#include<iostream> using namespace std; int main() { double a[3], m, n,b=100.0,c; while (cin >> m >> n) { while (n > 10) { cout << "请输入比10小的n的值" << endl; cin >> n; } c = 0; for (a[0] = 1; a[0] < 101; a[0]++) { for (a[1] = 1; a[1] <= 100 - a[0]; a[1]++) { for (a[2] = 1; a[2] <= 100 - a[0] - a[1]; a[2]++) { b = m * a[0] + n * a[1] + a[2] *0.5; if (b = 100) { c++; break; } else { cout << "no solution"; break; } } } }cout<<c; } }

#include <iostream>

#include <iostream> #include <iomanip> using namespace std; int main() { int n,i,k=0; cin>>n; for(i=n*n;i>=1;i--) { cout<<setw(5)<<i; k++; if(k%n==0) cout<<endl; } cout<<endl; return 0;

4.22 c++周作业.docx

i <= 100; ++i) { if (i % 3 == a && i % 5 == b && i % 7 == c) { cout << i << endl; return 0; } } cout << "无解" << endl; return 0; } ### 2. 两点距离 **知识点**： - **数学公式应用**：使用...

#include <iostream> #include <cmath> using namespace std; int main() { double deposit = 100.0; double monthly_interest_rate = 0.00417; double account_balance = deposit; for (int i = 0; i < 6; i++) { account_balance = (account_balance + deposit) * (1 + monthly_interest_rate); } cout << "After 6 months, the account balance will be: $" << round(account_balance * 100) / 100 << endl; return 0; }将该代码改写为c语言

double deposit = 100.0; double monthly_interest_rate = 0.00417; double account_balance = deposit; for (int i = 0; i < 6; i++) { account_balance = (account_balance + deposit) * (1 + monthly_...

请指出此代码的错误，并给出解释和正确写法#include<iostream> using namespace std; int main() { double a,b; cin>>a>>b; printf("%.3lf%%",100*a/b); return 0; }

#include<iostream> using namespace std; int main(){ double a, b; if (cin >> a >> b && b != 0) { // 添加条件检查防止除以零 double percentage = 100 * a / b; cout << fixed << setprecision(2); // ...

#include <iostream> #include <iomanip> using namespace std; int main() { double price; cin >> price; double cost = 0.0; // write your code here....... if(price>=100&&price<500) cost=price0.9; else if(price>=500&&price<2000) cost=price0.8; else if(price>=2000&&price<5000) cost=price0.7; else if(price>=5000) cost=price0.6; cout << setiosflags(ios::fixed) << setprecision(1) << cost << endl; return 0; }

- 如果价格在 100 到 500 之间（包含100和500），折扣为原价的 90%； - 如果价格在 500 到 2000 之间（包含500和2000），折扣为原价的 80%； - 如果价格在 2000 到 5000 之间（包含2000和5000），折扣为原价的 70%；...

#include <iostream> #include <string> using namespace std; class Point { public: string name; double x; double y; friend ostream& operator<<(ostream& os, const Point& p); }; ostream& operator<<(ostream& os, const Point& p) { os << p.name << "(" << p.x << "," << p.y << ")"; return os; } int main() { Point pt={2,3}; cout << pt << endl; return 0; }如何绘制点与点之间的相对位置

#include <QtGui> class Point { public: QString name; double x; double y; }; class MyWidget : public QWidget { public: MyWidget(QWidget *parent = nullptr) : QWidget(parent) { setFixedSize(400, ...

#include "math.h" #include "stdio.h" #include <iostream> #include <cstdlib> #include <fstream> #include <strstream> #include <iomanip> #include <cmath> #include <string> #include <ctime> #include <sstream> using namespace std; //本程序要求BB[TG][TG]的逆矩阵，方法是构造一个单元矩阵BBN[TG][TG]。让BB[TG][TG]在一系列的线性变换下变为单元矩阵，则BBN[TG][TG]在相应线性变换下就会变为 //BB[TG][TG]的逆矩阵。 #define f(x) (2(x)(x)(x)-(x)-1) #define f1(x) (((x)+1)/2.0) #define TG 7 #define Max 100 double F[TG],F1[TG]; int change; double X[Max+1]; double highf,lengthf; double s; void Deidai() { int i,j,k,k1; double i1,s; int mid2; int Time; / for(i=0;i<TG;i++) { for(j=0;j<TG;j++) printf("%f ",BB[i][j]); printf("\n"); } */ X[0]=0; for(Time=0;Time<Max;Time++) {s=f1(X[Time]); X[Time+1]=pow(s,1/3.0); } } void main() { int i,j,k,I,J; Deidai(); for(i=1;i<=Max;i++) printf("X[%d=%f ",i,X[i]); }

