Main.c: In function ‘main’:
Main.c:4:14: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘-’ token
    4 |     int n=1,t-0;
      |              ^
Main.c:5:14: error: expected expression before ‘)’ token
    5 |     while(n!=)
      |              ^
Main.c:10:11: error: ‘t’ undeclared (first use in this function)
   10 |           t+=n;
      |           ^
Main.c:10:11: note: each undeclared identifier is reported only once for each function it appears in