/in/foo.cc: In function 'void dp_John()':
/in/foo.cc:3:20: error: 'tt' was not declared in this scope
     for(int i=1;i<=tt;i++)f[i]=INF;
                    ^~
/in/foo.cc:3:27: error: 'f' was not declared in this scope
     for(int i=1;i<=tt;i++)f[i]=INF;
                           ^
/in/foo.cc:3:32: error: 'INF' was not declared in this scope
     for(int i=1;i<=tt;i++)f[i]=INF;
                                ^~~
/in/foo.cc:4:20: error: 'n' was not declared in this scope
     for(int i=1;i<=n;i++)
                    ^
/in/foo.cc:6:19: error: 'a' was not declared in this scope
         int k=1,c=a[i].cc;
                   ^
/in/foo.cc:9:23: error: 'tt' was not declared in this scope
             for(int j=tt;j>=a[i].vv*k;j--)
                       ^~
/in/foo.cc:10:17: error: 'f' was not declared in this scope
                 f[j]=min(f[j],f[j-a[i].vv*k]+k);
                 ^
/in/foo.cc:10:47: error: 'min' was not declared in this scope
                 f[j]=min(f[j],f[j-a[i].vv*k]+k);
                                               ^
/in/foo.cc:13:19: error: 'tt' was not declared in this scope
         for(int j=tt;j>=c*a[i].vv;j--)
                   ^~
/in/foo.cc:14:13: error: 'f' was not declared in this scope
             f[j]=min(f[j],f[j-a[i].vv*c]+c);
             ^
/in/foo.cc:14:43: error: 'min' was not declared in this scope
             f[j]=min(f[j],f[j-a[i].vv*c]+c);
                                           ^
/in/foo.cc: In function 'void dp_Rober()':
/in/foo.cc:19:20: error: 'tt' was not declared in this scope
     for(int i=1;i<=tt;i++)g[i]=INF;
                    ^~
/in/foo.cc:19:27: error: 'g' was not declared in this scope
     for(int i=1;i<=tt;i++)g[i]=INF;
                           ^
/in/foo.cc:19:32: error: 'INF' was not declared in this scope
     for(int i=1;i<=tt;i++)g[i]=INF;
                                ^~~
/in/foo.cc:20:20: error: 'n' was not declared in this scope
     for(int i=1;i<=n;i++)
                    ^
/in/foo.cc:21:17: error: 'a' was not declared in this scope
       for(int j=a[i].vv;j<=tt;j++)
                 ^
/in/foo.cc:21:28: error: 'tt' was not declared in this scope
       for(int j=a[i].vv;j<=tt;j++)
                            ^~
/in/foo.cc:22:7: error: 'g' was not declared in this scope
       g[j]=min(g[j],g[j-a[i].vv]+1);
       ^
/in/foo.cc:22:35: error: 'min' was not declared in this scope
       g[j]=min(g[j],g[j-a[i].vv]+1);
                                   ^