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uva 10417

機率問題

排出一個字串像是測資第一筆03

並且做permutation,然後從0~4選出一個最好的答案

記得要除BOX的NUMBER,因為有可能會拿到別人提供的BOX

//====================================================================||
// ||
// ||
// Author : GCA ||
// 6AE7EE02212D47DAD26C32C0FE829006 ||
//====================================================================||
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <climits>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cctype>
#include <utility>
using namespace std;
#ifdef ONLINE_JUDGE
#define ll "%lld"
#else
#define ll "%I64d"
#endif
typedef unsigned int uint;
typedef long long int Int;
#define Set(a,s) memset(a,s,sizeof(a))
#define Write(w) freopen(w,"w",stdout)
#define Read(r) freopen(r,"r",stdin)
#define Pln() printf("\n")
#define I_de(x,n)for(int i=0;i<n;i++)printf("%d ",x[i]);Pln()
#define De(x)printf(#x"%d\n",x)
#define For(i,x)for(int i=0;i<x;i++)
#define CON(x,y) x##y
#define Pmz(dp,nx,ny)for(int hty=0;hty<ny;hty++){for(int htx=0;htx<nx;htx++){\
printf("%d ",dp[htx][hty]);}Pln();}
#define M 55
#define PII pair<int,int>
#define PB push_back
#define oo INT_MAX
#define Set_oo 0x3f
#define Is_debug true
#define debug(...) if(Is_debug)printf("DEBUG: "),printf(__VA_ARGS__)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define eps 1e-9
bool xdy(double x,double y){return x>y+eps;}
bool xddy(double x,double y){return x>y-eps;}
bool xcy(double x,double y){return x<y-eps;}
bool xcdy(double x,double y){return x<y+eps;}
int min3(int x,int y,int z){
int tmp=min(x,y);
return min(tmp,z);
}
int max3(int x,int y,int z){
int tmp=max(x,y);
return max(tmp,z);
}
int g[6];
int str[1000];
int len;
bool used[1000];
int now[1000];
double p[20][6];
double ap[6];
int pnum;
void dfs(int n){
if(n==len){
// for(int i=0;i<len;i++){
// printf("%d",now[i]);
// }Pln();
double tmp=1;
for(int i=0;i<len;i++){
tmp*=p[i][now[i]];
}
ap[now[0]]+=tmp;
return;
}
int b=-1;
for(int i=0;i<len;i++){
if(b!=str[i]&&!used[i]){
used[i]=1;
b=str[i];
now[n]=str[i];
dfs(n+1);
used[i]=0;
}
}
}
void solve(){
Set(used,0);
dfs(0);
double all=0;
for(int i=0;i<5;i++){
all+=ap[i];
}
double maxans=0;
int index;
for(int i=0;i<5;i++){
if(ap[i]/all/g[i]>maxans+eps){
maxans=ap[i]/all/g[i];
index=i;
}
}
printf("%d %.3lf\n",index+1,maxans);
}
int main() {
ios_base::sync_with_stdio(0);
int test;
scanf("%d",&test);
while(test--){
scanf("%d",&pnum);
Set(str,0);
Set(ap,0);
len=0;
for(int i=0;i<5;i++)scanf("%d",&g[i]);
for(int i=0;i<5;i++){
for(int j=0;j<g[i];j++){
str[len++]=i;
}
}
for(int i=0;i<pnum;i++){
for(int j=0;j<5;j++){
scanf("%lf",&p[i][j]);
}
}
solve();
}
















}

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