View Compilation Error

0_0_19892399_4916.cpp: In function 'int main()':
0_0_19892399_4916.cpp:28:2: error: expected primary-expression before 'int'
  int n,m,u,v,w;
  ^
0_0_19892399_4916.cpp:29:16: error: 'm' was not declared in this scope
  scanf("%d%d",&m,&n);
                ^
0_0_19892399_4916.cpp:29:19: error: 'n' was not declared in this scope
  scanf("%d%d",&m,&n);
                   ^
0_0_19892399_4916.cpp:31:19: error: 'u' was not declared in this scope
   scanf("%d%d%d",&u,&v,&w);
                   ^
0_0_19892399_4916.cpp:31:22: error: 'v' was not declared in this scope
   scanf("%d%d%d",&u,&v,&w);
                      ^
0_0_19892399_4916.cpp:31:25: error: 'w' was not declared in this scope
   scanf("%d%d%d",&u,&v,&w);
                         ^