Main.c: In function ‘main’:
Main.c:55:17: error: ‘qi’ undeclared (first use in this function); did you mean ‘i’?
   55 |   while (sum1 < qi[i].ti)
      |                 ^~
      |                 i
Main.c:55:17: note: each undeclared identifier is reported only once for each function it appears in
Main.c:31:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   31 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
Main.c:37:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   37 |   scanf("%c %d", &wa[i].way,&wa[i].ti);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:42:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   42 |  scanf("%d", &m);
      |  ^~~~~~~~~~~~~~~
Main.c:48:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   48 |   scanf("%c %d", &qu[i].way, &qu[i].ti);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~