小白的成长

#include <iostream>using namespace std;int compute(int a,int b,int(*func)(int,int))//定义函数指针，该指针指向函数的首地址{return func(a,b);}int max(int a,int b){return a>b?a:b;}int sum(int a ,int b){...

输入9个数字，构成3×3二维矩阵，输出矩阵，然后转置再输出#include <iostream>using namespace std;void swap(int &a,int &b)//转置函数，必须用引用{ int temp=a; a=b; b=temp;}int main() { int a[3][3]; int i,j; cout&lt...

初始化一個二位數組，求出每一行的和#include <iostream>using namespace std;void rownum(int A[][4],int nrow)//計算二維數組A每一行的和，nrow是行數,數組的列數是4 { for(int i=0;i<nrow;i++) { for(int j=1;j<4;j++) A[i][0]+...

#include <iostream>using namespace std;int main() { int i; int ay[20]; // ay[0]=ay[1]=1;//這兩行也可以換成 int ay[20]={1,1}; for(i=2;i<20;i++) ay[i]=ay[i-1]+ay[i-2]; for(i=0;i<20;i++) ...

#include <iostream>using namespace std;int i; //全局变量，文件作用域 int main() { i=5; //文件作用域的i赋初值 { //子块 int i; //局部变量，块作用域 i=7; cout<<i<<endl; //输出7 } ...

class Rectangle{ public: Rectangle(int left,int down,int right,int up) ~Rectangle(){} int Getleft{return itsleft;} int Getdown{return itsdown;} int Getright{return itsright;} int Getup{return ...

包含年龄、身高等属性，能够输入输出这些属性#include <iostream>using namespace std;class Dog{ public: Dog(int initialAge=0,int initialWeight=5); ~Dog(); int GetAge(){return itsAge;} void SetAge(int age){...

#include <iostream>using namespace std;class clock{public: void settime(int newh = 0, int newm = 0, int news = 0); void showtime();private: int hour, minute, second;};void clo...

#include<iostream>using namespace std;int main(){ int f(int n1,int n2); int n1, n2; cout << "输入两个数: "; cin >> n1 >> n2; cout<<f(n1,n2);}int f(int n1,int n2){...

#include<iostream>using namespace std;int main(){ int LCM(int n1,int n2); int n1, n2; cout << "输入两个数: "; cin >> n1 >> n2; cout<<LCM(n1,n2);} int LCM(int n1,int...

#include <iostream>using namespace std;double trans(double f){ double c; c=(f-32)*5/9; } int main() { double f; cin>>f;//输入华氏温度 cout<<endl<<trans(f);//输出摄氏温度 }...

#include <iostream>using namespace std;double dg(int x,int y){ if(y==0) return 1; else return x*dg(x,y-1); } int main(){ int x; int y; cout<<"请输入x和y"<<endl; cin>>x...

#include <iostream>using namespace std;double dg(int n,double x){ if(n==0) return 1; else if(n==1) return x; else return ((2*n-1)*x*dg(n-1,x)-(n-1)*dg(n-2,x)); } int main(){ cout<&...

#include <iostream>using namespace std;int dg(int n){ if(n==1) return 1; else return n+dg(n-1); } int main(){ int f; cout<<"请输入一个正整数"<<endl; cin>>f; cout<<e...

#include <iostream>using namespace std;int comm(int n,int k){ if(k>n) return 0; else if(n==k||k==0) return 1; else return comm(n-1,k)+comm(n-1,k-1);}/* run this program using the cons...

#include <iostream>using namespace std;double fac(int n)//用double型可以计算大数据的阶乘，比如99！{ double f; if(n==0) f=1; else f=fac(n-1)*n; return(f);} int main() { double fac(int n); int n; do...

自己瞎写的竟然运行成功了，感觉代码还是有点问题，再研究研究。#include<iostream>using namespace std;int main(){ int i; int j; for(i=2;i<=100;i++){ for(j=2;j<=i;j++){ if(i!=j&&i%j==0) break; ...

#include<iostream>using namespace std;int main(){ char a; //必须用char类型定义变量a for(a=32;a<=127;a++) //从ASCII为32开始到127，依次输出该字符 cout<<a<<" "; //两字符中间用空格分开 retur...

用 while 实现：#include <iostream>using namespace std;int main() { int n,i; n=39;//这个需要猜数字预先设定好 cin>>i; while(i!=n){ if(i<n) cout<<"too small"<<endl; else cout<&lt...

#include <iostream>#include <iomanip>using namespace std;struct time{ int year; int month; int day; int hour; int minute; int second;}; //声明一个time结构体int main() { time now;//定...

#include <iostream>using namespace std;int main() { int n; cout<<"你考了多少分？"; cin>>n; cout<<"你的等级是："; if(n>=90&&n<=100) cout<<"优"; else if(n>=8...

输出九九乘法表#include<iostream>using namespace std;int main(){ int i,j=0; for(i=1;i<=9;i++) { for(j=i;j<=9;j++) cout << i << '*' << j << '=' << i*j<&...