/in/foo.c: In function 'prime':
/in/foo.c:18:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    if(num%i==0&&num!=i)
    ^~
/in/foo.c:19:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
     j=0;break;
         ^~~~~