/in/lab5.c: In function 'addZeroBeforeMinus':
/in/lab5.c:14:62: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
         if (str[i] == '-' && (i == 0 || !isdigit(str[i - 1]) && str[i - 1] != '.')) {
                                         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~