View Compilation Error

0_0_17725233_20073.c: In function 'main':
0_0_17725233_20073.c:8:3: error: 't' undeclared (first use in this function)
   t=n/d;
   ^
0_0_17725233_20073.c:8:3: note: each undeclared identifier is reported only once for each function it appears in
0_0_17725233_20073.c:9:3: error: 't1' undeclared (first use in this function)
   t1=(int)t;
   ^