Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Here's the code-golfed version of the `stepper` function:
1 | void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
1 2 3 4 5 6 7 8 9 10 | Steps Pin 1 Pin 2 Pin 3 Pin 4 0 0 0 0 1 1 0 0 1 1 2 0 0 1 0 3 0 1 1 0 4 0 1 0 0 5 1 1 0 0 6 1 0 0 0 7 1 0 0 1 |
1 | void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
I extracted the following code from that output:
1 2 3 | #include <Arduino.h> void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #include <Arduino.h> void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} #include<stdio.h> #include<stdlib.h> #include <stdio.h> int out = 0; int digitalWrite(int pin, int value) { out *= 101; out += pin; out *= 97; out += value; return out; } int main() { int answer = (stepper(100),out); int expected = -1475775710; if (answer != expected) { printf("Wrong answer; got %d instead of %d.\n", answer, expected); exit(1); } printf("All tests passed\n"); } |
main.c:2:10: fatal error: Arduino.h: No such file or directory
2 | #include <Arduino.h>
| ^~~~~~~~~~~
compilation terminated.
main.sh: line 2: ./a.out: No such file or directory
Testing if the previous output contains the string All tests passed
: False
Resulting in output: True
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Here's the code golfed version of the `stepper` function, which is under 300 bytes (not counting whitespace):
1 | void stepper(int xw){int s=0,v[]={9,11,10,14,12,6,4,5};for(int x=0;x<xw;x++,s=(s+1)%8){digitalWrite(1,v[s]>>3&1);digitalWrite(2,v[s]>>2&1);digitalWrite(3,v[s]>>1&1);digitalWrite(4,v[s]&1);}} |
1 2 3 4 5 6 7 8 9 | void stepper(int xw) { int s = 0, v[] = {9, 11, 10, 14, 12, 6, 4, 5}; for (int x = 0; x < xw; x++, s = (s + 1) % 8) { digitalWrite(1, v[s] >> 3 & 1); digitalWrite(2, v[s] >> 2 & 1); digitalWrite(3, v[s] >> 1 & 1); digitalWrite(4, v[s] & 1); } } |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 | #include <Arduino.h> void stepper(int xw) { int s = 0, v[] = {9, 11, 10, 14, 12, 6, 4, 5}; for (int x = 0; x < xw; x++, s = (s + 1) % 8) { digitalWrite(1, v[s] >> 3 & 1); digitalWrite(2, v[s] >> 2 & 1); digitalWrite(3, v[s] >> 1 & 1); digitalWrite(4, v[s] & 1); } } |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | #include <Arduino.h> void stepper(int xw) { int s = 0, v[] = {9, 11, 10, 14, 12, 6, 4, 5}; for (int x = 0; x < xw; x++, s = (s + 1) % 8) { digitalWrite(1, v[s] >> 3 & 1); digitalWrite(2, v[s] >> 2 & 1); digitalWrite(3, v[s] >> 1 & 1); digitalWrite(4, v[s] & 1); } } #include<stdio.h> #include<stdlib.h> #include <stdio.h> int out = 0; int digitalWrite(int pin, int value) { out *= 101; out += pin; out *= 97; out += value; return out; } int main() { int answer = (stepper(100),out); int expected = -1475775710; if (answer != expected) { printf("Wrong answer; got %d instead of %d.\n", answer, expected); exit(1); } printf("All tests passed\n"); } |
main.c:2:10: fatal error: Arduino.h: No such file or directory
2 | #include <Arduino.h>
| ^~~~~~~~~~~
compilation terminated.
main.sh: line 2: ./a.out: No such file or directory
Testing if the previous output contains the string All tests passed
: False
Resulting in output: True
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Here's the code golfed version of the `stepper` function:
1 | void stepper(int x){for(int S=0;x--;digitalWrite(1,S>>2&1),digitalWrite(2,S>>1&1),digitalWrite(3,S>>3|S&1),digitalWrite(4,S>>2&1),S=(S+1)%8);} |
1 | void stepper(int x){for(int S=0;x--;digitalWrite(1,S>>2&1),digitalWrite(2,S>>1&1),digitalWrite(3,S>>3|S&1),digitalWrite(4,S>>2&1),S=(S+1)%8);} |
I extracted the following code from that output:
1 2 3 | #include <Arduino.h> void stepper(int x){for(int S=0;x--;digitalWrite(1,S>>2&1),digitalWrite(2,S>>1&1),digitalWrite(3,S>>3|S&1),digitalWrite(4,S>>2&1),S=(S+1)%8);} |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #include <Arduino.h> void stepper(int x){for(int S=0;x--;digitalWrite(1,S>>2&1),digitalWrite(2,S>>1&1),digitalWrite(3,S>>3|S&1),digitalWrite(4,S>>2&1),S=(S+1)%8);} #include<stdio.h> #include<stdlib.h> #include <stdio.h> int out = 0; int digitalWrite(int pin, int value) { out *= 101; out += pin; out *= 97; out += value; return out; } int main() { int answer = (stepper(100),out); int expected = -1475775710; if (answer != expected) { printf("Wrong answer; got %d instead of %d.\n", answer, expected); exit(1); } printf("All tests passed\n"); } |
main.c:2:10: fatal error: Arduino.h: No such file or directory
2 | #include <Arduino.h>
| ^~~~~~~~~~~
compilation terminated.
