main.adb:18:04: warning: analyzing unreferenced function "Is_Unvisited_Land"
main.adb:62:07: warning: initialization of "Visited_Cell" has no effect[#0]
main.adb:73:20: warning: unused assignment[#1]
main.adb:74:23: warning: unused assignment[#2]
main.adb:75:20: warning: unused assignment[#3]
main.adb:76:20: warning: unused assignment[#4]
main.adb:77:20: warning: unused assignment[#5]
main.adb:78:20: warning: unused assignment[#6]
main.adb:93:31: medium: overflow check might fail [possible explanation: subprogram at line 82 should mention Map_Array in a precondition][#7]
