15 条题解

  • 6
    @ 2026-5-16 10:54:46

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

  • 1
    @ 2026-5-24 9:19:06

    § 小凶 §

    • 0
      @ 2026-6-12 20:49:20
      #include <iostream>
      #include <cstring>
      #include <cstdio>
      
      #define XOR_KEY 0x13
      #define MAGIC_NUM 42
      #define BUF_SIZE 256
      
      using namespace std;
      
      typedef unsigned char u8;
      typedef unsigned int u32;
      
      u8 magic_table[256];
      u32 seed = 12345;
      
      u32 lcg() {
          seed = seed * 1103515245 + 12345;
          return seed;
      }
      
      void init_table() {
          for (int i = 0; i < 256; i++) {
              magic_table[i] = (u8)(i ^ XOR_KEY ^ ((i * MAGIC_NUM) & 0xFF));
          }
      }
      
      u8 obfuscate(u8 c, int idx) {
          return magic_table[(c + idx * MAGIC_NUM) & 0xFF];
      }
      
      u8 deobfuscate(u8 c, int idx) {
          for (int i = 0; i < 256; i++) {
              if (obfuscate((u8)i, idx) == c) {
                  return (u8)i;
              }
          }
          return 0;
      }
      
      void recursive_print(u8 *arr, int len, int idx) {
          if (idx >= len) {
              return;
          }
          u8 ch = deobfuscate(arr[idx], idx);
          cout << (char)ch;
          recursive_print(arr, len, idx + 1);
      }
      
      int do_nothing(int a, int b, int c) {
          return (a + b - c) * (a % 2 + b % 3 + c % 7);
      }
      
      int main() {
          init_table();
      
          u8 raw_data[] = {
              obfuscate('H', 0), obfuscate('e', 1), obfuscate('l', 2),
              obfuscate('l', 3), obfuscate('o', 4), obfuscate(' ', 5),
              obfuscate('w', 6), obfuscate('o', 7), obfuscate('r', 8),
              obfuscate('l', 9), obfuscate('d', 10), obfuscate('\n', 11)
          };
      
          int dummy1 = do_nothing(1, 2, 3);
          int dummy2 = do_nothing(10, 20, 30);
          char buffer[BUF_SIZE];
          memset(buffer, 0, BUF_SIZE);
          memcpy(buffer, raw_data, sizeof(raw_data));
      
          for (int i = 0; i < 5; i++) {
              dummy1 += lcg() % 100;
              dummy2 -= lcg() % 50;
          }
      
          recursive_print((u8*)buffer, sizeof(raw_data), 0);
      
          if (dummy1 > dummy2) {
              return 0;
          } else {
              return 0;
          }
      }
      
      

      67

      • 0
        @ 2026-6-12 20:14:22

        § 大吉 §

        • 0
          @ 2026-5-24 10:08:55

          § 小凶 §

          • -1
            @ 2026-7-8 15:36:26
            #include <iostream>
            using namespace std;
            
            int main() {
            	cout << "Hello world";
            	return 0;
            }
            
            
            • -2
              @ 2026-6-12 22:21:23

              #include using namespace std;

              int main(){ cout<<"Hello world";

              return 0;
              

              }

              • -2
                @ 2026-5-16 16:51:45

                "Hello world"

                • -3
                  @ 2026-6-3 21:05:36

                  #18198. 【输出】输出文字1ID: 18198传统题1000ms256MiB尝试: 1269已通过: 381难度: 6上传者:root标签>题目描述作为你入门第一个程序,请输出"Hello world"输入格式输出格式一行,如描述例 #1样例输入 #1样例输出 #1Hello world

                  • -3
                    @ 2026-5-23 11:17:59

                    #include <bits/stdc++.h> using namespace std;

                    int main() { cout << "Hello world"; return 0; }

                    • -3
                      @ 2026-5-23 11:17:39

                      § 小吉 §

                      • -3
                        @ 2026-5-23 10:44:36

                        kskbl zdjd

                      • -4
                        @ 2026-5-24 10:10:36

                        #include using namespace std;

                        int main(){ cout<<"Hello world"<<endl; return 0; } ****

                        • -4
                          @ 2026-5-20 21:02:58

                          #include<bits/stdc++.h> using namespace std;

                          int main(){

                          cout<<"Hello world";
                          return 0; 
                          

                          }

                          • -4
                            @ 2026-5-19 12:43:09

                            Hello world

                            • 1

                            信息

                            ID
                            18198
                            时间
                            1000ms
                            内存
                            256MiB
                            难度
                            6
                            标签
                            递交数
                            1449
                            已通过
                            448
                            上传者