Compilare: user.cpp: In function 'void dfsCV(int)': user.cpp:112: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int dijkstra(int, int)': user.cpp:160: warning: comparison between signed and unsigned integer expressions user.cpp:187: warning: comparison between signed and unsigned integer expressions user.cpp:274: warning: comparison between signed and unsigned integer expressions user.cpp:305: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int test_printf()': user.cpp:399: warning: comparison between signed and unsigned integer expressions user.cpp:401: warning: comparison between signed and unsigned integer expressions user.cpp:409: warning: control reaches end of non-void function user.cpp: In function 'int init_read()': user.cpp:373: warning: control reaches end of non-void function user.cpp: In function 'int dijkstra(int, int)': user.cpp:316: warning: control reaches end of non-void function