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实验1

时间:2024-10-09 14:59:56浏览次数:1  
标签:Compute cout int void v0 实验 include

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;

template<typename T>
void output(const T &c);

void test1();
void test2();
void test3();

int main()
{
    cout<<"测试1:\n";
    test1();
    cout<<"测试2:\n";
    test2();
    cout<<"测试3:\n";
    test3();
    return 0;
}

template<typename T>
void output(const T &c)
{
    for (auto &i:c)
        cout<<i<<" ";
    cout<<endl;
}

void test1()
{
    string s0{"0123456789"};
    cout<<"s0="<<s0<<endl;
    string s1{s0};
    reverse(s1.begin(),s1.end());
    cout<<"s1="<<s1<<endl;
    string s2{s0};
    reverse_copy(s0.begin(),s0.end(),s2.begin());
    cout<<"s2="<<s2<<endl;
}

void test2()
{
    vector<int> v0{2,0,4,9};
    cout<<"v0:";
    output(v0);
    
    vector<int> v1{v0};
    reverse(v1.begin(),v1.end());
    cout<<"v1:";
    output(v1);
    
    vector<int> v2{v0};
    reverse_copy(v0.begin(),v0.end(),v2.begin());
    cout<<"v2:";
    output(v2);
}

void test3() {
vector<int> v0{0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
cout << "v0: ";
output(v0);
vector<int> v1{v0};
rotate(v1.begin(), v1.begin()+1, v1.end());
cout << "v1: ";
output(v1);
vector<int> v2{v0};
rotate(v2.begin(), v2.begin()+2, v2.end());
cout << "v2: ";
output(v2);
vector<int> v3{v0};
rotate(v3.begin(), v3.end()-1, v3.end());
cout << "v3: ";
output(v3);
vector<int> v4{v0};
rotate(v4.begin(), v4.end()-2, v4.end());
cout << "v4: ";
output(v4);
}

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <numeric>
#include <iomanip>
using namespace std;
// 函数声明
// 模板函数声明
template<typename T>
void output(const T &c);
// 普通函数声明
int rand_int_100();
void test1();
void test2();
int main() 
{
    cout << "测试1: \n";
    test1();
    cout << "\n测试2: \n";
    test2();
}
template <typename T>
void output(const T &c) 
{
    for(auto &i: c)
        cout << i << " ";
    cout << endl;
}
// 返回[0, 100]区间内的一个随机整数
int rand_int_100() {
return rand() % 101;
}
// 测试1
// 对容器类对象指定迭代器区间进行赋值、排序
void test1() {
vector<int> v0(10); // 创建一个动态数组对象v0, 对象大小为10
generate(v0.begin(), v0.end(), rand_int_100); // 产生[0, 100]之间的随机整数赋值给指定迭代器区间[v0.begin(), v0.end())内的每个数据项
cout << "v0: ";
output(v0);
vector<int> v1{v0};
sort(v1.begin(), v1.end()); // 对指定迭代器区间[v1.begin(), v1.end())内数据项进行升序排序
cout << "v1: ";
output(v1);
vector<int> v2{v0};
sort(v2.begin()+1, v2.end()-1); // 对指定迭代器区间[v1.begin()+1,v1.end()-1)内数据项进行升序排序
cout << "v2: ";
output(v2);
}
// 测试2
// 对容器类对象指定迭代器区间进行赋值、计算最大值/最小值/均值
void test2() {
vector<int> v0(10);
generate(v0.begin(), v0.end(), rand_int_100);
cout << "v0: ";
output(v0);
auto iter1 = min_element(v0.begin(), v0.end());
cout << "最小值: " << *iter1 << endl;
auto iter2 = max_element(v0.begin(), v0.end());
cout << "最大值: " << *iter2 << endl;
auto ans = minmax_element(v0.begin(), v0.end());
cout << "最小值: " << *(ans.first) << endl;
cout << "最大值: " << *(ans.second) << endl;
double avg1 = accumulate(v0.begin(), v0.end(), 0)/v0.size();
cout << "均值: " << fixed << setprecision(2) << avg1 << endl;
cout << endl;
} 

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

bool is_palindrome(std::string s);

int main() {
    using namespace std;
    string s;

    while(cin >> s)  // 多组输入,直到按下Ctrl+Z后结束测试
        cout << boolalpha << is_palindrome(s) << endl;
}

bool is_palindrome(std::string s)
{
    int len=s.length();
    string s1{s.begin(),s.begin()+len/2};
    string s2{s.end()-len/2,s.end()};
    reverse(s2.begin(),s2.end());
    if (s1==s2)
        return true;
    return false;
    
