NOI / 1.1编程基础之输入输出
01:Hello, World!
答：
 

#include<bits/stdc++.h>
using namespace std;
int main(){
    cout<<"Hello, World!";
    return 0;    
} 

02:输出第二个整数
答：
 

#include<iostream>
using namespace std;
int main(){
    int a,b,c;
    cin>>a>>b>>c;
    cout<<b;
    return 0;    
} 

03:对齐输出
答：
 

#include <iostream> 
#include <iomanip> 
using namespace std;
int main()
{
    int a, b, c;
    cin >> a >> b >> c;
    // 可以三行合并为一行写完，不过太长了 
    cout << setw(8) << a << ' ';
    cout << setw(8) << b << ' ';
    cout << setw(8) << c;
    return 0;
}

04:输出保留3位小数的浮点数
答
 

#include<iostream>
using namespace std;
int main(){
    float a;
    cin>>a;
    printf("%0.3f",a);
    
    return 0;    
} 

05:输出保留12位小数的浮点数
答：
 

#include<iostream>
using namespace std;
int main(){
    double a;
    cin>>a;
    printf("%0.12f",a);
    
    return 0;    
} 

06:空格分隔输出
答
 

#include<iostream>
using namespace std;
int main()
{
    int b;
    char c;
    float e;
    double a;
    cin>>c>>b>>e>>a;
    cout<<c<<" "<<b<<" ";    
    printf("%0.6f ",e);
    printf("%0.6f ",a);
    return 0;    
} 

07:输出浮点数
答
 

#include <iostream>
using namespace std;

int main()
{
	double f;
	scanf("%lf", &f);
	printf("%f\n%.5f\n%e\n%g", f, f, f, f);
	return 0;
}

08:字符三角形
答
 

#include<iostream>
using namespace std;
int main()
{
    char a;
    cin>>a;
    
    cout<<"  "<<a<<endl;
    cout<<" "<<a<<a<<a<<endl;
    cout<<a<<a<<a<<a<<a<<endl;
    return 0;
}

09:字符菱形
答

#include<iostream>
using namespace std;
int main()
{
    char a;
    cin>>a;
    
    cout<<"  "<<a<<endl;
    cout<<" "<<a<<a<<a<<endl;
    cout<<a<<a<<a<<a<<a<<endl;
    cout<<" "<<a<<a<<a<<endl;
    cout<<"  "<<a<<endl; 
    return 0;
}

10:超级玛丽游戏
 

#include<iostream>
using namespace std;
int main()
{
	cout<<"                ********"<<endl;
	cout<<"               ************"<<endl;
	cout<<"               ####....#."<<endl;
	cout<<"             #..###.....##...."<<endl;
	cout<<"             ###.......######              ###                 ###           ###           ###"<<endl; 
	cout<<"                ...........               #...#               #...#         #...#         #...#"<<endl;
	cout<<"               ##*#######                 #.#.#               #.#.#         #.#.#         #.#.#"<<endl;
	cout<<"            ####*******######             #.#.#               #.#.#         #.#.#         #.#.#"<<endl;
	cout<<"           ...#***.****.*###....          #...#               #...#         #...#         #...#"<<endl;
	cout<<"           ....**********##.....           ###                 ###           ###           ###"<<endl;
	cout<<"           ....****    *****...."<<endl;
	cout<<"             ####        ####"<<endl;
	cout<<"           ######        ######"<<endl;
	cout<<"##############################################################              ##################################"<<endl;
	cout<<"#...#......#.##...#......#.##...#......#.##------------------#              #...#......#.##------------------#"<<endl;
	cout<<"###########################################------------------#              ###############------------------#"<<endl;
	cout<<"#..#....#....##..#....#....##..#....#....#####################              #..#....#....#####################"<<endl;
	cout<<"##########################################    #----------#                  ##############    #----------#"<<endl;
	cout<<"#.....#......##.....#......##.....#......#    #----------#                  #.....#......#    #----------#"<<endl;
	cout<<"##########################################    #----------#                  ##############    #----------#"<<endl;
	cout<<"#.#..#....#..##.#..#....#..##.#..#....#..#    #----------#                  #.#..#....#..#    #----------#"<<endl;
	cout<<"##########################################    ############                  ##############    ############"<<endl;
	
	return 0;	
}