分組活動v2

#include<iostream>
#include<cstring>
#include<cctype>
using namespace std;

int main(){
    int color[110]={};//梅花(club)=1 方塊(diamond)=2 紅心(heart)=3 黑桃(spade)=4
    int num[110]={};//A=1 J=11 Q=12 K=13
    char kind[110]={};
    int n;
    //===========cin===========
    cin>>n;
    char club[]={"club"};
    char diamond[]={"diamond"};
    char heart[]={"heart"};
    char spade[]={"spade"};

    for(int i=1;i<=n;i++){
        char colortmp[20];
        char numtmp[10];
        cin>>kind[i]>>numtmp>>colortmp;
        if(strcmp(colortmp,club)==0){
            color[i]=1;
        }
        if(strcmp(colortmp,diamond)==0){
            //cout<<"hi";
            color[i]=2;
        }
        if(strcmp(colortmp,heart)==0){
            color[i]=3;
        }
        if(strcmp(colortmp,spade)==0){
            color[i]=4;
        }

        if(numtmp[0]=='2'){
        num[i]=2;
        }
        if(numtmp[0]=='3'){
        num[i]=3;
        }
        if(numtmp[0]=='4'){
        num[i]=4;
        }
        if(numtmp[0]=='5'){
        num[i]=5;
        }
        if(numtmp[0]=='6'){
        num[i]=6;
        }
        if(numtmp[0]=='7'){
        num[i]=7;
        }
        if(numtmp[0]=='8'){
        num[i]=8;
        }
        if(numtmp[0]=='9'){
        num[i]=9;
        }
        if(numtmp[0]=='1'){
        num[i]=10;
        }

        if(numtmp[0]=='A'){
        num[i]=1;
        //cout<<"if a"<<endl;
        }
        if(numtmp[0]=='J'){
            num[i]=11;
        }
        if(numtmp[0]=='Q'){
            num[i]=12;
        }
        if(numtmp[0]=='K'){
            num[i]=13;
        }

        //cout<<(int)numtmp[0]<<endl;
    }


    /*/========test print==========
    cout<<"kind[i]"<<endl;
    for(int test=1;test<=n;test++){
        cout<<kind[test]<<" ";
    }
    cout<<endl;
    cout<<"num[i]"<<endl;
    for(int test=1;test<=n;test++){
        cout<<num[test]<<" ";
    }
    cout<<endl;
    cout<<"color[]"<<endl;
    for(int test=1;test<=n;test++){
        cout<<color[test]<<" ";
    }
    cout<<endl;
    *///==========test end==========
    int result[110]={};
    for(int i=1;i<=n;i++){
        if(kind[i]=='A'){
            result[i]=(((color[i]+2)*(num[i]+4))%8);
        }
        if(kind[i]=='B'){
            result[i]=(((color[i]+1)*(num[i]+7))%8);
        }
        if(kind[i]=='C'){
            result[i]=(((color[i]+3)*(num[i]+3))%8);
        }
    }

    /*/========test======
    for(int test=1;test<=n;test++){//test
        cout<<result[test]<<" ";
    }
    cout<<endl;
    *///======test=======


    int total[100]={};
    for (int i=1;i<=n;i++){
        int tmp=result[i];
        total[tmp]+=1;
    }


    /*/==========test========
    for(int test=0;test<=n;test++){//test
        cout<<total[test]<<" ";
    }
    cout<<endl;
    *///=====================



    int totalplus=0;//total 相加
    for(int i=0;i<=10;i++){
        if(total[i]>=2){
            totalplus+=total[i];
            //totalplus+=2;
            //cout<<"totalplus+=1  "<<i<<endl;
        }
    }
    //cout<<totalplus<<endl;
    //cout<<(double)totalplus/(double)(n*(n-1))<<endl;
    double ans=(double)totalplus/(double)(n*(n-1));

    ans=ans*100;
    ans=(int)(ans+0.5);
    cout<<(double)ans/100<<endl;

}




/*

8
A A spade
B 2 club
C 5 diamond
C J spade
B 4 diamond
C Q club
A 10 heart
B A club

8
A A spade
B 8 club
C 5 diamond
C k spade
B 3 diamond
C Q spade
A 10 heart
B A heart




*/