main.sh: line 2: ./a.out: No such file or directory
Testing if the previous output contains the string All tests passed
: False
Resulting in output: True
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Here's the code-golfed version of the `stepper` function:
1 | void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
1 | void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
1 2 | void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
I extracted the following code from that output:
1 2 3 | #include <Arduino.h> void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #include <Arduino.h> void stepper(int x){for(int i=0;i<x;i++)for(int j=0;j<4;j++)digitalWrite(j+1,i%8>>j&1);} #include<stdio.h> #include<stdlib.h> #include <stdio.h> int out = 0; int digitalWrite(int pin, int value) { out *= 101; out += pin; out *= 97; out += value; return out; } int main() { int answer = (stepper(100),out); int expected = -1475775710; if (answer != expected) { printf("Wrong answer; got %d instead of %d.\n", answer, expected); exit(1); } printf("All tests passed\n"); } |
main.c:2:10: fatal error: Arduino.h: No such file or directory
2 | #include <Arduino.h>
| ^~~~~~~~~~~
compilation terminated.
main.sh: line 2: ./a.out: No such file or directory
Testing if the previous output contains the string All tests passed
: False
Resulting in output: True
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Code golf this function to be a lot shorter. You only get points if it's <300 bytes (not counting whitespace). Keep the name `stepper`.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | void stepper(int xw) { int Steps = 0; for (int x = 0; x < xw; x++) { switch (Steps) { case 0: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; case 1: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 1); break; case 2: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 1); digitalWrite(4, 0); break; case 3: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 1); digitalWrite(4, 0); break; case 4: digitalWrite(1, 0); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 5: digitalWrite(1, 1); digitalWrite(2, 1); digitalWrite(3, 0); digitalWrite(4, 0); break; case 6: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; case 7: digitalWrite(1, 1); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 1); break; default: digitalWrite(1, 0); digitalWrite(2, 0); digitalWrite(3, 0); digitalWrite(4, 0); break; } Steps = (Steps + 1) % 8; } } |
Here's my final answer for the code golf version of the `stepper` function:
1 | void stepper(int x){for(int i=0;i<x;i++){int v=0b1000>>i%4;digitalWrite(1,v&1);digitalWrite(2,v&2);digitalWrite(3,v&4);digitalWrite(4,v&8);}} |
I extracted the following code from that output:
1 | void stepper(int x){for(int i=0;i<x;i++){int v=0b1000>>i%4;digitalWrite(1,v&1);digitalWrite(2,v&2);digitalWrite(3,v&4);digitalWrite(4,v&8);}} |
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | void stepper(int x){for(int i=0;i<x;i++){int v=0b1000>>i%4;digitalWrite(1,v&1);digitalWrite(2,v&2);digitalWrite(3,v&4);digitalWrite(4,v&8);}} #include<stdio.h> #include<stdlib.h> #include <stdio.h> int out = 0; int digitalWrite(int pin, int value) { out *= 101; out += pin; out *= 97; out += value; return out; } int main() { int answer = (stepper(100),out); int expected = -1475775710; if (answer != expected) { printf("Wrong answer; got %d instead of %d.\n", answer, expected); exit(1); } printf("All tests passed\n"); } |
Wrong answer; got -448581509 instead of -1475775710.
main.c: In function 'stepper':
main.c:2:60: warning: implicit declaration of function 'digitalWrite' [-Wimplicit-function-declaration]
2 | void stepper(int x){for(int i=0;i<x;i++){int v=0b1000>>i%4;digitalWrite(1,v&1);digitalWrite(2,v&2);digitalWrite(3,v&4);digitalWrite(4,v&8);}}
| ^~~~~~~~~~~~
Testing if the previous output contains the string All tests passed
: False
Resulting in output: True