Main.c: In function 'main':
Main.c:8:14: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    8 |         int n.m.x1,y1,x2,y2;
      |              ^
Main.c:8:14: error: expected expression before '.' token
Main.c:8:20: error: 'y1' undeclared (first use in this function)
    8 |         int n.m.x1,y1,x2,y2;
      |                    ^~
Main.c:8:20: note: each undeclared identifier is reported only once for each function it appears in
Main.c:8:19: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    8 |         int n.m.x1,y1,x2,y2;
      |                   ^
Main.c:8:23: error: 'x2' undeclared (first use in this function)
    8 |         int n.m.x1,y1,x2,y2;
      |                       ^~
Main.c:8:22: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    8 |         int n.m.x1,y1,x2,y2;
      |                      ^
Main.c:8:26: error: 'y2' undeclared (first use in this function)
    8 |         int n.m.x1,y1,x2,y2;
      |                          ^~
Main.c:8:25: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    8 |         int n.m.x1,y1,x2,y2;
      |                         ^
Main.c:9:31: error: 'n' undeclared (first use in this function)
    9 |         scanf("%d%d%d%d%d%d",&n,&m,&x1,&y1,&x2,&y2);
      |                               ^
Main.c:9:34: error: 'm' undeclared (first use in this function)
    9 |         scanf("%d%d%d%d%d%d",&n,&m,&x1,&y1,&x2,&y2);
      |                                  ^
Main.c:9:37: error: 'x1' undeclared (first use in this function)
    9 |         scanf("%d%d%d%d%d%d",&n,&m,&x1,&y1,&x2,&y2);
      |                                     ^~
Main.c:10:13: warning: unused variable 'dp' [-Wunused-variable]
   10 |         int dp[n][m];
      |             ^~