具体来说，它先把X[0]初始化为0，然后循环计算X[1]到X[Max]的值。每次计算都是把前一次计算出来的值代入一个简单的递推公式，这个公式的形式是：s = f1(X[Time]); X[Time+1] = pow(s,1/3.0); 其中f1函数是一个简单...

在C++中#include <iostream> using namespace std; class Student {public: Student(int n,float s):num(n),score(s){} int num; float score; }; int main() {Student stud[5]={ Student(101,78.5),Student(102,85.5),Student(103,98.5), Student(104,100.0),Student(105,95.5)};这段代码中的主函数表达啥意思

基本数据类型包括int、float、double、char等，用于表示基本数据类型的值。派生数据类型包括数组、结构体、联合体和指针等，用于表示不同类型数据的集合或者指向数据的指针。在C中同时支持有符号和无符号的数据类型...

#include<iostream> #include<stdlib.h> #include<time.h> #include<windows.h> #define+M+100+ using+name

这段代码是C++代码，它包含了一些头文件和宏... while ( cin >> r && r <= 10000 && r >= 1 && r != EOF ) { double s; s = PI * pow(r,2); cout << fixed << setprecision(7) << s << endl; } return 0; }

这段代码解决这个问题错在哪里：#include <iostream> #include <string> #include <iomanip> using namespace std; double calculateDegree(const string& num) { int count = 0; int length = num.length(); bool isNegative = false; bool isEven = false; // 判断是否为负数 if (num[0] == '-') { isNegative = true; length=length-1; } // 统计2的个数 for (char c : num) { if (c == '2') { count++; } } // 判断是否为偶数 if ((num[length - 1] - '0') % 2 == 0) { isEven = true; } // 计算犯二程度 double degree = static_cast<double>(count) / length; if (isNegative) { degree = 1.5; } if (isEven) { degree = 2; } return degree * 100; } int main() { string num; cin >> num; double degree = calculateDegree(num); cout << fixed << setprecision(2) << degree << "%" << endl; return 0; }

using namespace std; double calculateDegree(const string& num) { int count = 0; int length = num.length(); bool isNegative = false; bool isEven = false; // 判断是否为负数 if (num[0] == '-') { ...

#include <graphics.h> #include<conio.h> #include<cmath> #include<iostream> using namespace std; class SineGraph { protected: double A, w, b; int m, n;//m,n表示函数显示范围 int color, step; public: SineGraph(double i, double j, double k, int x, int y, int getcolor = WHITE, int getstep = 1) { i = A; j = w; k = b; m = x; n = y; getcolor = color; getstep = step; } void draw() { for (int x = m; m < n; x += step) { cleardevice(); line(x, A * sin((w * x + b) + 200), x + 1, A * sin(w * (x + 1) + b) + 200); Sleep(30); } } void update() { b += 0.1; if (b > 100) b = -100; } }; int main() { initgraph(640, 480,1); // 设置窗口大小为 640x480 SineGraph sg(100,0.05,10,200,500,RED); for (int i = 0; i < 1000; i++) { sg.update(); sg.draw(); } sg.draw(); // 绘制正弦图形 _getch(); // 等待按键退出 closegraph(); // 关闭图形窗口 return 0; }找出代码错误

SineGraph(double i, double j, double k, int x, int y, int getcolor = WHITE, int getstep = 1) { A = i; w = j; b = k; m = x; n = y; color = getcolor; step = getstep; } 2. 在 draw() 函数中，...

