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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <stdlib.h>
  4.  
  5. // initialize the tape with 30,000 zeroes
  6. unsigned char tape[30000] = {0};
  7.  
  8. // set the pointer to point at the left-most cell of the tape
  9. unsigned char* ptr = tape;
  10.  
  11.  
  12. void interpret(char* input) {
  13.     char current_char;
  14.     size_t i;
  15.     size_t loop;
  16.  
  17.     for (i = 0; input[i] != 0; i++) {
  18.         current_char = input[i];
  19.         if (current_char == '>') {
  20.             ++ptr;
  21.         } else if (current_char == '<') {
  22.             --ptr;
  23.         } else if (current_char == '+') {
  24.             ++*ptr;
  25.         } else if (current_char == '-') {
  26.             --*ptr;
  27.         } else if (current_char == '.' ) {
  28.             putchar(*ptr);
  29.         } else if (current_char == ',') {
  30.             *ptr = getchar();
  31.         } else if (current_char == '[') {
  32.             continue;
  33.         } else if (current_char == ']' && *ptr) {
  34.             loop = 1;
  35.             while (loop > 0) {
  36.                 current_char = input[--i];
  37.                 if (current_char == '[') {
  38.                     loop--;
  39.                 } else if (current_char == ']') {
  40.                     loop++;
  41.                 }
  42.             }
  43.         }
  44.     }
  45. }
  46.  
  47.  
  48. int main() {
  49.     interpret("-------------------------------------------------------------------[>[-]<[-]]>[>--------------------------------------------------------[>[-]<[-]]>[>-------------------------------------------------------[>[-]<[-]]>[>------------------------------------------------------[>[-]<[-]]>[>---------------------------------------------------[>[-]<[-]]>[>---------------------------------[>[-]<[-]]>[>>----[---->+<]>++.++++++++.++++++++++.>-[----->+<]>.+[--->++<]>+++.>-[--->+<]>-.[---->+++++<]>-.[-->+<]>---.[--->++<]>---.++[->+++<]>.+[-->+<]>+.[--->++<]>---.++[->+++<]>.+++.[--->+<]>----.[-->+<]>-----.[->++<]>+.-[---->+++<]>.--------.>-[--->+<]>.-[----->+<]>-.++++++++.--[----->+++<]>.+++.[--->+<]>-.-[-->+<]>---.++[--->+++++<]>.++++++++++++++.+++[->+++++<]>.[----->+<]>++.>-[----->+<]>.---[->++<]>-.++++++.[--->+<]>+++.+++.[-]]]]]]]");  // outputs input
  50.     return 0;
  51. }
Success #stdin #stdout 0s 4292KB
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AIS3{Th1s_1s_br4iNFUCK_bu7_m0r3_ez}
https://ideone.com/AHnvP0
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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