• C++

  • 信奥寒假集训下午班 d2 总结&作业

  • @ 2024-1-27 17:19:31

二进制的优点

1、技术实现简单 计算机是由逻辑电路组成，逻辑电路通常只有两个状态，开关的接通与断开，这 两种状态正好可以用“1”和“0”表示。

2、易于进行转换 二进制与十进制数、八进制数、十六进制数易于互相转换。

3、简化运算规则 ： 两个二进制数和、积运算组合各有三种，运算规则简单，有利于简化计算机内部结构，提高运算速度。

4适合逻辑运算 二进制只有两个数码，正好与逻辑代数中的“真”和 “假”相吻合。

位运算： C++ 中的位运算允许你对整数类型的变量进行按位操作，如按位与(&)、按位或(|)、按位异或(^)、按位取反(~)等。这些操作符可以直接应用于整数，且不依赖于任何其他类型。

下面是位运算符的一些示例和说明：

  1. ​**按位与(&)**​: 对两个整数的每一位进行与运算。只有当两个相应的二进制位都为1时，结果的相应位才为1，否则为0。
int a = 60;  // 60 = 0010 1100
int b = 13; // 13 = 0000 1101
int c = a & b; // c = 0000 1000 = 8

Copy

  1. ​**按位或(|)**​: 对两个整数的每一位进行或运算。当两个相应的二进制位中至少有一个为1时，结果的相应位为1，否则为0。
int a = 60;  // 60 = 0010 1100
int b = 13; // 13 = 0000 1101
int c = a | b; // c = 0010 1101 = 61

Copy

  1. ​**按位异或(^)**​: 对两个整数的每一位进行异或运算。当两个相应的二进制位相同时为0，否则为1。
int a = 60;  // 60 = 0010 1100
int b = 13; // 13 = 0000 1101
int c = a ^ b; // c = 0010 0001 = 49

Copy

  1. ​**按位取反(~)**​: 对一个整数的每一位进行取反运算，即把所有的1变为0，把所有的0变为1。
int a = ~65; // a = -66, 因为65的二进制表示是"1000 0001"，取反后为"..1111 1110"，即-66。

Copy

  1. ​**左移(<<)**​: 将一个整数的所有二进制位向左移动指定的位数，右侧用0填充。
  2. ​**有符号右移(>>)**​: 将一个整数的所有二进制位向右移动指定的位数，左侧根据符号位来填充。对于正数，左侧填充为0；对于负数，左侧填充为1。

image

image

基础版-猜数字小游戏

#include<iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
int main()
{
	int answer;
	int chance=5;
	int input_num;
	srand((unsigned)time(0));
	answer=rand()%100+1;
	cout<<"Please enter a number between 1 and 100"<<endl;
	for(int i=0;i<chance;i++)
		{
			cin>>input_num;
		if(input_num>answer)
		{
			cout<<"too big "<<endl;
		}else if(input_num<answer)
		{
			cout<<"too small"<<endl;
		}else{
			cout<<"bingo"<<endl;
			break;
		}
	}

return 0;
}

作业： 1、完成定制版猜数字小游戏 image image 2、计算至少猜多少次一定能猜到随机数字。 3、实现猜心术代码。想一想为什么可以猜到？ image

#include<iostream>
#include<cstdlib>//导入常用函数文件
#include<ctime>//导入时间功能头文件
using namespace std;

int main()
{
    char other;
    srand(time(0));
    char answer=rand()%13+35;
    for(int i=0;i<=99;i++)
    {
        printf("%2d ",i);
        if(i%9==0 && i<90 && i>0)
        {
            cout<<answer;
        }else{
            other=rand()%13+35;
            cout<<other;
        }
        cout<<"    ";
        
        if((i+1)%5==0)
        {
            cout<<"\n";
        }
    }

    return 0;
}

8 条评论

  • @ 2024-1-28 14:06:55

    image image

    • @ 2024-1-28 13:54:32 
      #include<iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
int main()
{
    int flag =1;
    while(flag){
        int nandu=1;
        cout<<"欢迎来到猜数字峡谷！！！"<<endl;
        cout<<"本游戏会随机生成一个1-100的数字，"<<endl;
        cout<<"你可以进行猜测，会提示你是猜大了还是猜小了。"<<endl;
        cout<<"请选择难度："<<endl;
        cout<<"1：青铜（20次）"<<endl;
        cout<<"2：白银（7次）"<<endl;
        cout<<"3：黄金（6次）"<<endl;
        cout<<"4：钻石（5次）"<<endl;
        cout<<"5：王者（3次）"<<endl;
        cout<<"请输入（1-5）："<<endl;
        cin>>nandu;
        int answer,i;
        int chance;
        switch (nandu) {
        case 1:
            chance =20;
            break;
        case 2:
            chance =7;
            break;
        case 3:
            chance =6;
            break;
        case 4:
            chance =5;
            break;
        case 5:
            chance =3;
            break;
        default:
            break;
        }
        int input_num;
        srand((unsigned)time(0));
        answer=rand()%100+1;
        cout<<"开始游戏，请输入一个数字（1-100）："<<endl;
        for(i=0;i<chance;i++)
        {
            cout<<"\n第"<<i<<"次猜测：";
            cin>>input_num;
            if(input_num>answer)
            {
                cout<<"太大了 "<<endl;
            }else if(input_num<answer)
            {
                cout<<"太小了"<<endl;
            }else{
                cout<<"恭喜你猜对了"<<endl;
                break;
            }
        }
        if(i==chance){
            cout<<"恭喜你猜错了"<<i<<"次，游戏结束！"<<endl;
        }
        cout<<"继续游戏请按1,退出游戏请按0："<<endl;
        cin>>flag;
    }
    