优化#include <iostream> #include <string.h> #include <vector> #include <ctime> using namespace std; class Bank{ private: string account; string create_time; double balance; vector< pair<time_t, double> > history; public : Bank(string accountNumber,double balabce){ accountNumber= accountNumber; balance = balance; create_time = time(NULL); } void deposit(double amount){ balance +=amount; time_t deposit_time =time(NULL); history.push_back("在" + ctime(&deposit_time)+"存入"+to_string(amount)+"元"); } bool Withdraw(double amount){ if(amount>balance){ return false; } balance -=amount; time_t Withdraw_time =time(NULL); history.push_back("在"+ctime(&Withdraw_time)+"取出"+to_string(amount)); return true; } double GetBalance()const{ return balance; } time_t GetCreateTime()const{ return create_time; } vector< pair<time_t, double> >GetHistory()const{ return history; } int main(){ Bank account("12345",100.0); account.deposit(50.0); account.Withdraw(125.0); account } };

cout << "在" << ctime(&record.first) << type << abs(record.second) << "元" << endl; } } }; int main() { Bank account("12345", 100.0); account.deposit(50.0); account.Withdraw(125.0); account....

#include <iostream> #include <string> using namespace std; class Player {private: string player_name; double player_number; int player_level; int experience;public: Player(string name, double number, int level, int exp) { player_name = name; player_number = number; player_level = level; experience = exp; } void gainExperience(int exp) { experience += exp; if (experience > int player_level* 100,player_level++) { ; cout << "恭喜升级，当前等级为" << player_level << endl; } } void show() { cout << "姓名：" << player_name << endl; cout << "序号：" << player_number << endl; cout << "等级：" << player_level << endl; cout << "经验：" << experience << endl; }}; int main() { Player n("368", 64738, "1", 0); n.gainExperience(120); n.show(); return 0;}改正该程序，

using namespace std; class Player { private: string player_name; double player_number; int player_level; int experience; public: Player(string name, double number, int level, int exp) { player...

编译器:C++ (g++) 在一个平面游戏里，当一个大泡泡与一个小泡泡相遇时，会合并成一个更大的泡泡。新泡泡的圆心为两个泡泡的圆心的中点，新泡泡的面积为两个泡泡的面积之和。请在下述代码中补充Bubble类的设计，使得下述代码可以正常运行。显然，你需要一个自定义oeprator+操作符函数。裁判测试程序样例： //Project - EatBubble #include <iostream> #include <cmath> #include <cstdio> using namespace std; //在此处定义Bubble类 int main(){ double x=0, y=0, r=0; cin >> x >> y >> r; auto a = Bubble(x,y,r); //参数依次是圆心的x坐标，y坐标，圆半径 cin >> x >> y >> r; auto b = Bubble(x,y,r); auto c = a + b; printf("New Bubble: [(%.2f, %.2f), %.2f]",c.x,c.y,c.r); return 0; } 输入样例： 100.0 200.0 10.1 70.0 120.0 20.2 输出样例： New Bubble: [(85.00, 160.00), 22.58] 请注意：函数题只需要提交相关代码片段，不要提交完整程序。

#include <iostream> #include <cmath> #include <cstdio> using namespace std; class Bubble { public: double x, y, r; // 圆心坐标和半径 Bubble() {} // 默认构造函数 Bubble(double _x, double _y, ...

哪里出问题了#include <iostream> #include <string.h> #include <vector> #include <ctime> using namespace std; class Bank{ private: string account; time_t create_time; double balance; vector< pair<time_t, double> > history; public : Bank(string accountNumber,double balance){ accountNumber= accountNumber; this->balance = balance; create_time = time(NULL); } void deposit(double amount){ balance +=amount; time_t deposit_time =time(NULL); history.emplace_back(make_pair(deposit_time, amount)); } bool Withdraw(double amount){ if(amount>balance){ return false; } balance -=amount; time_t Withdraw_time =time(NULL); history.emplace_back(make_pair(Withdraw_time, -amount)); return true; } void printHistory() { for (auto& record : history) { string type = (record.second > 0) ? "存入" : "取出"; cout << "在" << ctime(&record.first) << type << abs(record.second) << "元" << endl; } } double GetBalance()const{ return balance; } time_t GetCreateTime() const { return create_time; } vector< pair<time_t, double> >GetHistory()const{ return history; } int main(){ Bank account("12345",100.0); account.deposit(50.0); account.Withdraw(125.0); account.printHistory(); return 0; } };

cout << "在" << ctime(&(record.first)) << type << abs(record.second) << "元" << endl; } } double GetBalance() const { return balance; } time_t GetCreateTime() const { return create_time; } ...

