View Compilation Error

0_0_36023818_20699.cpp:55:13: error: 'Poinr' was not declared in this scope
 double area(Poinr u,Line v){
             ^
0_0_36023818_20699.cpp:55:26: error: expected primary-expression before 'v'
 double area(Poinr u,Line v){
                          ^
0_0_36023818_20699.cpp:55:27: error: expression list treated as compound expression in initializer [-fpermissive]
 double area(Poinr u,Line v){
                           ^
0_0_36023818_20699.cpp:55:28: error: expected ',' or ';' before '{' token
 double area(Poinr u,Line v){
                            ^
0_0_36023818_20699.cpp: In function 'int main()':
0_0_36023818_20699.cpp:86:48: error: 'area' cannot be used as a function
   if(x > 1) minn = min(minn,area(l[i],p[rx - 1]));
                                                ^
0_0_36023818_20699.cpp:87:48: error: 'area' cannot be used as a function
   if(y < n) minn = min(minn,area(l[i],p[ry + 1]));
                                                ^