}

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

std::string dec2n(int x, int n = 2);

int main() {
    int x;
    while(cin >> x) {
        cout << "十进制: " << x << endl;
        cout << "二进制: " << dec2n(x) << endl;
        cout << "八进制: " << dec2n(x, 8) << endl;
        cout << "十六进制: " << dec2n(x, 16) << endl << endl;
    }
}

string dec2n(int x,int n)
{
    if (n==2)
    {
        string r;
        while (x != 0) {
            r += (x % 2 == 0 ? "0" : "1");
            x /= 2;
          }
          return r;
    }
    else if(n==8)
    {
        string r;
        string o[8]={"0","1","2","3","4","5","6","7"};
        while (x != 0) {
            r += o[x % 8];
            x /= 8;
          }
          reverse(r.begin(),r.end());
          return r;
    }
    else if(n==16)
    {
        string r;
        string o[16]={"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"};
        while (x != 0) {
            r += o[x % 16];
            x /= 16;
          }
          reverse(r.begin(),r.end());
          return r;
    }
}

#include <bits/stdc++.h>
using namespace std;

template<typename T>
void print(const T &c);

int main ()
{
    cout<<"  ";
    vector<char> letter1{'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
    print(letter1);
    vector<char> letter2{'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
    for (int i=1;i<=26;++i)
    {
        cout<<setw(2)<<i;
        rotate(letter2.begin(), letter2.begin()+1, letter2.end());
        print(letter2);
    }
}

template<typename T>
void print(const T &c)
{
    for (auto &i:c)
        cout<<setw(2)<<i;
    cout<<endl;
}

#include<bits/stdc++.h>
using namespace std;
#define num 10
class Compute{
private:
    
    int rand_int_10();
public:
    int right_ans=0;
    void add();
    void subtract();
    void multiply();
    void except();
    void Generate_equation(Compute compute);
};

int Compute::rand_int_10(){
    
    return rand() % 11;
}

void Compute::add(){
    int a=Compute::rand_int_10(),b=Compute::rand_int_10();
    int ans=a+b,input;
    string formula=to_string(a)+" + "+to_string(b)+" = ";
    cout<<formula;
    cin>>input;
    if (input==ans)
        right_ans+=1;
}

void Compute::subtract(){
    int a=Compute::rand_int_10(),b=Compute::rand_int_10();
    int ans=a-b,input;
    while(ans<0)
    {
        a=Compute::rand_int_10(),b=Compute::rand_int_10();
        ans=a-b;
    }
    string formula=to_string(a)+" - "+to_string(b)+" = ";
    cout<<formula;
    cin>>input;
    if (input==ans)
        right_ans+=1;
}

void Compute::multiply(){
    int a=Compute::rand_int_10(),b=Compute::rand_int_10();
    int ans=a*b,input;
    string formula=to_string(a)+" * "+to_string(b)+" = ";
    cout<<formula;
    cin>>input;
    if (input==ans)
        right_ans+=1;
}

void Compute::except(){
    int a=Compute::rand_int_10(),b=Compute::rand_int_10();
    int input;
    double ans=(double)a/b;
    while(ans-int(ans)!=0)
    {
        a=Compute::rand_int_10(),b=Compute::rand_int_10();
        ans=(double)a/b;
    }
    string formula=to_string(a)+" / "+to_string(b)+" = ";
    cout<<formula;
    cin>>input;
    if (input==ans)
        right_ans+=1;
}

void Compute::Generate_equation(Compute compute)
{
    for (int i=1;i<=num;++i)
    {
        int No=rand() % 4;
        switch (No)
        {
            case 0:compute.add();break;
            case 1:compute.subtract();break;
            case 2:compute.multiply();break;
            case 3:compute.except();break;
        }
    }
    
    cout<<"正确率:"<<fixed<<setprecision(2)<<double(compute.right_ans*100/num)<<"%"<<endl;
}

int main ()
{
    srand((unsigned)time(NULL));
    Compute compute;
    compute.Generate_equation(compute);
    return 0;
}

 

标签:Compute,cout,int,void,v0,实验,include
From: https://www.cnblogs.com/5742TD/p/18454237

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