/in/foo.c: In function 'main':
/in/foo.c:5:4: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
5 | 2<i<n;
| ~^~
/in/foo.c:5:6: warning: statement with no effect [-Wunused-value]
5 | 2<i<n;
| ~~~^~
/in/foo.c:5:4: warning: 'i' is used uninitialized [-Wuninitialized]
5 | 2<i<n;
| ~^~
/in/foo.c:4:9: note: 'i' was declared here
4 | { int n,i;
| ^
/in/foo.c:7:13: warning: 'n' is used uninitialized [-Wuninitialized]
7 | if(n%i==0)
| ~^~
/in/foo.c:4:7: note: 'n' was declared here
4 | { int n,i;
| ^