1 import java.util.Scanner;
2
3 public class test
4 {
5 public static void main(String[] args)
6 {
7 int i = 0;
8 int sum = 0;
9
10 while(i<100)
11 {
12 i++;
13 sum = sum+i;
14 }
15
16 System.out.println(sum);
17 }
18 }
19 //do while循环 先执行后判断，至少执行一遍
20 //while 先判断后执行
1 #include<iostream>
2 #include <iomanip>
3 #include<cstdio>
4 #include<cmath>
5 #include<cstring>
6 using namespace std;
7 class Student
8 {
9 public:
10 int sex;
11 string name;
12 };
13 void test01()
14 {
15 int n;
16 cin >> n;
17 Student* s = new Student[n];
18 for (int i = 0; i < n; i++)
19 {
20 cin >> s[i].sex >> s[i].name;
21 }
22 int flag[50] = { 0 };
23 for (int i = 0; i < n; i++)
24 {
25 for (int j = n - 1; j >= 0; j--)
26 {
27 if (flag[i] == 0 && flag[j] == 0 && s[i].sex != s[j].sex)
28 {
29 cout << s[i].name << " " << s[j].name << endl;
30 flag[i] = 1;
31 flag[j] = 1;
32 }
33 }
34 }
35 delete[] s;
36 }
37 int main()
38 {
39 test01();
40 return 0;
41 }
