1357 [Ba1000] Simple C++ Program
2017-05-28 14:29
288 查看
Description
C++的输入输出使用cin 和cout函数,这两个函数存在于<iostream>头文件中。
在C语言中,输出和输出一般需要指明变量的类型,而在C++中,输入和输出无须指明变量的类型。eg:
int number1; float number2; char x; scanf("%d%f%c", &number1, &number2, &x);
以上的C语言程序在C++中为
#include <iostream> // 包含输入输出函数的头文件 using namespace std; // 命名空间,详细含义在以后了解,如果不加这一句,cin会报错 int number1; float number2; char x; cin >> number >> number2 >> x;
如果在上面的程序中不加上* using namespace std; *,则需要改为std::cin >> number >> number2 >> x;
输出:
#include <iostream> std::cout << "hello world!" << std::endl; // endl == '\n'
请使用C++的输入输出进行练习。
Input
int a, b; double d_x, d_y; char arr[10][11];
Output
a的b次方(用pow()函数,头文件cmath)d_x*d_y
数组从最后一行到第一行的输出
Simple Input
2 33.14 4.25
0000000000
1111111111
2222222222
3333333333
4444444444
5555555555
6666666666
7777777777
8888888888
9999999999
Simple Output
813.345
9999999999
8888888888
7777777777
6666666666
5555555555
4444444444
3333333333
2222222222
1111111111
0000000000
Submission
answer.cpp
#include<iostream>
#include<cmath>
using namespace std;
int main(){
int a, b; double d_x, d_y; char arr[10][11];
cin>>a>>b>>d_x>>d_y;
for(int i=0;i<10;i++){
cin>>arr[i];
}
cout<<pow(a,b)<<endl<<d_x*d_y<<endl;
for(int i=9;i>=0;i--){
cout<<arr[i]<<endl;
}
return 0;
}
Standard Answer
answer.cpp
#include <iostream>
#include <cmath>
using namespace std;
int main() {
int a, b; double d_x, d_y; char arr[10][11];
cin >> a >> b >> d_x >> d_y;
for (int i = 0; i < 10; ++i) {
cin >> arr[i];
}
cout << pow(a, b) << endl;
cout << d_x*d_y << endl;
for (int i = 9; i >= 0; --i) {
cout << arr[i] << endl;
}
return 0;
}
相关文章推荐
- Simple "virus" like program in C++
- [C++ Primer] 1.Write a Simple C++ Program
- C++之父文章1:How do I write this very simple program?
- Writing a simple C++ Program
- 1.1 Writing a Simple C++ Program
- C++ - A Simple Calculator Program
- c++ simple project structure
- C++ How To Program整理(9)
- C++ How To Program整理(11)
- Shell / sed Program To Remove All C and C++ Comments From Program File
- Very Very Simple C++ Testing Framework
- simple c++ binding ---- luna & lunar
- A Simple RS-232 Serial Port Communication Program
- MSDN文档翻译 Learn to Program for Windows in C++ 005 序章第三节
- C++第二次实验-输出1000-10000之间,个位和千位相等的所有质数
- SKP1000 Program Ford Focus 2014 Folding Key without Pin Code
- another c++ program
- C++第4次实验(求1000以内所有偶数的和)
- a new c++ program
- Writing a Simple Program with Qt Creator