xmmintrin.h文件报错#ifndef a #define a #include "student.h" #include <iostream> #endif using namespace std; int main(){ student s1; s1.scoretotalcount(100); student s2; s2.scoretotalcount(90); student s3; s3.scoretotalcount(80); student s4; s4.scoretotalcount(95); student s5; s5.scoretotalcount(85); student s6; s6.scoretotalcount(100); cout << "the total score :" << student::sum()<<endl; cout << " the average score of the class:" << student::average() << endl; }#ifndef a #define a #include "student.h" #include <iostream> #endif using namespace std; void student::scoretotalcount(double s){ score = s; count++; total = total + score; cout << "the student" << count << "'s score=" << score << endl << "total score=" << total <<endl<< "th number of student:" << count<<endl; }class student{ double score; static int count; static double total; public: void scoretotalcount(double s); static double sum(){ return total; } static double average(){ return total/count;} }; int student::count = 0; double student::total = 0;

#include <iostream> using namespace std; class student{ double score; static int count; static double total; public: void scoretotalcount(double s); static double sum(){ return total; } static ...

#include<iostream>using namespace std; int main(){ int d=0,f=0; cin>>d>>f; int sum=df; int a[d+1][f+1],b[d+1][f+1]; int same=0; for(int i=1;i<=d;i++){ for(int j=1;j<=d;j++){ cin>>a[i][j]; } } for(int i=1;i<=d;i++){ for(int j=1;j<=d;j++){ cin<<a[i][j]; } } for(int i=1;i<=d;i++){ for(int j=1;j<=d;j++){ if(a[i][j]==b[i][j]){ s++; } } } cout<<double((same/sum)100); return 0; }

using namespace std; int main() { int d = 0, f = 0; cin >> d >> f; int sum = d * f; int a[d + 1][f + 1], b[d + 1][f + 1]; int same = 0; for (int i = 1; i <= d; i++) { for (int j = 1; j <= f; j...

#include<iostream> #include<vector> #include<ctime> #include<algorithm> #include"Queen.h" using namespace std; std::vector<int> CreatRandomPrice(int min, int max, int num) { std::vector<int> price; if (max - min + 1 < num) { return price; } srand(time(0)); for (auto i{ 0 }; i < num; i++) { while (true) { auto temp{ rand() % (max + 1 - min) + min }; auto iter{ find(price.begin(),price.end(),temp) }; if (price.end() == iter) { price.push_back(temp); break; } } } return price; } int main() { Queue<double,24> queue; auto rand = CreatRandomPrice(100, 999, 168); double sum = 0, average; for (int i = 0; i < 168; i++) { if (!queue.isFull()) { queue.insert(rand[i]); sum += rand[i]; average = sum / (i + 1); } else { sum = sum - queue.getFront() + rand[i]; average = sum / 24; queue.remove(); queue.insert(rand[i]); } cout << "当前价格: " << rand[i] << ", 最近24小时商品平均价格: " << average << endl; } return 0; }

接着，在 main 函数中，它使用 CreatRandomPrice 函数生成 168 个随机数，并将它们插入到 Queue 对象中。当队列还未满时，直接插入并计算平均值；当队列已满时，先移除队首元素，再插入新元素并计算平均值，并输出...

#include <iostream> #include <string> using namespace std; class Animal{ protected: string name; string color; public: Animal(string _name, string _color) { name=_name; color=_color; } void show() { cout<<"我的名字叫" <<name<<endl; cout<<"我的毛色是"<<color<<endl; } }; class Fly{ protected: double h; public: Fly(double _h) { h=_h; } void show() { cout<<"我可以飞到" <<h<<"米高"<<endl; } }; class FlyDog: public Animal,public Fly { public: FlyDog(string _name, string _color, double _h): Anmial(string_name,string_color),Fly(double_h) { } void show() { cout<<"我是一条会飞的小狗"<<endl; fd.show } }; int main() { string name,color; double h; cin>>name>>color>>h; FlyDog *fd = new FlyDog(name,color,h); fd.show(); delete fd; }

using namespace std; class Animal { protected: string name; string color; public: Animal(string _name, string _color) { name = _name; color = _color; } void show() { cout << "我的名字叫" <...

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#include <iostream>

4.22 c++周作业.docx

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