辽宁师范大学 • 张大为@https://daweizh.github.io/noip/

1.1 编程基础之输入输出(10)

1. Hello,World!，http://noi.openjudge.cn/ch0101/01/[+]

   #include <iostream>
   
   int main() {
       std::cout << "Hello, World!" << std::endl;
   
       return 0;
   }
   

2. 输出第二个整数，http://noi.openjudge.cn/ch0101/02/[+]

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

3. 对齐输出，http://noi.openjudge.cn/ch0101/03/[+]

   #include <iostream>
   using namespace std;
   
   int main() {
       int a,b,c;
       
       cin >> a >> b >> c;
       printf("%8d %8d %8d",a,b,c);
   
       return 0;
   }
   

4. 输出保留3位小数的浮点数，http://noi.openjudge.cn/ch0101/04/[+]

   #include <iostream>
   using namespace std;
   
   int main() {
       float a;
       
       cin >> a ;
       printf("%.3f",a);
   
       return 0;
   }
   

5. 输出保留12位小数的浮点数，http://noi.openjudge.cn/ch0101/05/[+]

   #include <iostream>
   using namespace std;
   
   int main() {
       double a;
       
       cin >> a ;
       printf("%.12f",a);
   
       return 0;
   }
   

6. 空格分隔输出，http://noi.openjudge.cn/ch0101/06/[+]

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

7. 输出浮点数，http://noi.openjudge.cn/ch0101/07/[+]

   #include <iostream>
   using namespace std;
   
   int main() {
       double a;
       
       cin >> a ;
       printf("%f\n",a);
       printf("%.5f\n",a);
       printf("%e\n",a);
       printf("%g\n",a);
   
       return 0;
   }
   

8. 字符三角形，http://noi.openjudge.cn/ch0101/08/[+]

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

9. 字符菱形，http://noi.openjudge.cn/ch0101/09/[+]

   #include <iostream>
   
   int main() {
       char ch;
       scanf("%c", &ch);
       printf("  %c\n",ch);
       printf(" %c%c%c\n",ch,ch,ch);
       printf("%c%c%c%c%c\n",ch,ch,ch,ch,ch);
       printf(" %c%c%c\n",ch,ch,ch);
       printf("  %c\n",ch);
       
       return 0;
   }
   

10. 超级玛丽游戏，http://noi.openjudge.cn/ch0101/10/[+]

    #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;
    }
    

参考网址

1. http://noi.openjudge.cn