0_0_39065673_13924.c: In function 'main':
0_0_39065673_13924.c:10:12: error: 'c' undeclared (first use in this function)
10 | if(c=='+')
| ^
0_0_39065673_13924.c:10:12: note: each undeclared identifier is reported only once for each function it appears in
|