b̶r̶a̶i̶n̶fuck
Brainfuck is a pretty good esolang, but you can't use it without a brain. This is a bad esolang, but you don't need a brain to use it.
Introduction
This is an esolang designed by User:None1, for unbrained people and non-humans, but people with brains can still use it quite easily.
Execution
This esolang has only one command, which is the increment command +.There is also only one 8 bit cell.
When the program runs, it runs all the + commands (other characters are ignored), and prints the resulting cell value as ASCII.
Example Programs
Print A
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Interpreters
Note that the Python interpreter outputs an extra line feed, if you don't want that, you can add ,end="" before the last ).
C
#include<stdio.h>
int main(){
char c,x=0;
. while((c=getchar())!=EOF){
if(c=='+') ++x;
}
putchar(x);
return 0;
}
Python
print(chr(__import__("sys").stdin.read().count("+")%256))
brainfuck
>>>>>>>>>>>>>>>,>[-]>[-]+++++++++++++++++++++++++++++++++<<----------[<[-]<[-]>>[<<+>>-]+>>[<<<<->+>>>-]<<<[>>>+<<<-]<[>>-<<[-]]>[-]<[-]>>[<+<+>>-]<[>+<-]<[>>>+<<<[-]]>>,----------]>.
The program is generated using BFFuck, which is a brainfuck code generator. A much shorter one:
>,[<++++++[->-------<]>-[->[-]+<]>[->-<]>+<<,]>>.
Inteprets the whole program.
><>
>i:01-=?v00. v &0 r+1< >:"+"=?!v&v ;o&v?:< 1 ^ ~< &+<
A more optimized version:
0&01. >&n; >&1+&01. >i:0(?^:"+"=?^