lanterna.cpp: In function 'void dijkstra(int)': lanterna.cpp:72: warning: comparison between signed and unsigned integer expressions lanterna.cpp: In function 'void lanternaMinim()': lanterna.cpp:88: warning: unused variable 'i' lanterna.cpp: In function 'void dijkstra(int)': lanterna.cpp:51: warning: 'vfmin' may be used uninitialized in this function