL; const int INF=1e9; const int MOD=INF+7; int N, K; random_device rnd; int t(void) { int res =0; REP (i, N) { res += (rnd()%6)+1; } return res; } int j(void) { int res = 0; REP(i, N) { if(i> N >> K; int tcnt = 0, jcnt = 0; REP(i,1e5){ int tt = t(); int jj = j(); if(tt>jj) tcnt ++; if(jj>tt) jcnt ++; } double ans = (double)((double)jcnt/(double)1e5); cout << fixed << setprecision(5) << ans << endl; }