foo.c: In function 'main':
foo.c:7:17: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |                ~^              ~~
      |                 |              |
      |                 int *          int
foo.c:7:20: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |                   ~^              ~~
      |                    |              |
      |                    int *          int
foo.c:7:23: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'int' [-Wformat=]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |                      ~^              ~
      |                       |              |
      |                       int *          int
foo.c:7:26: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'int' [-Wformat=]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |                         ~^             ~~
      |                          |             |
      |                          int *         int
foo.c:7:29: warning: format '%d' expects argument of type 'int *', but argument 6 has type 'int' [-Wformat=]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |                            ~^             ~~
      |                             |             |
      |                             int *         int
foo.c:7:9: warning: 'a1' is used uninitialized [-Wuninitialized]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:6:13: note: 'a1' was declared here
    6 |         int a1,x1,a2,x2;
      |             ^~
foo.c:7:9: warning: 'x1' is used uninitialized [-Wuninitialized]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:6:16: note: 'x1' was declared here
    6 |         int a1,x1,a2,x2;
      |                ^~
foo.c:7:9: warning: 'j' is used uninitialized [-Wuninitialized]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:5:13: note: 'j' was declared here
    5 |         int j;
      |             ^
foo.c:7:9: warning: 'a2' is used uninitialized [-Wuninitialized]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:6:19: note: 'a2' was declared here
    6 |         int a1,x1,a2,x2;
      |                   ^~
foo.c:7:9: warning: 'x2' is used uninitialized [-Wuninitialized]
    7 |         scanf("%d %d %d %d %d",a1,x1,j,a2,x2);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:6:22: note: 'x2' was declared here
    6 |         int a1,x1,a2,x2;
      |                      ^~

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