/in/foo.c: In function 'result':
/in/foo.c:30:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(j>=n)
   ^~
/in/foo.c:32:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
    while(a[i].right >= a[j].right){
    ^~~~~
/in/foo.c:25:21: warning: variable 'o' set but not used [-Wunused-but-set-variable]
  int i, j, q, p, k, o;
                     ^
/in/foo.c:25:18: warning: variable 'k' set but not used [-Wunused-but-set-variable]
  int i, j, q, p, k, o;
                  ^