Untitled

Making terminal input send after a certain number of characters
stdbuf -i0 ./a.out

#include <termios.h>

main(){
    struct termios trm;

    tcgetattr(STDIN_FILENO, &trm); /* get the current settings */
    trm.c_cc[VMIN] = 1;     /* return after 1 byte read; you might make this a 2*/
    trm.c_cc[VTIME] = 0;    /* block forever until 1 byte is read */
    tcsetattr(STDIN_FILENO, TCSANOW, &trm);
}