    
    return 0;
}
      • @ 2024-1-28 13:28:40 
        #include<iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
int main()
{
	int answer;
	int chance=5;
	int input_num;
	srand((unsigned)time(0));
	answer=rand()%100+1;
	cout<<"Please enter a number between 1 and 100"<<endl;
	for(int i=0;i<chance;i++)
		{
			cin>>input_num;
		if(input_num>answer)
		{
			cout<<"too big "<<endl;
		}else if(input_num<answer)
		{
			cout<<"too small"<<endl;
		}else{
			cout<<"bingo"<<endl;
			break;
		}
	}

return 0;
}
        • @ 2024-1-28 11:33:37 
          #include<iostream>
#include<ctime>
#include<cstdlib>
using namespace std;
int main()
{
	int answer;
	int chance=5;
	int input_num;
	srand((unsigned)time(0));
	answer=rand()%100+1;
	cout<<"Please enter a number between 1 and 100"<<endl;
	for(int i=0;i<chance;i++)
		{
			cin>>input_num;
		if(input_num>answer)
		{
			cout<<"too big "<<endl;
		}else if(input_num<answer)
		{
			cout<<"too small"<<endl;
		}else{
			cout<<"bingo"<<endl;
			break;
		}
	}

return 0;
}
          • @ 2024-1-28 11:33:14 
            #include<iostream>
#include<cstdlib>
#include<ctime>
using namespace std;

int main()
{
    char other;
    srand(time(0));
    char answer=rand()%13+35;
    for(int i=0;i<=99;i++)
    {
        printf("%2d ",i);
        if(i%9==0 && i<90 && i>0)
        {
            cout<<answer;
        }else{
            other=rand()%13+35;
            cout<<other;
        }
        cout<<"    ";
        
        if((i+1)%5==0)
        {
            cout<<"\n";
        }
    }

    return 0;
}
            • @ 2024-1-28 11:32:17

              c++

              #include<iostream>
#include<cstdlib>
#include<ctime>
using namespace std;
int main(){
	int an=1;
	while(an!=0){
		cout<<"请选择难度:\n1:青铜	2:白银	3:黄金	4:钻石	5:阴间	6:阳间"<<endl;
		int n;
		cin>>n;
		if(n==1){
			int ac=5;
			cout<<"请输入1~10的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%10+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==2){
			int ac=10;
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%50+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==3){
			int ac=5;
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==4){
			int ac=5;
			cout<<"请输入1~200的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%200+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==5){
			int ac=1;
			cout<<"请输入1~1000的数"<<endl;
			cout<<"你只有1次机会"<<endl;
			srand((unsigned)time(0));
		int num=rand()%1000+1;
		for(int i=1;i<ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i<=ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==6){
			int ac=100;
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		}
}
              • @ 2024-1-28 9:11:33 
                #include<cstdlib>
#include<ctime>
using namespace std;
int main(){
	int an=1;
	while(an!=0){
		cout<<"请选择难度:\n1:青铜	2:白银	3:黄金	4:钻石  5:王者"<<endl;
		int n;
		cin>>n;
		if(n==1){
			int ac=5;
			cout<<"目前你有5条命！！！"; 
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==2){
			int ac=4;
			cout<<"目前你有4条命！！！"; 
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"菜，就多练，输不起，就别玩，以前是以前，现在是现在！！！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==3){
			int ac=3;
			cout<<"目前你有3条命！！！"; 
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"菜，就多练，输不起，就别玩，以前是以前，现在是现在！！！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==4){
			int ac=2;
			cout<<"目前你有2条命！！！"; 
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%200+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"菜，就多练，输不起，就别玩，以前是以前，现在是现在！！！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==5){
			int ac=1;
			cout<<"目前你有1条命！！！"; 
			cout<<"请输入1~100的数"<<endl;
			cout<<"你只有1次机会"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i<=ac){
				cout<<"菜，就多练，输不起，就别玩，以前是以前，现在是现在！！！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
	    }
		return 0;
}
`
                • @ 2024-1-27 18:24:07
                  已修改

                  第一题

                  #include<iostream>
#include<cstdlib>
#include<ctime>
using namespace std;
int main(){
	int an=1;
	while(an){
		cout<<"请选择难度:\n1:青铜	2:白银	3:黄金	4:钻石	5:阴间	6:阳间"<<endl;
		int n;
		cin>>n;
		if(n==1){
			int ac=5;
			cout<<"请输入1~10的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%10+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==2){
			int ac=10;
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%50+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==3){
			int ac=5;
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==4){
			int ac=5;
			cout<<"请输入1~200的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%200+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==5){
			int ac=1;
			cout<<"请输入1~1000的数"<<endl;
			cout<<"你只有1次机会"<<endl;
			srand((unsigned)time(0));
		int num=rand()%1000+1;
		for(int i=1;i<ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i<=ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		else if(n==6){
			int ac=100;
			cout<<"请输入1~100的数"<<endl;
			srand((unsigned)time(0));
		int num=rand()%100+1;
		for(int i=1;i<=ac;i++){
			int b;
			cin>>b;
			if(b==num){
				cout<<"哈哈哈6666猜对了！"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl;
				break;
			}
			else if(b>num){
				cout<<"大了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(b<num){
				cout<<"小了"<<"你还剩"<<ac-i<<"条命"<<endl;
			}
			else if(i>ac){
				cout<<"猜错了.lose"<<endl;
				cout<<"舍得离开吗,不舍得输入任意键，残忍拒绝输入0"<<endl; 
				break;
			}
		}
		cin>>an;
		}
		}
}
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