ガチャガチャ | Codetter（こーどったー）

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size_t Rand(size_t n){
    // 0 ～ (n-1)までの整数をランダムに出力する
    return x;
}
class G_Oracle{
    void Drop();
}
void G_Oracle::Drop(){
    size_t x = Rand(101);
    if(x < 20){
        cout << "緑うーぱ" << endl;
    }else if(x < 40){
        cout << "青うーぱ" << endl;
    }else if(x < 60){
        cout << "黄うーぱ" << endl;
    }else if(x < 80){
        cout << "桃うーぱ" << endl;
    }else if(x < 100){
        cout << "橙うーぱ" << endl;
    }else{
        cout << "メタルうーぱ" << endl;
    }
}
int main(){
    G_Oracle gacha;
    // 5回回してみる
    gacha.Drop();
    gacha.Drop();
    gacha.Drop();
    gacha.Drop();
    gacha.Drop();
}
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