Compilare: main.cpp: In function 'void buildLines()': main.cpp:57:9: warning: unused variable 'v' [-Wunused-variable] 57 | int v; | ^ main.cpp:59:10: warning: unused variable 'ok' [-Wunused-variable] 59 | bool ok; | ^~ main.cpp: In function 'int main()': main.cpp:117:9: warning: unused variable 'x' [-Wunused-variable] 117 | int x, y, station, minStation; | ^ main.cpp:117:12: warning: unused variable 'y' [-Wunused-variable] 117 | int x, y, station, minStation; | ^ main.cpp:117:15: warning: unused variable 'station' [-Wunused-variable] 117 | int x, y, station, minStation; | ^~~~~~~ main.cpp:140:18: warning: 'minStation' may be used uninitialized [-Wmaybe-uninitialized] 140 | printSolution(minStation); | ~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp:117:24: note: 'minStation' was declared here 117 | int x, y, station, minStation; | ^~~~~~~~~~